Added tqca package to the sources tree. This module is from

the original qca-1.0 sources with the TQt layer added.
This resolves bug report 817.

29 files changed, 4955 insertions, 0 deletions

diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..b1e3f5a
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,504 @@
+		  GNU LESSER GENERAL PUBLIC LICENSE
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diff --git a/INSTALL b/INSTALL
new file mode 100644
index 0000000..8dd3409
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,12 @@
+Installing QCA
+--------------
+
+Installation should be straightforward:
+
+  ./configure
+  make
+  make install
+
+NOTE: You may also need to run '/sbin/ldconfig' or a similar tool to
+      get the new library files recognized by the system.  If you are
+      using Linux, just run it for good measure.
diff --git a/README b/README
new file mode 100644
index 0000000..b909bc3
--- /dev/null
+++ b/README
@@ -0,0 +1,29 @@
+Qt Cryptographic Architecture
+-----------------------------
+Version: API v1.0, Plugin v1
+Author: Justin Karneges <justin@affinix.com>
+Date: September 10th 2003
+
+This library provides an easy API for the following features:
+
+  SSL/TLS
+  X509
+  SASL
+  RSA
+  Hashing (SHA1, MD5)
+  Ciphers (BlowFish, 3DES, AES)
+
+Functionality is supplied via plugins.  This is useful for avoiding
+dependence on a particular crypto library and makes upgrading easier,
+as there is no need to recompile your application when adding or
+upgrading a crypto plugin.  Also, by pushing crypto functionality into
+plugins, your application is free of legal issues, such as export
+regulation.
+
+And of course, you get a very simple crypto API for Qt, where you can
+do things like:
+
+  TQString hash = QCA::SHA1::hashToString(blockOfData);
+
+Have fun!
+
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..bc8247e
--- /dev/null
+++ b/TODO
@@ -0,0 +1,6 @@
+* plugins: thread safety ?
+
+* dsa
+* diffie-hellman
+* entropy
+
diff --git a/configure b/configure
new file mode 100755
index 0000000..111a180
--- /dev/null
+++ b/configure
@@ -0,0 +1,492 @@
+#!/bin/sh
+
+show_usage() {
+cat <<EOT
+Usage: ./configure [OPTION]...
+
+This script creates necessary configuration files to build/install.
+
+Main options:
+  --prefix=[path]   Base path for build/install.  Default: /usr/local
+  --qtdir=[path]    Directory where Qt is installed.
+  --help            This help text.
+
+EOT
+}
+
+while [ $# -gt 0 ]; do
+	case "$1" in
+		--prefix=*)
+			PREFIX=`expr "${1}" : "--prefix=\(.*\)"`
+			shift
+			;;
+
+		--qtdir=*)
+			QTDIR=`expr "${1}" : "--qtdir=\(.*\)"`
+			shift
+			;;
+
+		--debug)
+			QC_DEBUG="Y"
+			shift
+			;;
+		--help) show_usage; exit ;;
+		*) show_usage; exit ;;
+	esac
+done
+
+PREFIX=${PREFIX:-/usr/local}
+
+echo "Configuring TQt Cryptographic Architecture (QCA) ..."
+
+if [ "$QC_DEBUG" = "Y" ]; then
+echo
+echo PREFIX=$PREFIX
+echo QTDIR=$QTDIR
+echo
+fi
+
+printf "Verifying TQt 3.x Multithreaded (MT) build environment ... "
+
+if [ -z "$QTDIR" ]; then
+	if [ "$QC_DEBUG" = "Y" ]; then
+		echo \$QTDIR not set... trying to find Qt manually
+	fi
+	for p in /usr/lib/tqt /usr/share/tqt /usr/share/tqt3 /usr/local/lib/tqt /usr/local/share/tqt /usr/lib/tqt3 /usr/local/lib/tqt3 /usr/lib/qt /usr/share/qt /usr/share/qt3 /usr/local/lib/qt /usr/local/share/qt /usr/lib/qt3 /usr/local/lib/qt3 /usr/X11R6/share/qt /usr/qt/3 ; do
+		if [ -d "$p/mkspecs" ]; then
+			QTDIR=$p
+			break;
+		fi;
+	done
+	if [ -z "$QTDIR" ]; then
+		echo fail
+		echo
+		echo Unable to find Qt 'mkspecs'. Please set QTDIR
+		echo manually. Perhaps you need to install Qt 3
+		echo development utilities. You may download them either
+		echo from the vendor of your operating system or from
+		echo www.trolltech.com
+		echo
+		exit 1;
+	fi
+fi
+
+if [ ! -x "$QTDIR/bin/qmake" ]; then
+	if [ "$QC_DEBUG" = "Y" ]; then
+		echo Warning: qmake not in \$QTDIR/bin/qmake
+		echo trying to find it in \$PATH
+	fi
+	qm=`type -p qmake`
+	if [ -x "$qm" ]; then
+		if [ "$QC_DEBUG" = "Y" ]; then
+			echo qmake found in $qm
+		fi
+	else
+		echo fail
+		echo
+		echo Sorry, you seem to have a very unusual setup,
+		echo or I missdetected \$QTDIR=$QTDIR
+		echo
+		echo Please set \$QTDIR manually and make sure that
+		echo \$QTDIR/bin/qmake exists.
+		echo
+		exit 1;
+	fi
+else
+	qm=$QTDIR/bin/qmake
+fi
+
+gen_files() {
+cat >$1/modules.cpp <<EOT
+
+EOT
+cat >$1/modules_new.cpp <<EOT
+
+EOT
+cat >$1/conf.cpp <<EOT
+#include<stdio.h>
+#include<stdlib.h>
+#include<tqstring.h>
+#include<tqdict.h>
+#include<tqptrlist.h>
+#include<tqfileinfo.h>
+#include<tqfile.h>
+#include<tqdir.h>
+#include<tqstringlist.h>
+
+class Conf;
+
+class ConfObj
+{
+public:
+	ConfObj(Conf *c);
+	virtual ~ConfObj();
+
+	virtual TQString name() const=0;
+	virtual TQString shortname() const=0;
+	virtual bool exec()=0;
+
+	Conf *conf;
+	bool required;
+	bool disabled;
+};
+
+typedef TQPtrList<ConfObj> ConfObjList;
+typedef TQPtrListIterator<ConfObj> ConfObjListIt;
+
+class Conf
+{
+public:
+	Conf() : vars(17)
+	{
+		list.setAutoDelete(true);
+		vars.setAutoDelete(true);
+
+		vars.insert("QMAKE_INCDIR_X11", new TQString(X11_INC));
+		vars.insert("QMAKE_LIBDIR_X11", new TQString(X11_LIBDIR));
+		vars.insert("QMAKE_LIBS_X11",   new TQString(X11_LIB));
+		vars.insert("QMAKE_CC",         new TQString(CC));
+	}
+
+	~Conf()
+	{
+	}
+
+	void added(ConfObj *o)
+	{
+		list.append(o);
+	}
+
+	TQString getenv(const TQString &var)
+	{
+		char *p = ::getenv(var.latin1());
+		if(!p)
+			return TQString::null;
+		return TQString(p);
+	}
+
+	bool exec()
+	{
+		ConfObjListIt it(list);
+		for(ConfObj *o; (o = it.current()); ++it) {
+			// if this was a disabled-by-default option, check if it was enabled
+			if(o->disabled) {
+				TQString v = TQString("QC_ENABLE_") + o->shortname();
+				if(getenv(v) != "Y")
+					continue;
+			}
+			// and the opposite?
+			else {
+				TQString v = TQString("QC_DISABLE_") + o->shortname();
+				if(getenv(v) == "Y")
+					continue;
+			}
+
+			printf("Checking for %s ...", o->name().latin1());
+			fflush(stdout);
+			bool ok = o->exec();
+			if(ok)
+				printf(" yes\n");
+			else
+				printf(" no\n");
+			if(!ok && o->required) {
+				printf("\nError: need %s!\n", o->name().latin1());
+				return false;
+			}
+		}
+		return true;
+	}
+
+	const TQString & qvar(const TQString &s)
+	{
+		TQString *p = vars.find(s);
+		if(p)
+			return *p;
+		else
+			return blank;
+	}
+
+	TQString expandIncludes(const TQString &inc)
+	{
+		return TQString("-I") + inc;
+	}
+
+	TQString expandLibs(const TQString &lib)
+	{
+		return TQString("-L") + lib;
+	}
+
+	int doCommand(const TQString &s)
+	{
+		//printf("[%s]\n", s.latin1());
+		int r = system((s + " 1>/dev/null 2>/dev/null").latin1());
+		//printf("returned: %d\n", r);
+		return r;
+	}
+
+	bool doCompileAndLink(const TQString &filedata, const TQString &flags, int *retcode=0)
+	{
+		TQDir dir(".");
+		TQString fname = "atest.c";
+		TQString out = "atest";
+		TQFile f(fname);
+		TQCString cs = filedata.latin1();
+		if(!f.open(IO_WriteOnly | IO_Truncate))
+			return false;
+		f.writeBlock(cs.data(), cs.length());
+		f.close();
+
+		TQString str = qvar("QMAKE_CC") + ' ' + fname + " -o " + out + ' ' + flags;
+		int r = doCommand(str);
+		if(r == 0 && retcode)
+			*retcode = doCommand(TQString("./") + out);
+		dir.remove(fname);
+		dir.remove(out);
+		if(r != 0)
+			return false;
+		return true;
+	}
+
+	bool checkHeader(const TQString &path, const TQString &h)
+	{
+		TQFileInfo fi(path + '/' + h);
+		if(fi.exists())
+			return true;
+		return false;
+	}
+
+	bool findHeader(const TQString &h, const TQStringList &ext, TQString *inc)
+	{
+		if(checkHeader("/usr/include", h)) {
+			*inc = "";
+			return true;
+		}
+		TQStringList dirs;
+		dirs += "/usr/local/include";
+		dirs += ext;
+		for(TQStringList::ConstIterator it = dirs.begin(); it != dirs.end(); ++it) {
+			if(checkHeader(*it, h)) {
+				*inc = *it;
+				return true;
+			}
+		}
+		return false;
+	}
+
+	bool checkLibrary(const TQString &path, const TQString &name)
+	{
+		TQString str =
+			"int main()\n"
+			"{\n"
+			"    return 0;\n"
+			"}\n";
+
+		TQString extra;
+		if(!path.isEmpty())
+			extra += TQString("-L") + path + ' ';
+		extra += TQString("-l") + name;
+		if(!doCompileAndLink(str, extra))
+			return false;
+		return true;
+	}
+
+	bool findLibrary(const TQString &name, TQString *lib)
+	{
+		if(checkLibrary("", name)) {
+			*lib = "";
+			return true;
+		}
+		if(checkLibrary("/usr/local/lib", name)) {
+			*lib = "/usr/local/lib";
+			return true;
+		}
+		return false;
+	}
+
+	void addDefine(const TQString &str)
+	{
+		if(DEFINES.isEmpty())
+			DEFINES = str;
+		else
+			DEFINES += TQString(" ") + str;
+	}
+
+	void addLib(const TQString &str)
+	{
+		if(LIBS.isEmpty())
+			LIBS = str;
+		else
+			LIBS += TQString(" ") + str;
+	}
+
+	void addIncludePath(const TQString &str)
+	{
+		if(INCLUDEPATH.isEmpty())
+			INCLUDEPATH = str;
+		else
+			INCLUDEPATH += TQString(" ") + str;
+	}
+
+	void addExtra(const TQString &str)
+	{
+		extra += str + '\n';
+	}
+
+	TQString DEFINES;
+	TQString INCLUDEPATH;
+	TQString LIBS;
+	TQString extra;
+
+private:
+	ConfObjList list;
+	TQDict<TQString> vars;
+	TQString blank;
+};
+
+ConfObj::ConfObj(Conf *c)
+{
+	conf = c;
+	conf->added(this);
+	required = false;
+	disabled = false;
+}
+
+ConfObj::~ConfObj()
+{
+}
+
+#include"modules.cpp"
+
+//----------------------------------------------------------------------------
+// main
+//----------------------------------------------------------------------------
+int main()
+{
+	Conf *conf = new Conf;
+	ConfObj *o;
+	o = 0;
+#include"modules_new.cpp"
+
+	printf("ok\n");
+	bool success = false;
+	if(conf->exec()) {
+		TQFile f("conf.pri");
+		if(!f.open(IO_WriteOnly | IO_Truncate)) {
+			printf("Error writing %s\n", f.name().latin1());
+			return 1;
+		}
+
+		TQString str;
+		str += "# qconf\n";
+    str += "QT_PATH_PLUGINS = " + TQString(tqInstallPathPlugins()) + '\n';
+		if(!conf->DEFINES.isEmpty())
+			str += "DEFINES += " + conf->DEFINES + '\n';
+		if(!conf->INCLUDEPATH.isEmpty())
+			str += "INCLUDEPATH += " + conf->INCLUDEPATH + '\n';
+		if(!conf->LIBS.isEmpty())
+			str += "LIBS += " + conf->LIBS + '\n';
+		if(!conf->extra.isEmpty())
+			str += conf->extra;
+		str += '\n';
+
+		char *p = getenv("BINDIR");
+		if(p) {
+			str += TQString("target.path = ") + p + '\n';
+			str += "INSTALLS += target\n";
+		}
+
+		TQCString cs = str.latin1();
+		f.writeBlock(cs.data(), cs.length());
+		f.close();
+		success = true;
+	}
+	delete conf;
+
+	if(success)
+		return 0;
+	else
+		return 1;
+}
+
+EOT
+cat >$1/conf.pro <<EOT
+TEMPLATE = app
+CONFIG += qt x11 thread console
+TARGET = conf
+INCLUDEPATH += '/usr/include/tqt'
+
+DEFINES += X11_INC='"\$\$QMAKE_INCDIR_X11"'
+DEFINES += X11_LIBDIR='"\$\$QMAKE_LIBDIR_X11"'
+DEFINES += X11_LIB='"\$\$QMAKE_LIBS_X11"'
+DEFINES += CC='"\$\$QMAKE_CC"'
+
+SOURCES += conf.cpp
+
+EOT
+}
+
+export PREFIX
+export QTDIR
+rm -rf .qconftemp
+(
+	mkdir .qconftemp
+	gen_files .qconftemp
+	cd .qconftemp
+	$qm conf.pro >/dev/null
+	QTDIR=$QTDIR make clean >/dev/null 2>&1
+	QTDIR=$QTDIR make >../conf.log 2>&1
+)
+
+if [ "$?" != "0" ]; then
+	rm -rf .qconftemp
+	echo fail
+	echo
+	echo "There was an error compiling 'conf'.  Be sure you have a proper"
+	echo "TQt 3.x Multithreaded (MT) build environment set up."
+	if [ ! -f "$QTDIR/lib/libtqt-mt.so.3" ]; then
+		echo
+		echo "One possible reason is that you don't have"
+		echo "libtqt-mt.so.3 installed in $QTDIR/lib/."
+	fi
+	echo
+	exit 1;
+fi
+
+.qconftemp/conf
+ret="$?"
+if [ "$ret" = "1" ]; then
+	rm -rf .qconftemp
+	echo
+	exit 1;
+else
+	if [ "$ret" != "0" ]; then
+		rm -rf .qconftemp
+		echo fail
+		echo
+		echo Unexpected error launching 'conf'
+		echo
+		exit 1;
+	fi
+fi
+rm -rf .qconftemp
+
+if [ -x "./qcextra" ]; then
+	./qcextra
+fi
+# run qmake
+$qm qca.pro
+if [ "$?" != "0" ]; then
+	echo
+	exit 1;
+fi
+cat >Makefile.tmp <<EOT
+export QTDIR = $QTDIR
+EOT
+cat Makefile >> Makefile.tmp
+rm -f Makefile
+cp -f Makefile.tmp Makefile
+rm -f Makefile.tmp
+
+echo
+echo Good, your configure finished.  Now run \'make\'.
+echo
diff --git a/examples/certtest/certtest.cpp b/examples/certtest/certtest.cpp
new file mode 100644
index 0000000..db82993
--- /dev/null
+++ b/examples/certtest/certtest.cpp
@@ -0,0 +1,65 @@
+#include<tqdom.h>
+#include<tqfile.h>
+#include"base64.h"
+#include"qca.h"
+
+TQCA::Cert readCertXml(const TQDomElement &e)
+{
+	TQCA::Cert cert;
+	// there should be one child data tag
+	TQDomElement data = e.elementsByTagName("data").item(0).toElement();
+	if(!data.isNull())
+		cert.fromDER(Base64::stringToArray(data.text()));
+	return cert;
+}
+
+void showCertInfo(const TQCA::Cert &cert)
+{
+	printf(" CN: %s\n", cert.subject()["CN"].latin1());
+	printf(" Valid from: %s, until %s\n",
+		cert.notBefore().toString().latin1(),
+		cert.notAfter().toString().latin1());
+	printf(" PEM:\n%s\n", cert.toPEM().latin1());
+}
+
+int main()
+{
+	if(!TQCA::isSupported(TQCA::CAP_X509)) {
+		printf("X509 not supported!\n");
+		return 1;
+	}
+
+	// open the Psi rootcerts file
+	TQFile f("/usr/local/share/psi/certs/rootcert.xml");
+	if(!f.open(IO_ReadOnly)) {
+		printf("unable to open %s\n", f.name().latin1());
+		return 1;
+	}
+	TQDomDocument doc;
+	doc.setContent(&f);
+	f.close();
+
+	TQDomElement base = doc.documentElement();
+	if(base.tagName() != "store") {
+		printf("wrong format of %s\n", f.name().latin1());
+		return 1;
+	}
+	TQDomNodeList cl = base.elementsByTagName("certificate");
+	if(cl.count() == 0) {
+		printf("no certs found in %s\n", f.name().latin1());
+		return 1;
+	}
+
+	for(int n = 0; n < (int)cl.count(); ++n) {
+		printf("-- Cert %d --\n", n);
+		TQCA::Cert cert = readCertXml(cl.item(n).toElement());
+		if(cert.isNull()) {
+			printf("error reading cert\n");
+			continue;
+		}
+		showCertInfo(cert);
+	}
+
+	return 0;
+}
+
diff --git a/examples/certtest/certtest.pro b/examples/certtest/certtest.pro
new file mode 100644
index 0000000..75d4141
--- /dev/null
+++ b/examples/certtest/certtest.pro
@@ -0,0 +1,8 @@
+TEMPLATE = app
+CONFIG += thread console
+TARGET = certtest
+
+INCLUDEPATH += ../common
+HEADERS += ../common/base64.h
+SOURCES += ../common/base64.cpp certtest.cpp
+include(../examples.pri)
diff --git a/examples/ciphertest/ciphertest.cpp b/examples/ciphertest/ciphertest.cpp
new file mode 100644
index 0000000..3f2107e
--- /dev/null
+++ b/examples/ciphertest/ciphertest.cpp
@@ -0,0 +1,89 @@
+#include"qca.h"
+#include<stdio.h>
+
+static TQCString arrayToCString(const TQByteArray &);
+static TQByteArray cstringToArray(const TQCString &);
+static void doDynTest(TQCA::Cipher *c, const TQString &name, const TQCString &cs);
+
+int main(int argc, char **argv)
+{
+	TQCA::init();
+	TQCString cs = (argc >= 2) ? argv[1] : "hello";
+
+	// AES128 test
+	if(!TQCA::isSupported(TQCA::CAP_AES128))
+		printf("AES128 not supported!\n");
+	else {
+		// encrypt
+		TQByteArray key = TQCA::AES128::generateKey();
+		TQByteArray iv = TQCA::AES128::generateIV();
+		printf("aes128:key:%s\n", TQCA::arrayToHex(key).latin1());
+		printf("aes128:iv:%s\n", TQCA::arrayToHex(iv).latin1());
+		TQCA::AES128 c(TQCA::Encrypt, TQCA::CBC, key, iv);
+		c.update(cstringToArray(cs));
+		TQByteArray f = c.final();
+		TQString result = TQCA::arrayToHex(f);
+		printf(">aes128(\"%s\") = [%s]\n", cs.data(), result.latin1());
+
+		// decrypt
+		TQCA::AES128 d(TQCA::Decrypt, TQCA::CBC, key, iv);
+		d.update(f);
+		TQCString dec = arrayToCString(d.final());
+		printf("<aes128(\"%s\") = [%s]\n", result.latin1(), dec.data());
+	}
+
+	// BlowFish, TripleDES, and AES256 tested dynamically
+	if(!TQCA::isSupported(TQCA::CAP_BlowFish))
+		printf("BlowFish not supported!\n");
+	else
+		doDynTest(new TQCA::BlowFish, "bfish", cs);
+
+	if(!TQCA::isSupported(TQCA::CAP_TripleDES))
+		printf("TripleDES not supported!\n");
+	else
+		doDynTest(new TQCA::TripleDES, "3des", cs);
+
+	if(!TQCA::isSupported(TQCA::CAP_AES256))
+		printf("AES256 not supported!\n");
+	else
+		doDynTest(new TQCA::AES256, "aes256", cs);
+
+	return 0;
+}
+
+TQCString arrayToCString(const TQByteArray &a)
+{
+	TQCString cs;
+	cs.resize(a.size()+1);
+	memcpy(cs.data(), a.data(), a.size());
+	return cs;
+}
+
+TQByteArray cstringToArray(const TQCString &cs)
+{
+	TQByteArray a(cs.length());
+	memcpy(a.data(), cs.data(), a.size());
+	return a;
+}
+
+void doDynTest(TQCA::Cipher *c, const TQString &name, const TQCString &cs)
+{
+	// encrypt
+	TQByteArray key = c->dyn_generateKey();
+	TQByteArray iv = c->dyn_generateIV();
+	printf("%s:key:%s\n", name.latin1(), TQCA::arrayToHex(key).latin1());
+	printf("%s:iv:%s\n", name.latin1(), TQCA::arrayToHex(iv).latin1());
+	c->reset(TQCA::Encrypt, TQCA::CBC, key, iv);
+	c->update(cstringToArray(cs));
+	TQByteArray f = c->final();
+	TQString result = TQCA::arrayToHex(f);
+	printf(">%s(\"%s\") = [%s]\n", name.latin1(), cs.data(), result.latin1());
+
+	// decrypt
+	c->reset(TQCA::Decrypt, TQCA::CBC, key, iv);
+	c->update(f);
+	TQCString dec = arrayToCString(c->final());
+	printf("<%s(\"%s\") = [%s]\n", name.latin1(), result.latin1(), dec.data());
+	delete c;
+}
+
diff --git a/examples/ciphertest/ciphertest.pro b/examples/ciphertest/ciphertest.pro
new file mode 100644
index 0000000..c4119c5
--- /dev/null
+++ b/examples/ciphertest/ciphertest.pro
@@ -0,0 +1,6 @@
+TEMPLATE = app
+CONFIG += thread console
+TARGET = ciphertest
+
+SOURCES += ciphertest.cpp
+include(../examples.pri)
diff --git a/examples/common/base64.cpp b/examples/common/base64.cpp
new file mode 100644
index 0000000..5938680
--- /dev/null
+++ b/examples/common/base64.cpp
@@ -0,0 +1,173 @@
+/*
+ * base64.cpp - Base64 converting functions
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include"base64.h"
+
+//! \class Base64 base64.h
+//! \brief Base64 conversion functions.
+//!
+//! Converts Base64 data between arrays and strings.
+//!
+//! \code
+//! #include "base64.h"
+//!
+//! ...
+//!
+//! // encode a block of data into base64
+//! TQByteArray block(1024);
+//! TQByteArray enc = Base64::encode(block);
+//!
+//!  \endcode
+
+//!
+//! Encodes array \a s and returns the result.
+TQByteArray Base64::encode(const TQByteArray &s)
+{
+	int i;
+	int len = s.size();
+	char tbl[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+	int a, b, c;
+
+	TQByteArray p((len+2)/3*4);
+	int at = 0;
+	for( i = 0; i < len; i += 3 ) {
+		a = ((unsigned char)s[i] & 3) << 4;
+		if(i + 1 < len) {
+			a += (unsigned char)s[i + 1] >> 4;
+			b = ((unsigned char)s[i + 1] & 0xF) << 2;
+			if(i + 2 < len) {
+				b += (unsigned char)s[i + 2] >> 6;
+				c = (unsigned char)s[i + 2] & 0x3F;
+			}
+			else
+				c = 64;
+		}
+		else
+			b = c = 64;
+
+		p[at++] = tbl[(unsigned char)s[i] >> 2];
+		p[at++] = tbl[a];
+		p[at++] = tbl[b];
+		p[at++] = tbl[c];
+	}
+	return p;
+}
+
+//!
+//! Decodes array \a s and returns the result.
+TQByteArray Base64::decode(const TQByteArray &s)
+{
+	// return value
+	TQByteArray p;
+
+	// -1 specifies invalid
+	// 64 specifies eof
+	// everything else specifies data
+
+	char tbl[] = {
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,
+		52,53,54,55,56,57,58,59,60,61,-1,-1,-1,64,-1,-1,
+		-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,
+		15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,
+		-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,
+		41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+		-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+	};
+
+	// this should be a multiple of 4
+	int len = s.size();
+
+	if(len % 4)
+		return p;
+
+	p.resize(len / 4 * 3);
+
+	int i;
+	int at = 0;
+
+	int a, b, c, d;
+	c = d = 0;
+
+	for( i = 0; i < len; i += 4 ) {
+		a = tbl[(int)s[i]];
+		b = tbl[(int)s[i + 1]];
+		c = tbl[(int)s[i + 2]];
+		d = tbl[(int)s[i + 3]];
+		if((a == 64 || b == 64) || (a < 0 || b < 0 || c < 0 || d < 0)) {
+			p.resize(0);
+			return p;
+		}
+		p[at++] = ((a & 0x3F) << 2) | ((b >> 4) & 0x03);
+		p[at++] = ((b & 0x0F) << 4) | ((c >> 2) & 0x0F);
+		p[at++] = ((c & 0x03) << 6) | ((d >> 0) & 0x3F);
+	}
+
+	if(c & 64)
+		p.resize(at - 2);
+	else if(d & 64)
+		p.resize(at - 1);
+
+	return p;
+}
+
+//!
+//! Encodes array \a a and returns the result as a string.
+TQString Base64::arrayToString(const TQByteArray &a)
+{
+	TQByteArray b = encode(a);
+	TQCString c;
+	c.resize(b.size()+1);
+	memcpy(c.data(), b.data(), b.size());
+	return TQString::fromLatin1(c);
+}
+
+//!
+//! Decodes string \a s and returns the result as an array.
+TQByteArray Base64::stringToArray(const TQString &s)
+{
+	if(s.isEmpty())
+		return TQByteArray();
+	const char *c = s.latin1();
+	int len = strlen(c);
+	TQByteArray b(len);
+	memcpy(b.data(), c, len);
+	TQByteArray a = decode(b);
+	return a;
+}
+
+//!
+//! Encodes string \a s and returns the result as a string.
+TQString Base64::encodeString(const TQString &s)
+{
+	TQCString c = s.utf8();
+	int len = c.length();
+	TQByteArray b(len);
+	memcpy(b.data(), c.data(), len);
+	return arrayToString(b);
+}
diff --git a/examples/common/base64.h b/examples/common/base64.h
new file mode 100644
index 0000000..93c6023
--- /dev/null
+++ b/examples/common/base64.h
@@ -0,0 +1,36 @@
+/*
+ * base64.h - Base64 converting functions
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef CS_BASE64_H
+#define CS_BASE64_H
+
+#include<qstring.h>
+
+class Base64
+{
+public:
+	static TQByteArray encode(const TQByteArray &);
+	static TQByteArray decode(const TQByteArray &);
+	static TQString arrayToString(const TQByteArray &);
+	static TQByteArray stringToArray(const TQString &);
+	static TQString encodeString(const TQString &);
+};
+
+#endif
diff --git a/examples/examples.pri b/examples/examples.pri
new file mode 100644
index 0000000..b1c4f91
--- /dev/null
+++ b/examples/examples.pri
@@ -0,0 +1,7 @@
+# change/remove these entries, depending on the installation prefix
+INCLUDEPATH += /usr/local/include
+LIBS += -L/usr/local/lib
+
+# link
+LIBS += -lqca
+
diff --git a/examples/examples.pro b/examples/examples.pro
new file mode 100644
index 0000000..457b282
--- /dev/null
+++ b/examples/examples.pro
@@ -0,0 +1,11 @@
+TEMPLATE = subdirs
+
+SUBDIRS += \
+	hashtest \
+	ciphertest \
+	rsatest \
+	certtest \
+	ssltest \
+	sslservtest \
+	sasltest
+
diff --git a/examples/hashtest/hashtest.cpp b/examples/hashtest/hashtest.cpp
new file mode 100644
index 0000000..917c396
--- /dev/null
+++ b/examples/hashtest/hashtest.cpp
@@ -0,0 +1,25 @@
+#include"qca.h"
+#include<stdio.h>
+
+int main(int argc, char **argv)
+{
+	TQCA::init();
+	TQCString cs = (argc >= 2) ? argv[1] : "hello";
+
+	if(!TQCA::isSupported(TQCA::CAP_SHA1))
+		printf("SHA1 not supported!\n");
+	else {
+		TQString result = TQCA::SHA1::hashToString(cs);
+		printf("sha1(\"%s\") = [%s]\n", cs.data(), result.latin1());
+	}
+
+	if(!TQCA::isSupported(TQCA::CAP_MD5))
+		printf("MD5 not supported!\n");
+	else {
+		TQString result = TQCA::MD5::hashToString(cs);
+		printf("md5(\"%s\") = [%s]\n", cs.data(), result.latin1());
+	}
+
+	return 0;
+}
+
diff --git a/examples/hashtest/hashtest.pro b/examples/hashtest/hashtest.pro
new file mode 100644
index 0000000..d642131
--- /dev/null
+++ b/examples/hashtest/hashtest.pro
@@ -0,0 +1,6 @@
+TEMPLATE = app
+CONFIG += thread console
+TARGET = hashtest
+
+SOURCES += hashtest.cpp
+include(../examples.pri)
diff --git a/examples/rsatest/rsatest.cpp b/examples/rsatest/rsatest.cpp
new file mode 100644
index 0000000..bd513fd
--- /dev/null
+++ b/examples/rsatest/rsatest.cpp
@@ -0,0 +1,86 @@
+#include<tqfile.h>
+#include<tqfileinfo.h>
+#include"qca.h"
+#include<stdio.h>
+
+//#define USE_FILE
+
+TQCA::RSAKey readKeyFile(const TQString &name)
+{
+	TQCA::RSAKey k;
+	TQFile f(name);
+	if(!f.open(IO_ReadOnly)) {
+		printf("Unable to open %s\n", name.latin1());
+		return k;
+	}
+	TQByteArray der = f.readAll();
+	f.close();
+	printf("Read %s [%d bytes]\n", name.latin1(), der.size());
+
+	if(!k.fromDER(der)) {
+		printf("%s: Error importing DER format.\n", name.latin1());
+		return k;
+	}
+	char *yes = "yes";
+	char *no = "no";
+	printf("Successfully imported %s (enc=%s, dec=%s)\n",
+		name.latin1(),
+		k.havePublic() ? yes : no,
+		k.havePrivate() ? yes : no);
+
+	printf("Converting to DER: %d bytes\n", k.toDER().size());
+	printf("Converting to PEM:\n%s\n", k.toPEM().latin1());
+	return k;
+}
+
+int main(int argc, char **argv)
+{
+	TQCA::init();
+	TQCString cs = (argc >= 2) ? argv[1] : "hello";
+
+	if(!TQCA::isSupported(TQCA::CAP_RSA))
+		printf("RSA not supported!\n");
+	else {
+#ifdef USE_FILE
+		TQCA::RSAKey pubkey = readKeyFile("keypublic.der");
+		if(pubkey.isNull())
+			return 1;
+		TQCA::RSAKey seckey = readKeyFile("keyprivate.der");
+		if(seckey.isNull())
+			return 1;
+#else
+		TQCA::RSAKey seckey = TQCA::RSA::generateKey(1024);
+		if(seckey.isNull())
+			return 1;
+		TQCA::RSAKey pubkey = seckey;
+#endif
+		// encrypt some data
+		TQByteArray a(cs.length());
+		memcpy(a.data(), cs.data(), a.size());
+
+		TQCA::RSA op;
+		op.setKey(pubkey);
+		TQByteArray result;
+		if(!op.encrypt(a, &result)) {
+			printf("Error encrypting.\n");
+			return 1;
+		}
+		TQString rstr = TQCA::arrayToHex(result);
+		printf(">rsa(\"%s\") = [%s]\n", cs.data(), rstr.latin1());
+
+		// now decrypt it
+		op.setKey(seckey);
+		TQByteArray dec;
+		if(!op.decrypt(result, &dec)) {
+			printf("Error decrypting.\n");
+			return 1;
+		}
+		TQCString dstr;
+		dstr.resize(dec.size()+1);
+		memcpy(dstr.data(), dec.data(), dec.size());
+		printf("<rsa(\"%s\") = [%s]\n", rstr.latin1(), dstr.data());
+	}
+
+	return 0;
+}
+
diff --git a/examples/rsatest/rsatest.pro b/examples/rsatest/rsatest.pro
new file mode 100644
index 0000000..fc293ad
--- /dev/null
+++ b/examples/rsatest/rsatest.pro
@@ -0,0 +1,6 @@
+TEMPLATE = app
+CONFIG += thread console
+TARGET = rsatest
+
+SOURCES += rsatest.cpp
+include(../examples.pri)
diff --git a/examples/sasltest/sasltest.cpp b/examples/sasltest/sasltest.cpp
new file mode 100644
index 0000000..dd4f858
--- /dev/null
+++ b/examples/sasltest/sasltest.cpp
@@ -0,0 +1,615 @@
+#include<tqapplication.h>
+#include<tqtimer.h>
+#include<tqsocket.h>
+#include<tqserversocket.h>
+#include<stdio.h>
+
+#ifdef Q_OS_UNIX
+#include<unistd.h>
+#endif
+
+#include"base64.h"
+#include"qca.h"
+
+#define PROTO_NAME "foo"
+#define PROTO_PORT 8001
+
+static TQString prompt(const TQString &s)
+{
+	printf("* %s ", s.latin1());
+	fflush(stdout);
+	char line[256];
+	fgets(line, 255, stdin);
+	TQString result = line;
+	if(result[result.length()-1] == '\n')
+		result.truncate(result.length()-1);
+	return result;
+}
+
+class ClientTest : public TQObject
+{
+	Q_OBJECT
+public:
+	ClientTest()
+	{
+		sock = new TQSocket;
+		connect(sock, SIGNAL(connected()), SLOT(sock_connected()));
+		connect(sock, SIGNAL(connectionClosed()), SLOT(sock_connectionClosed()));
+		connect(sock, SIGNAL(readyRead()), SLOT(sock_readyRead()));
+		connect(sock, SIGNAL(error(int)), SLOT(sock_error(int)));
+
+		sasl = new QCA::SASL;
+		connect(sasl, SIGNAL(clientFirstStep(const TQString &, const TQByteArray *)), SLOT(sasl_clientFirstStep(const TQString &, const TQByteArray *)));
+		connect(sasl, SIGNAL(nextStep(const TQByteArray &)), SLOT(sasl_nextStep(const TQByteArray &)));
+		connect(sasl, SIGNAL(needParams(bool, bool, bool, bool)), SLOT(sasl_needParams(bool, bool, bool, bool)));
+		connect(sasl, SIGNAL(authenticated()), SLOT(sasl_authenticated()));
+		connect(sasl, SIGNAL(readyRead()), SLOT(sasl_readyRead()));
+		connect(sasl, SIGNAL(readyReadOutgoing(int)), SLOT(sasl_readyReadOutgoing(int)));
+		connect(sasl, SIGNAL(error(int)), SLOT(sasl_error(int)));
+	}
+
+	~ClientTest()
+	{
+		delete sock;
+		delete sasl;
+	}
+
+	void start(const TQString &_host, int port, const TQString &user="", const TQString &pass="")
+	{
+		mode = 0;
+		host = _host;
+		sock->connectToHost(host, port);
+		sasl->setMinimumSSF(0);
+		sasl->setMaximumSSF(256);
+
+		if(!user.isEmpty()) {
+			sasl->setUsername(user);
+			sasl->setAuthzid(user);
+		}
+		if(!pass.isEmpty())
+			sasl->setPassword(pass);
+	}
+
+signals:
+	void quit();
+
+private slots:
+	void sock_connected()
+	{
+		printf("Connected to server.  Awaiting mechanism list...\n");
+	}
+
+	void sock_connectionClosed()
+	{
+		printf("Connection closed by peer.\n");
+		quit();
+	}
+
+	void sock_error(int x)
+	{
+		TQString s;
+		if(x == TQSocket::ErrConnectionRefused)
+			s = "connection refused or timed out";
+		else if(x == TQSocket::ErrHostNotFound)
+			s = "host not found";
+		else if(x == TQSocket::ErrSocketRead)
+			s = "read error";
+
+		printf("Socket error: %s\n", s.latin1());
+		quit();
+	}
+
+	void sock_readyRead()
+	{
+		if(mode == 2) {
+			int avail = sock->bytesAvailable();
+			TQByteArray a(avail);
+			int n = sock->readBlock(a.data(), a.size());
+			a.resize(n);
+			printf("Read %d bytes\n", a.size());
+			sasl->writeIncoming(a);
+		}
+		else {
+			if(sock->canReadLine()) {
+				TQString line = sock->readLine();
+				line.truncate(line.length()-1); // chop the newline
+				handleLine(line);
+			}
+		}
+	}
+
+	void sasl_clientFirstStep(const TQString &mech, const TQByteArray *clientInit)
+	{
+		printf("Choosing mech: %s\n", mech.latin1());
+		TQString line = mech;
+		if(clientInit) {
+			TQCString cs(clientInit->data(), clientInit->size()+1);
+			line += ' ';
+			line += cs;
+		}
+		sendLine(line);
+	}
+
+	void sasl_nextStep(const TQByteArray &stepData)
+	{
+		TQCString cs(stepData.data(), stepData.size()+1);
+		TQString line = "C";
+		if(!stepData.isEmpty()) {
+			line += ',';
+			line += cs;
+		}
+		sendLine(line);
+	}
+
+	void sasl_needParams(bool user, bool authzid, bool pass, bool realm)
+	{
+		TQString username;
+		if(user || authzid)
+			username = prompt("Username:");
+		if(user) {
+			sasl->setUsername(username);
+		}
+		if(authzid) {
+			sasl->setAuthzid(username);
+		}
+		if(pass) {
+			sasl->setPassword(prompt("Password (not hidden!) :"));
+		}
+		if(realm) {
+			sasl->setRealm(prompt("Realm:"));
+		}
+		sasl->continueAfterParams();
+	}
+
+	void sasl_authenticated()
+	{
+		printf("SASL success!\n");
+		printf("SSF: %d\n", sasl->ssf());
+	}
+
+	void sasl_readyRead()
+	{
+		TQByteArray a = sasl->read();
+		int oldsize = inbuf.size();
+		inbuf.resize(oldsize + a.size());
+		memcpy(inbuf.data() + oldsize, a.data(), a.size());
+		processInbuf();
+	}
+
+	void sasl_readyReadOutgoing(int)
+	{
+		TQByteArray a = sasl->readOutgoing();
+		sock->writeBlock(a.data(), a.size());
+	}
+
+	void sasl_error(int)
+	{
+		printf("SASL error!\n");
+		quit();
+		return;
+	}
+
+private:
+	TQSocket *sock;
+	QCA::SASL *sasl;
+	int mode;
+	TQString host;
+	TQByteArray inbuf;
+
+	void processInbuf()
+	{
+		TQStringList list;
+		for(int n = 0; n < (int)inbuf.size(); ++n) {
+			if(inbuf[n] == '\n') {
+				TQCString cs(inbuf.data(), n+1);
+				char *p = inbuf.data();
+				++n;
+				int x = inbuf.size() - n;
+				memmove(p, p + n, x);
+				inbuf.resize(x);
+				list += TQString::fromUtf8(cs);
+				// start over, basically
+				n = -1;
+			}
+		}
+
+		for(TQStringList::ConstIterator it = list.begin(); it != list.end(); ++it)
+			handleLine(*it);
+	}
+
+	void handleLine(const TQString &line)
+	{
+		printf("Reading: [%s]\n", line.latin1());
+		if(mode == 0) {
+			// first line is the method list
+			TQStringList mechlist = TQStringList::split(' ', line);
+			++mode;
+
+			// kick off the client
+			sasl->setAllowAnonymous(false);
+			if(!sasl->startClient(PROTO_NAME, host, mechlist)) {
+				printf("Error starting client!\n");
+				quit();
+			}
+		}
+		else if(mode == 1) {
+			TQString type, rest;
+			int n = line.find(',');
+			if(n != -1) {
+				type = line.mid(0, n);
+				rest = line.mid(n+1);
+			}
+			else {
+				type = line;
+				rest = "";
+			}
+
+			if(type == "C") {
+				TQCString cs = rest.latin1();
+				TQByteArray buf(cs.length());
+				memcpy(buf.data(), cs.data(), buf.size());
+				sasl->putStep(buf);
+			}
+			else if(type == "E") {
+				printf("Authentication failed.\n");
+				quit();
+				return;
+			}
+			else if(type == "A") {
+				printf("Authentication success.\n");
+				++mode;
+				sock_readyRead(); // any extra data?
+				return;
+			}
+			else {
+				printf("Bad format from peer, closing.\n");
+				quit();
+				return;
+			}
+		}
+		else {
+		}
+	}
+
+	void sendLine(const TQString &line)
+	{
+		printf("Writing: {%s}\n", line.latin1());
+		TQString s = line + '\n';
+		TQCString cs = s.latin1();
+		if(mode == 2) {
+			TQByteArray a(cs.length());
+			memcpy(a.data(), cs.data(), a.size());
+			sasl->write(a);
+		}
+		else
+			sock->writeBlock(cs.data(), cs.length());
+	}
+};
+
+class ServerTest : public QServerSocket
+{
+	Q_OBJECT
+public:
+	ServerTest(const TQString &_str, int _port) : QServerSocket(_port), port(_port)
+	{
+		sock = 0;
+		sasl = 0;
+		realm = TQString::null;
+		str = _str;
+	}
+
+	~ServerTest()
+	{
+		delete sock;
+		delete sasl;
+	}
+
+	void start()
+	{
+		if(!ok()) {
+			printf("Error binding to port %d!\n", port);
+			TTQTimer::singleShot(0, this, SIGNAL(quit()));
+			return;
+		}
+		char myhostname[256];
+		int r = gethostname(myhostname, sizeof(myhostname)-1);
+		if(r == -1) {
+			printf("Error getting hostname!\n");
+			TTQTimer::singleShot(0, this, SIGNAL(quit()));
+			return;
+		}
+		host = myhostname;
+		printf("Listening on %s:%d ...\n", host.latin1(), port);
+	}
+
+	void newConnection(int s)
+	{
+		// Note: only 1 connection supported at a time in this example!
+		if(sock) {
+			TQSocket tmp;
+			tmp.setSocket(s);
+			printf("Connection ignored, already have one active.\n");
+			return;
+		}
+
+		printf("Connection received!  Starting SASL handshake...\n");
+
+		sock = new TQSocket;
+		connect(sock, SIGNAL(connectionClosed()), SLOT(sock_connectionClosed()));
+		connect(sock, SIGNAL(readyRead()), SLOT(sock_readyRead()));
+		connect(sock, SIGNAL(error(int)), SLOT(sock_error(int)));
+		connect(sock, SIGNAL(bytesWritten(int)), SLOT(sock_bytesWritten(int)));
+
+		sasl = new QCA::SASL;
+		connect(sasl, SIGNAL(authCheck(const TQString &, const TQString &)), SLOT(sasl_authCheck(const TQString &, const TQString &)));
+		connect(sasl, SIGNAL(nextStep(const TQByteArray &)), SLOT(sasl_nextStep(const TQByteArray &)));
+		connect(sasl, SIGNAL(authenticated()), SLOT(sasl_authenticated()));
+		connect(sasl, SIGNAL(readyRead()), SLOT(sasl_readyRead()));
+		connect(sasl, SIGNAL(readyReadOutgoing(int)), SLOT(sasl_readyReadOutgoing(int)));
+		connect(sasl, SIGNAL(error(int)), SLOT(sasl_error(int)));
+
+		sock->setSocket(s);
+		mode = 0;
+		inbuf.resize(0);
+
+		sasl->setMinimumSSF(0);
+		sasl->setMaximumSSF(256);
+
+		TQStringList mechlist;
+		if(!sasl->startServer(PROTO_NAME, host, realm, &mechlist)) {
+			printf("Error starting server!\n");
+			quit();
+		}
+		TQString str;
+		bool first = true;
+		for(TQStringList::ConstIterator it = mechlist.begin(); it != mechlist.end(); ++it) {
+			if(!first)
+				str += ' ';
+			str += *it;
+			first = false;
+		}
+		sendLine(str);
+	}
+
+signals:
+	void quit();
+
+private slots:
+	void sock_connectionClosed()
+	{
+		printf("Connection closed by peer.\n");
+		close();
+	}
+
+	void sock_error(int x)
+	{
+		TQString s;
+		if(x == TQSocket::ErrConnectionRefused)
+			s = "connection refused or timed out";
+		else if(x == TQSocket::ErrHostNotFound)
+			s = "host not found";
+		else if(x == TQSocket::ErrSocketRead)
+			s = "read error";
+
+		printf("Socket error: %s\n", s.latin1());
+		close();
+	}
+
+	void sock_readyRead()
+	{
+		if(sock->canReadLine()) {
+			TQString line = sock->readLine();
+			line.truncate(line.length()-1); // chop the newline
+			handleLine(line);
+		}
+	}
+
+	void sock_bytesWritten(int x)
+	{
+		if(mode == 2) {
+			toWrite -= x;
+			if(toWrite <= 0) {
+				printf("Sent, closing.\n");
+				close();
+			}
+		}
+	}
+
+	void sasl_nextStep(const TQByteArray &stepData)
+	{
+		TQCString cs(stepData.data(), stepData.size()+1);
+		TQString line = "C";
+		if(!stepData.isEmpty()) {
+			line += ',';
+			line += cs;
+		}
+		sendLine(line);
+	}
+
+	void sasl_authCheck(const TQString &user, const TQString &authzid)
+	{
+		printf("AuthCheck: User: [%s], Authzid: [%s]\n", user.latin1(), authzid.latin1());
+		sasl->continueAfterAuthCheck();
+	}
+
+	void sasl_authenticated()
+	{
+		sendLine("A");
+		printf("Authentication success.\n");
+		++mode;
+		printf("SSF: %d\n", sasl->ssf());
+		sendLine(str);
+	}
+
+	void sasl_readyRead()
+	{
+		TQByteArray a = sasl->read();
+		int oldsize = inbuf.size();
+		inbuf.resize(oldsize + a.size());
+		memcpy(inbuf.data() + oldsize, a.data(), a.size());
+		processInbuf();
+	}
+
+	void sasl_readyReadOutgoing(int)
+	{
+		TQByteArray a = sasl->readOutgoing();
+		toWrite = a.size();
+		sock->writeBlock(a.data(), a.size());
+	}
+
+	void sasl_error(int x)
+	{
+		if(x == QCA::SASL::ErrAuth) {
+			sendLine("E");
+			printf("Authentication failed.\n");
+			close();
+		}
+		else {
+			printf("SASL security layer error!\n");
+			close();
+		}
+	}
+
+private:
+	TQSocket *sock;
+	QCA::SASL *sasl;
+	TQString host, realm;
+	int port;
+	int mode;
+	TQString str;
+	TQByteArray inbuf;
+	int toWrite;
+
+	void processInbuf()
+	{
+	}
+
+	void handleLine(const TQString &line)
+	{
+		printf("Reading: [%s]\n", line.latin1());
+		if(mode == 0) {
+			int n = line.find(' ');
+			if(n != -1) {
+				TQString mech = line.mid(0, n);
+				TQCString cs = line.mid(n+1).latin1();
+				TQByteArray clientInit(cs.length());
+				memcpy(clientInit.data(), cs.data(), clientInit.size());
+				sasl->putServerFirstStep(mech, clientInit);
+			}
+			else
+				sasl->putServerFirstStep(line);
+			++mode;
+		}
+		else if(mode == 1) {
+			TQString type, rest;
+			int n = line.find(',');
+			if(n != -1) {
+				type = line.mid(0, n);
+				rest = line.mid(n+1);
+			}
+			else {
+				type = line;
+				rest = "";
+			}
+
+			if(type == "C") {
+				TQCString cs = rest.latin1();
+				TQByteArray buf(cs.length());
+				memcpy(buf.data(), cs.data(), buf.size());
+				sasl->putStep(buf);
+			}
+			else {
+				printf("Bad format from peer, closing.\n");
+				close();
+				return;
+			}
+		}
+	}
+
+	void sendLine(const TQString &line)
+	{
+		printf("Writing: {%s}\n", line.latin1());
+		TQString s = line + '\n';
+		TQCString cs = s.latin1();
+		if(mode == 2) {
+			TQByteArray a(cs.length());
+			memcpy(a.data(), cs.data(), a.size());
+			sasl->write(a);
+		}
+		else
+			sock->writeBlock(cs.data(), cs.length());
+	}
+
+	void close()
+	{
+		sock->deleteLater();
+		sock = 0;
+		delete sasl;
+		sasl = 0;
+	}
+};
+
+#include"sasltest.moc"
+
+void usage()
+{
+	printf("usage: sasltest client [host] [user] [pass]\n");
+	printf("       sasltest server [string]\n\n");
+}
+
+int main(int argc, char **argv)
+{
+	TQApplication app(argc, argv, false);
+
+	TQString host, user, pass;
+	TQString str = "Hello, World";
+	bool server;
+	if(argc < 2) {
+		usage();
+		return 0;
+	}
+	TQString arg = argv[1];
+	if(arg == "client") {
+		if(argc < 3) {
+			usage();
+			return 0;
+		}
+		host = argv[2];
+		if(argc >= 4)
+			user = argv[3];
+		if(argc >= 5)
+			pass = argv[4];
+		server = false;
+	}
+	else if(arg == "server") {
+		if(argc >= 3)
+			str = argv[2];
+		server = true;
+	}
+	else {
+		usage();
+		return 0;
+	}
+
+	if(!QCA::isSupported(QCA::CAP_SASL)) {
+		printf("SASL not supported!\n");
+		return 1;
+	}
+
+	if(server) {
+		ServerTest *s = new ServerTest(str, PROTO_PORT);
+		TQObject::connect(s, SIGNAL(quit()), &app, SLOT(quit()));
+		s->start();
+		app.exec();
+		delete s;
+	}
+	else {
+		ClientTest *c = new ClientTest;
+		TQObject::connect(c, SIGNAL(quit()), &app, SLOT(quit()));
+		c->start(host, PROTO_PORT, user, pass);
+		app.exec();
+		delete c;
+	}
+
+	return 0;
+}
diff --git a/examples/sasltest/sasltest.pro b/examples/sasltest/sasltest.pro
new file mode 100644
index 0000000..f7d1c98
--- /dev/null
+++ b/examples/sasltest/sasltest.pro
@@ -0,0 +1,8 @@
+TEMPLATE = app
+CONFIG += thread console
+TARGET = sasltest
+
+INCLUDEPATH += ../common
+HEADERS += ../common/base64.h
+SOURCES += ../common/base64.cpp sasltest.cpp
+include(../examples.pri)
diff --git a/examples/sslservtest/sslservtest.cpp b/examples/sslservtest/sslservtest.cpp
new file mode 100644
index 0000000..384558f
--- /dev/null
+++ b/examples/sslservtest/sslservtest.cpp
@@ -0,0 +1,294 @@
+#include<tqapplication.h>
+#include<tqfile.h>
+#include<tqsocket.h>
+#include<tqserversocket.h>
+#include<tqvaluelist.h>
+#include<tqtimer.h>
+#include"qca.h"
+
+char pemdata_cert[] =
+	"-----BEGIN CERTIFICATE-----\n"
+	"MIIDbjCCAtegAwIBAgIBADANBgkqhkiG9w0BAQQFADCBhzELMAkGA1UEBhMCVVMx\n"
+	"EzARBgNVBAgTCkNhbGlmb3JuaWExDzANBgNVBAcTBklydmluZTEYMBYGA1UEChMP\n"
+	"RXhhbXBsZSBDb21wYW55MRQwEgYDVQQDEwtleGFtcGxlLmNvbTEiMCAGCSqGSIb3\n"
+	"DQEJARYTZXhhbXBsZUBleGFtcGxlLmNvbTAeFw0wMzA3MjQwNzMwMDBaFw0wMzA4\n"
+	"MjMwNzMwMDBaMIGHMQswCQYDVQQGEwJVUzETMBEGA1UECBMKQ2FsaWZvcm5pYTEP\n"
+	"MA0GA1UEBxMGSXJ2aW5lMRgwFgYDVQQKEw9FeGFtcGxlIENvbXBhbnkxFDASBgNV\n"
+	"BAMTC2V4YW1wbGUuY29tMSIwIAYJKoZIhvcNAQkBFhNleGFtcGxlQGV4YW1wbGUu\n"
+	"Y29tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCobzCF268K2sRp473gvBTT\n"
+	"4AgSL1kjeF8N57vxS1P8zWrWMXNs4LuH0NRZmKTajeboy0br8xw+smIy3AbaKAwW\n"
+	"WZToesxebu3m9VeA8dqWyOaUMjoxAcgVYesgVaMpjRe7fcWdJnX1wJoVVPuIcO8m\n"
+	"a+AAPByfTORbzpSTmXAQAwIDAQABo4HnMIHkMB0GA1UdDgQWBBTvFierzLmmYMq0\n"
+	"cB/+5rK1bNR56zCBtAYDVR0jBIGsMIGpgBTvFierzLmmYMq0cB/+5rK1bNR566GB\n"
+	"jaSBijCBhzELMAkGA1UEBhMCVVMxEzARBgNVBAgTCkNhbGlmb3JuaWExDzANBgNV\n"
+	"BAcTBklydmluZTEYMBYGA1UEChMPRXhhbXBsZSBDb21wYW55MRQwEgYDVQQDEwtl\n"
+	"eGFtcGxlLmNvbTEiMCAGCSqGSIb3DQEJARYTZXhhbXBsZUBleGFtcGxlLmNvbYIB\n"
+	"ADAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBBAUAA4GBAGqGhXf7xNOnYNtFO7gz\n"
+	"K6RdZGHFI5q1DAEz4hhNBC9uElh32XGX4wN7giz3zLC8v9icL/W4ff/K5NDfv3Gf\n"
+	"gQe/+Wo9Be3H3ul6uwPPFnx4+PIOF2a5TW99H9smyxWdNjnFtcUte4al3RszcMWG\n"
+	"x3iqsWosGtj6F+ridmKoqKLu\n"
+	"-----END CERTIFICATE-----\n";
+
+char pemdata_privkey[] =
+	"-----BEGIN RSA PRIVATE KEY-----\n"
+	"MIICXAIBAAKBgQCobzCF268K2sRp473gvBTT4AgSL1kjeF8N57vxS1P8zWrWMXNs\n"
+	"4LuH0NRZmKTajeboy0br8xw+smIy3AbaKAwWWZToesxebu3m9VeA8dqWyOaUMjox\n"
+	"AcgVYesgVaMpjRe7fcWdJnX1wJoVVPuIcO8ma+AAPByfTORbzpSTmXAQAwIDAQAB\n"
+	"AoGAP83u+aYghuIcaWhmM03MLf69z/WztKYSi/fu0BcS977w67bL3MC9CVPoPRB/\n"
+	"0nLSt/jZIuRzHKUCYfXLerSU7v0oXDTy6GPzWMh/oXIrpF0tYNbwWF7LSq2O2gGZ\n"
+	"XtA9MSmUNNJaKzQQeXjqdVFOY8A0Pho+k2KByBiCi+ChkcECQQDRUuyX0+PKJtA2\n"
+	"M36BOTFpy61BAv+JRlXUnHuevOfQWl6NR6YGygqCyH1sWtP1sa9S4wWys3DFH+5A\n"
+	"DkuAqk7zAkEAzf4eUH2hp5CIMsXH+WpIzKj09oY1it2CAKjVq4rUELf8iXvmGoFl\n"
+	"000spua4MjHNUYm7LR0QaKesKrMyGZUesQJAL8aLdYPJI+SD9Tr/jqLtIkZ4frQe\n"
+	"eshw4pvsoyheiHF3zyshO791crAr4EVCx3sMlxB1xnmqLXPCPyCEHxO//QJBAIBY\n"
+	"IYkjDZJ6ofGIe1UyXJNvfdkPu9J+ut4wU5jjEcgs6mK62J6RGuFxhy2iOQfFMdjo\n"
+	"yL+OCUg7mDCun7uCxrECQAtSvnLOFMjO5qExRjFtwi+b1rcSekd3Osk/izyRFSzg\n"
+	"Or+AL56/EKfiogNnFipgaXIbb/xj785Cob6v96XoW1I=\n"
+	"-----END RSA PRIVATE KEY-----\n";
+
+class LayerTracker
+{
+public:
+	struct Item
+	{
+		int plain;
+		int encoded;
+	};
+
+	LayerTracker()
+	{
+		p = 0;
+	}
+
+	void reset()
+	{
+		p = 0;
+		list.clear();
+	}
+
+	void addPlain(int plain)
+	{
+		p += plain;
+	}
+
+	void specifyEncoded(int encoded, int plain)
+	{
+		// can't specify more bytes than we have
+		if(plain > p)
+			plain = p;
+		p -= plain;
+		Item i;
+		i.plain = plain;
+		i.encoded = encoded;
+		list += i;
+	}
+
+	int finished(int encoded)
+	{
+		int plain = 0;
+		for(TQValueList<Item>::Iterator it = list.begin(); it != list.end();) {
+			Item &i = *it;
+
+			// not enough?
+			if(encoded < i.encoded) {
+				i.encoded -= encoded;
+				break;
+			}
+
+			encoded -= i.encoded;
+			plain += i.plain;
+			it = list.remove(it);
+		}
+		return plain;
+	}
+
+	int p;
+	TQValueList<Item> list;
+};
+
+class SecureServerTest : public QServerSocket
+{
+	Q_OBJECT
+public:
+	enum { Idle, Handshaking, Active, Closing };
+
+	SecureServerTest(int _port) : QServerSocket(_port), port(_port)
+	{
+		sock = new TQSocket;
+		connect(sock, SIGNAL(readyRead()), SLOT(sock_readyRead()));
+		connect(sock, SIGNAL(connectionClosed()), SLOT(sock_connectionClosed()));
+		connect(sock, SIGNAL(error(int)), SLOT(sock_error(int)));
+		connect(sock, SIGNAL(bytesWritten(int)), SLOT(sock_bytesWritten(int)));
+
+		ssl = new QCA::TLS;
+		connect(ssl, SIGNAL(handshaken()), SLOT(ssl_handshaken()));
+		connect(ssl, SIGNAL(readyRead()), SLOT(ssl_readyRead()));
+		connect(ssl, SIGNAL(readyReadOutgoing(int)), SLOT(ssl_readyReadOutgoing(int)));
+		connect(ssl, SIGNAL(closed()), SLOT(ssl_closed()));
+		connect(ssl, SIGNAL(error(int)), SLOT(ssl_error(int)));
+
+		cert.fromPEM(pemdata_cert);
+		privkey.fromPEM(pemdata_privkey);
+
+		mode = Idle;
+	}
+
+	~SecureServerTest()
+	{
+		delete ssl;
+		delete sock;
+	}
+
+	void start()
+	{
+		if(cert.isNull() || privkey.isNull()) {
+			printf("Error loading cert and/or private key!\n");
+			TTQTimer::singleShot(0, this, SIGNAL(quit()));
+			return;
+		}
+		if(!ok()) {
+			printf("Error binding to port %d!\n", port);
+			TTQTimer::singleShot(0, this, SIGNAL(quit()));
+			return;
+		}
+		printf("Listening on port %d ...\n", port);
+	}
+
+	void newConnection(int s)
+	{
+		// Note: only 1 connection supported at a time in this example!
+		if(sock->isOpen()) {
+			TQSocket tmp;
+			tmp.setSocket(s);
+			printf("throwing away extra connection\n");
+			return;
+		}
+		mode = Handshaking;
+		sock->setSocket(s);
+		printf("Connection received!  Starting TLS handshake...\n");
+		ssl->setCertificate(cert, privkey);
+		ssl->startServer();
+	}
+
+signals:
+	void quit();
+
+private slots:
+	void sock_readyRead()
+	{
+		TQByteArray buf(sock->bytesAvailable());
+		int num = sock->readBlock(buf.data(), buf.size());
+		if(num < (int)buf.size())
+			buf.resize(num);
+		ssl->writeIncoming(buf);
+	}
+
+	void sock_connectionClosed()
+	{
+		printf("Connection closed.\n");
+	}
+
+	void sock_bytesWritten(int x)
+	{
+		if(mode == Active && sent) {
+			int bytes = layer.finished(x);
+			bytesLeft -= bytes;
+
+			if(bytesLeft == 0) {
+				mode = Closing;
+				printf("SSL shutdown\n");
+				ssl->close();
+			}
+		}
+	}
+
+	void sock_error(int)
+	{
+		printf("Socket error.\n");
+	}
+
+	void ssl_handshaken()
+	{
+		printf("Successful SSL handshake.  Waiting for newline.\n");
+		layer.reset();
+		bytesLeft = 0;
+		sent = false;
+		mode = Active;
+	}
+
+	void ssl_readyRead()
+	{
+		TQByteArray a = ssl->read();
+		TQString str =
+			"<html>\n"
+			"<head><title>Test</title></head>\n"
+			"<body>this is only a test</body>\n"
+			"</html>\n";
+		TQCString cs = str.latin1();
+		TQByteArray b(cs.length());
+		memcpy(b.data(), cs.data(), b.size());
+
+		printf("Sending test response...\n");
+		sent = true;
+		layer.addPlain(b.size());
+		ssl->write(b);
+	}
+
+	void ssl_readyReadOutgoing(int plainBytes)
+	{
+		TQByteArray a = ssl->readOutgoing();
+		layer.specifyEncoded(a.size(), plainBytes);
+		sock->writeBlock(a.data(), a.size());
+	}
+
+	void ssl_closed()
+	{
+		printf("Closing.\n");
+		sock->close();
+	}
+
+	void ssl_error(int x)
+	{
+		if(x == QCA::TLS::ErrHandshake) {
+			printf("SSL Handshake Error!  Closing.\n");
+			sock->close();
+		}
+		else {
+			printf("SSL Error!  Closing.\n");
+			sock->close();
+		}
+	}
+
+private:
+	int port;
+	TQSocket *sock;
+	QCA::TLS *ssl;
+	QCA::Cert cert;
+	QCA::RSAKey privkey;
+
+	bool sent;
+	int mode;
+	int bytesLeft;
+	LayerTracker layer;
+};
+
+#include"sslservtest.moc"
+
+int main(int argc, char **argv)
+{
+	TQApplication app(argc, argv, false);
+	int port = argc > 1 ? TQString(argv[1]).toInt() : 8000;
+
+	if(!QCA::isSupported(QCA::CAP_TLS)) {
+		printf("TLS not supported!\n");
+		return 1;
+	}
+
+	SecureServerTest *s = new SecureServerTest(port);
+	TQObject::connect(s, SIGNAL(quit()), &app, SLOT(quit()));
+	s->start();
+	app.exec();
+	delete s;
+
+	return 0;
+}
diff --git a/examples/sslservtest/sslservtest.pro b/examples/sslservtest/sslservtest.pro
new file mode 100644
index 0000000..028d5ab
--- /dev/null
+++ b/examples/sslservtest/sslservtest.pro
@@ -0,0 +1,6 @@
+TEMPLATE = app
+CONFIG += thread console
+TARGET = sslservtest
+
+SOURCES += sslservtest.cpp
+include(../examples.pri)
diff --git a/examples/ssltest/ssltest.cpp b/examples/ssltest/ssltest.cpp
new file mode 100644
index 0000000..f26f293
--- /dev/null
+++ b/examples/ssltest/ssltest.cpp
@@ -0,0 +1,276 @@
+#include<tqapplication.h>
+#include<tqdom.h>
+#include<tqfile.h>
+#include<tqsocket.h>
+#include<tqptrlist.h>
+#include"base64.h"
+#include"qca.h"
+
+TQCA::Cert readCertXml(const TQDomElement &e)
+{
+	TQCA::Cert cert;
+	// there should be one child data tag
+	TQDomElement data = e.elementsByTagName("data").item(0).toElement();
+	if(!data.isNull())
+		cert.fromDER(Base64::stringToArray(data.text()));
+	return cert;
+}
+
+void showCertInfo(const TQCA::Cert &cert)
+{
+	printf("-- Cert --\n");
+	printf(" CN: %s\n", cert.subject()["CN"].latin1());
+	printf(" Valid from: %s, until %s\n",
+		cert.notBefore().toString().latin1(),
+		cert.notAfter().toString().latin1());
+	printf(" PEM:\n%s\n", cert.toPEM().latin1());
+}
+
+TQPtrList<TQCA::Cert> getRootCerts(const TQString &store)
+{
+	TQPtrList<TQCA::Cert> list;
+
+	// open the Psi rootcerts file
+	TQFile f(store);
+	if(!f.open(IO_ReadOnly)) {
+		printf("unable to open %s\n", f.name().latin1());
+		return list;
+	}
+	TQDomDocument doc;
+	doc.setContent(&f);
+	f.close();
+
+	TQDomElement base = doc.documentElement();
+	if(base.tagName() != "store") {
+		printf("wrong format of %s\n", f.name().latin1());
+		return list;
+	}
+	TQDomNodeList cl = base.elementsByTagName("certificate");
+	if(cl.count() == 0) {
+		printf("no certs found in %s\n", f.name().latin1());
+		return list;
+	}
+
+	int num = 0;
+	for(int n = 0; n < (int)cl.count(); ++n) {
+		TQCA::Cert *cert = new TQCA::Cert(readCertXml(cl.item(n).toElement()));
+		if(cert->isNull()) {
+			printf("error reading cert\n");
+			delete cert;
+			continue;
+		}
+
+		++num;
+		list.append(cert);
+	}
+	printf("imported %d root certs\n", num);
+
+	return list;
+}
+
+TQString resultToString(int result)
+{
+	TQString s;
+	switch(result) {
+		case TQCA::TLS::NoCert:
+			s = TQObject::tr("No certificate presented.");
+			break;
+		case TQCA::TLS::Valid:
+			break;
+		case TQCA::TLS::HostMismatch:
+			s = TQObject::tr("Hostname mismatch.");
+			break;
+		case TQCA::TLS::Rejected:
+			s = TQObject::tr("Root CA rejects the specified purpose.");
+			break;
+		case TQCA::TLS::Untrusted:
+			s = TQObject::tr("Not trusted for the specified purpose.");
+			break;
+		case TQCA::TLS::SignatureFailed:
+			s = TQObject::tr("Invalid signature.");
+			break;
+		case TQCA::TLS::InvalidCA:
+			s = TQObject::tr("Invalid CA certificate.");
+			break;
+		case TQCA::TLS::InvalidPurpose:
+			s = TQObject::tr("Invalid certificate purpose.");
+			break;
+		case TQCA::TLS::SelfSigned:
+			s = TQObject::tr("Certificate is self-signed.");
+			break;
+		case TQCA::TLS::Revoked:
+			s = TQObject::tr("Certificate has been revoked.");
+			break;
+		case TQCA::TLS::PathLengthExceeded:
+			s = TQObject::tr("Maximum cert chain length exceeded.");
+			break;
+		case TQCA::TLS::Expired:
+			s = TQObject::tr("Certificate has expired.");
+			break;
+		case TQCA::TLS::Unknown:
+		default:
+			s = TQObject::tr("General validation error.");
+			break;
+	}
+	return s;
+}
+
+class SecureTest : public TQObject
+{
+	Q_OBJECT
+public:
+	SecureTest()
+	{
+		sock = new TQSocket;
+		connect(sock, SIGNAL(connected()), SLOT(sock_connected()));
+		connect(sock, SIGNAL(readyRead()), SLOT(sock_readyRead()));
+		connect(sock, SIGNAL(connectionClosed()), SLOT(sock_connectionClosed()));
+		connect(sock, SIGNAL(error(int)), SLOT(sock_error(int)));
+
+		ssl = new TQCA::TLS;
+		connect(ssl, SIGNAL(handshaken()), SLOT(ssl_handshaken()));
+		connect(ssl, SIGNAL(readyRead()), SLOT(ssl_readyRead()));
+		connect(ssl, SIGNAL(readyReadOutgoing(int)), SLOT(ssl_readyReadOutgoing(int)));
+		connect(ssl, SIGNAL(closed()), SLOT(ssl_closed()));
+		connect(ssl, SIGNAL(error(int)), SLOT(ssl_error(int)));
+
+		rootCerts.setAutoDelete(true);
+		rootCerts = getRootCerts("/usr/local/share/psi/certs/rootcert.xml");
+	}
+
+	~SecureTest()
+	{
+		delete ssl;
+		delete sock;
+	}
+
+	void start(const TQString &_host)
+	{
+		int n = _host.find(':');
+		int port;
+		if(n != -1) {
+			host = _host.mid(0, n);
+			port = _host.mid(n+1).toInt();
+		}
+		else {
+			host = _host;
+			port = 443;
+		}
+
+		printf("Trying %s:%d...\n", host.latin1(), port);
+		sock->connectToHost(host, port);
+	}
+
+signals:
+	void quit();
+
+private slots:
+	void sock_connected()
+	{
+		printf("Connected, starting TLS handshake...\n");
+		ssl->setCertificateStore(rootCerts);
+		ssl->startClient(host);
+	}
+
+	void sock_readyRead()
+	{
+		TQByteArray buf(sock->bytesAvailable());
+		int num = sock->readBlock(buf.data(), buf.size());
+		if(num < (int)buf.size())
+			buf.resize(num);
+		ssl->writeIncoming(buf);
+	}
+
+	void sock_connectionClosed()
+	{
+		printf("\nConnection closed.\n");
+		quit();
+	}
+
+	void sock_error(int)
+	{
+		printf("\nSocket error.\n");
+		quit();
+	}
+
+	void ssl_handshaken()
+	{
+		cert = ssl->peerCertificate();
+		int vr = ssl->certificateValidityResult();
+
+		printf("Successful SSL handshake.\n");
+		if(!cert.isNull())
+			showCertInfo(cert);
+		if(vr == TQCA::TLS::Valid)
+			printf("Valid certificate.\n");
+		else
+			printf("Invalid certificate: %s\n", resultToString(vr).latin1());
+
+		printf("Let's try a GET request now.\n");
+		TQString req = "GET / HTTP/1.0\nHost: " + host + "\n\n";
+		TQCString cs = req.latin1();
+		TQByteArray buf(cs.length());
+		memcpy(buf.data(), cs.data(), buf.size());
+		ssl->write(buf);
+	}
+
+	void ssl_readyRead()
+	{
+		TQByteArray a = ssl->read();
+		TQCString cs;
+		cs.resize(a.size()+1);
+		memcpy(cs.data(), a.data(), a.size());
+		printf("%s", cs.data());
+	}
+
+	void ssl_readyReadOutgoing(int)
+	{
+		TQByteArray a = ssl->readOutgoing();
+		sock->writeBlock(a.data(), a.size());
+	}
+
+	void ssl_closed()
+	{
+		printf("SSL session closed\n");
+	}
+
+	void ssl_error(int x)
+	{
+		if(x == TQCA::TLS::ErrHandshake) {
+			printf("SSL Handshake Error!\n");
+			quit();
+		}
+		else {
+			printf("SSL Error!\n");
+			quit();
+		}
+	}
+
+private:
+	TQString host;
+	TQSocket *sock;
+	TQCA::TLS *ssl;
+	TQCA::Cert cert;
+	TQPtrList<TQCA::Cert> rootCerts;
+};
+
+#include"ssltest.moc"
+
+int main(int argc, char **argv)
+{
+	TQApplication app(argc, argv, false);
+	TQString host = argc > 1 ? argv[1] : "andbit.net";
+
+	if(!TQCA::isSupported(TQCA::CAP_TLS)) {
+		printf("TLS not supported!\n");
+		return 1;
+	}
+
+	SecureTest *s = new SecureTest;
+	TQObject::connect(s, SIGNAL(quit()), &app, SLOT(quit()));
+	s->start(host);
+	app.exec();
+	delete s;
+
+	return 0;
+}
diff --git a/examples/ssltest/ssltest.pro b/examples/ssltest/ssltest.pro
new file mode 100644
index 0000000..44ae325
--- /dev/null
+++ b/examples/ssltest/ssltest.pro
@@ -0,0 +1,8 @@
+TEMPLATE = app
+CONFIG += thread console
+TARGET = ssltest
+
+INCLUDEPATH += ../common
+HEADERS += ../common/base64.h
+SOURCES += ../common/base64.cpp ssltest.cpp
+include(../examples.pri)
diff --git a/qca.pro b/qca.pro
new file mode 100644
index 0000000..1aa5c87
--- /dev/null
+++ b/qca.pro
@@ -0,0 +1,33 @@
+# qca qmake profile
+
+TEMPLATE = lib
+CONFIG += qt thread release
+TARGET = qca
+
+MOC_DIR        = .moc
+OBJECTS_DIR    = .obj
+UI_DIR         = .ui
+
+VER_MAJ = 1
+VER_MIN = 0
+
+# make DLL
+win32:{
+	CONFIG += dll
+	DEFINES += QCA_MAKEDLL
+}
+
+QCA_CPP = src
+INCLUDEPATH += $$QCA_CPP
+INCLUDEPATH += /usr/include/tqt
+
+HEADERS += \
+	$$QCA_CPP/qca.h \
+	$$QCA_CPP/qcaprovider.h
+
+SOURCES += \
+	$$QCA_CPP/qca.cpp
+
+include(conf.pri)
+include(extra.pri)
+
diff --git a/qca.qc b/qca.qc
new file mode 100644
index 0000000..cbe4cae
--- /dev/null
+++ b/qca.qc
@@ -0,0 +1,5 @@
+<qconf>
+ <name>Qt Cryptographic Architecture (QCA)</name>
+ <profile>qca.pro</profile>
+ <nobindir/>
+</qconf>
diff --git a/qcextra b/qcextra
new file mode 100755
index 0000000..c02ba66
--- /dev/null
+++ b/qcextra
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+cat >extra.pri <<EOT
+target.path=$PREFIX/lib
+INSTALLS += target
+
+incfiles.path=$PREFIX/include
+incfiles.files=src/qca.h
+INSTALLS += incfiles
+
+INSTALL_ROOT = $PREFIX
+
+EOT
diff --git a/src/qca.cpp b/src/qca.cpp
new file mode 100644
index 0000000..7db8379
--- /dev/null
+++ b/src/qca.cpp
@@ -0,0 +1,1479 @@
+/*
+ * qca.cpp - Qt Cryptographic Architecture
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include"qca.h"
+
+#include<tqptrlist.h>
+#include<tqdir.h>
+#include<tqfileinfo.h>
+#include<tqstringlist.h>
+#include<tqlibrary.h>
+#include<tqtimer.h>
+#include<tqhostaddress.h>
+#include<tqapplication.h>
+#include<tqguardedptr.h>
+#include<stdlib.h>
+#include"qcaprovider.h"
+
+#if defined(Q_OS_WIN32)
+#define PLUGIN_EXT "dll"
+#elif defined(Q_OS_MAC)
+#define PLUGIN_EXT "dylib"
+#else
+#define PLUGIN_EXT "so"
+#endif
+
+using namespace TQCA;
+
+class ProviderItem
+{
+public:
+	TQCAProvider *p;
+	TQString fname;
+
+	static ProviderItem *load(const TQString &fname)
+	{
+		TQLibrary *lib = new TQLibrary(fname);
+		if(!lib->load()) {
+			delete lib;
+			return 0;
+		}
+		void *s = lib->resolve("createProvider");
+		if(!s) {
+			delete lib;
+			return 0;
+		}
+		TQCAProvider *(*createProvider)() = (TQCAProvider *(*)())s;
+		TQCAProvider *p = createProvider();
+		if(!p) {
+			delete lib;
+			return 0;
+		}
+		ProviderItem *i = new ProviderItem(lib, p);
+		i->fname = fname;
+		return i;
+	}
+
+	static ProviderItem *fromClass(TQCAProvider *p)
+	{
+		ProviderItem *i = new ProviderItem(0, p);
+		return i;
+	}
+
+	~ProviderItem()
+	{
+		delete p;
+		delete lib;
+	}
+
+	void ensureInit()
+	{
+		if(init_done)
+			return;
+		init_done = true;
+		p->init();
+	}
+
+private:
+	TQLibrary *lib;
+	bool init_done;
+
+	ProviderItem(TQLibrary *_lib, TQCAProvider *_p)
+	{
+		lib = _lib;
+		p = _p;
+		init_done = false;
+	}
+};
+
+static TQPtrList<ProviderItem> providerList;
+static bool qca_init = false;
+
+static bool plugin_have(const TQString &fname)
+{
+	TQPtrListIterator<ProviderItem> it(providerList);
+	for(ProviderItem *i; (i = it.current()); ++it) {
+		if(i->fname == fname)
+			return true;
+	}
+	return false;
+}
+
+static void plugin_scan()
+{
+	TQStringList dirs = TQApplication::libraryPaths();
+	for(TQStringList::ConstIterator it = dirs.begin(); it != dirs.end(); ++it) {
+		TQDir libpath(*it);
+		TQDir dir(libpath.filePath("crypto"));
+		if(!dir.exists())
+			continue;
+
+		TQStringList list = dir.entryList();
+		for(TQStringList::ConstIterator it = list.begin(); it != list.end(); ++it) {
+			TQFileInfo fi(dir.filePath(*it));
+			if(fi.isDir())
+				continue;
+			if(fi.extension() != PLUGIN_EXT)
+				continue;
+			TQString fname = fi.filePath();
+
+			// don't load the same plugin again!
+			if(plugin_have(fname))
+				continue;
+			//printf("f=[%s]\n", fname.latin1());
+
+			ProviderItem *i = ProviderItem::load(fname);
+			if(!i)
+				continue;
+			if(i->p->qcaVersion() != TQCA_PLUGIN_VERSION) {
+				delete i;
+				continue;
+			}
+
+			providerList.append(i);
+		}
+	}
+}
+
+static void plugin_addClass(TQCAProvider *p)
+{
+	ProviderItem *i = ProviderItem::fromClass(p);
+	providerList.prepend(i);
+}
+
+static void plugin_unloadall()
+{
+	providerList.clear();
+}
+
+static int plugin_caps()
+{
+	int caps = 0;
+	TQPtrListIterator<ProviderItem> it(providerList);
+	for(ProviderItem *i; (i = it.current()); ++it)
+		caps |= i->p->capabilities();
+	return caps;
+}
+
+TQString TQCA::arrayToHex(const TQByteArray &a)
+{
+	TQString out;
+	for(int n = 0; n < (int)a.size(); ++n) {
+		TQString str;
+		str.sprintf("%02x", (uchar)a[n]);
+		out.append(str);
+	}
+	return out;
+}
+
+TQByteArray TQCA::hexToArray(const TQString &str)
+{
+	TQByteArray out(str.length() / 2);
+	int at = 0;
+	for(int n = 0; n + 1 < (int)str.length(); n += 2) {
+		uchar a = str[n];
+		uchar b = str[n+1];
+		uchar c = ((a & 0x0f) << 4) + (b & 0x0f);
+		out[at++] = c;
+	}
+	return out;
+}
+
+void TQCA::init()
+{
+	if(qca_init)
+		return;
+	qca_init = true;
+	providerList.setAutoDelete(true);
+}
+
+bool TQCA::isSupported(int capabilities)
+{
+	init();
+
+	int caps = plugin_caps();
+	if(caps & capabilities)
+		return true;
+
+	// ok, try scanning for new stuff
+	plugin_scan();
+	caps = plugin_caps();
+	if(caps & capabilities)
+		return true;
+
+	return false;
+}
+
+void TQCA::insertProvider(TQCAProvider *p)
+{
+	plugin_addClass(p);
+}
+
+void TQCA::unloadAllPlugins()
+{
+	plugin_unloadall();
+}
+
+static void *getContext(int cap)
+{
+	init();
+
+	// this call will also trip a scan for new plugins if needed
+	if(!TQCA::isSupported(cap))
+		return 0;
+
+	TQPtrListIterator<ProviderItem> it(providerList);
+	for(ProviderItem *i; (i = it.current()); ++it) {
+		if(i->p->capabilities() & cap) {
+			i->ensureInit();
+			return i->p->context(cap);
+		}
+	}
+	return 0;
+}
+
+
+//----------------------------------------------------------------------------
+// Hash
+//----------------------------------------------------------------------------
+class Hash::Private
+{
+public:
+	Private()
+	{
+		c = 0;
+	}
+
+	~Private()
+	{
+		delete c;
+	}
+
+	void reset()
+	{
+		c->reset();
+	}
+
+	TQCA_HashContext *c;
+};
+
+Hash::Hash(TQCA_HashContext *c)
+{
+	d = new Private;
+	d->c = c;
+}
+
+Hash::Hash(const Hash &from)
+{
+	d = new Private;
+	*this = from;
+}
+
+Hash & Hash::operator=(const Hash &from)
+{
+	delete d->c;
+	d->c = from.d->c->clone();
+	return *this;
+}
+
+Hash::~Hash()
+{
+	delete d;
+}
+
+void Hash::clear()
+{
+	d->reset();
+}
+
+void Hash::update(const TQByteArray &a)
+{
+	d->c->update(a.data(), a.size());
+}
+
+TQByteArray Hash::final()
+{
+	TQByteArray buf;
+	d->c->final(&buf);
+	return buf;
+}
+
+
+//----------------------------------------------------------------------------
+// Cipher
+//----------------------------------------------------------------------------
+class Cipher::Private
+{
+public:
+	Private()
+	{
+		c = 0;
+	}
+
+	~Private()
+	{
+		delete c;
+	}
+
+	void reset()
+	{
+		dir = Encrypt;
+		key.resize(0);
+		iv.resize(0);
+		err = false;
+	}
+
+	TQCA_CipherContext *c;
+	int dir;
+	int mode;
+	TQByteArray key, iv;
+	bool err;
+};
+
+Cipher::Cipher(TQCA_CipherContext *c, int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad)
+{
+	d = new Private;
+	d->c = c;
+	reset(dir, mode, key, iv, pad);
+}
+
+Cipher::Cipher(const Cipher &from)
+{
+	d = new Private;
+	*this = from;
+}
+
+Cipher & Cipher::operator=(const Cipher &from)
+{
+	delete d->c;
+	d->c = from.d->c->clone();
+	d->dir = from.d->dir;
+	d->mode = from.d->mode;
+	d->key = from.d->key.copy();
+	d->iv = from.d->iv.copy();
+	d->err = from.d->err;
+	return *this;
+}
+
+Cipher::~Cipher()
+{
+	delete d;
+}
+
+TQByteArray Cipher::dyn_generateKey(int size) const
+{
+	TQByteArray buf;
+	if(size != -1)
+		buf.resize(size);
+	else
+		buf.resize(d->c->keySize());
+	if(!d->c->generateKey(buf.data(), size))
+		return TQByteArray();
+	return buf;
+}
+
+TQByteArray Cipher::dyn_generateIV() const
+{
+	TQByteArray buf(d->c->blockSize());
+	if(!d->c->generateIV(buf.data()))
+		return TQByteArray();
+	return buf;
+}
+
+void Cipher::reset(int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad)
+{
+	d->reset();
+
+	d->dir = dir;
+	d->mode = mode;
+	d->key = key.copy();
+	d->iv = iv.copy();
+	if(!d->c->setup(d->dir, d->mode, d->key.isEmpty() ? 0: d->key.data(), d->key.size(), d->iv.isEmpty() ? 0 : d->iv.data(), pad)) {
+		d->err = true;
+		return;
+	}
+}
+
+bool Cipher::update(const TQByteArray &a)
+{
+	if(d->err)
+		return false;
+
+	if(!a.isEmpty()) {
+		if(!d->c->update(a.data(), a.size())) {
+			d->err = true;
+			return false;
+		}
+	}
+	return true;
+}
+
+TQByteArray Cipher::final(bool *ok)
+{
+	if(ok)
+		*ok = false;
+	if(d->err)
+		return TQByteArray();
+
+	TQByteArray out;
+	if(!d->c->final(&out)) {
+		d->err = true;
+		return TQByteArray();
+	}
+	if(ok)
+		*ok = true;
+	return out;
+}
+
+
+//----------------------------------------------------------------------------
+// SHA1
+//----------------------------------------------------------------------------
+SHA1::SHA1()
+:Hash((TQCA_HashContext *)getContext(CAP_SHA1))
+{
+}
+
+
+//----------------------------------------------------------------------------
+// SHA256
+//----------------------------------------------------------------------------
+SHA256::SHA256()
+:Hash((TQCA_HashContext *)getContext(CAP_SHA256))
+{
+}
+
+
+//----------------------------------------------------------------------------
+// MD5
+//----------------------------------------------------------------------------
+MD5::MD5()
+:Hash((TQCA_HashContext *)getContext(CAP_MD5))
+{
+}
+
+
+//----------------------------------------------------------------------------
+// BlowFish
+//----------------------------------------------------------------------------
+BlowFish::BlowFish(int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad)
+:Cipher((TQCA_CipherContext *)getContext(CAP_BlowFish), dir, mode, key, iv, pad)
+{
+}
+
+
+//----------------------------------------------------------------------------
+// TripleDES
+//----------------------------------------------------------------------------
+TripleDES::TripleDES(int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad)
+:Cipher((TQCA_CipherContext *)getContext(CAP_TripleDES), dir, mode, key, iv, pad)
+{
+}
+
+
+//----------------------------------------------------------------------------
+// AES128
+//----------------------------------------------------------------------------
+AES128::AES128(int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad)
+:Cipher((TQCA_CipherContext *)getContext(CAP_AES128), dir, mode, key, iv, pad)
+{
+}
+
+
+//----------------------------------------------------------------------------
+// AES256
+//----------------------------------------------------------------------------
+AES256::AES256(int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad)
+:Cipher((TQCA_CipherContext *)getContext(CAP_AES256), dir, mode, key, iv, pad)
+{
+}
+
+
+//----------------------------------------------------------------------------
+// RSAKey
+//----------------------------------------------------------------------------
+class RSAKey::Private
+{
+public:
+	Private()
+	{
+		c = 0;
+	}
+
+	~Private()
+	{
+		delete c;
+	}
+
+	TQCA_RSAKeyContext *c;
+};
+
+RSAKey::RSAKey()
+{
+	d = new Private;
+	d->c = (TQCA_RSAKeyContext *)getContext(CAP_RSA);
+}
+
+RSAKey::RSAKey(const RSAKey &from)
+{
+	d = new Private;
+	*this = from;
+}
+
+RSAKey & RSAKey::operator=(const RSAKey &from)
+{
+	delete d->c;
+	d->c = from.d->c->clone();
+	return *this;
+}
+
+RSAKey::~RSAKey()
+{
+	delete d;
+}
+
+bool RSAKey::isNull() const
+{
+	return d->c->isNull();
+}
+
+bool RSAKey::havePublic() const
+{
+	return d->c->havePublic();
+}
+
+bool RSAKey::havePrivate() const
+{
+	return d->c->havePrivate();
+}
+
+TQByteArray RSAKey::toDER(bool publicOnly) const
+{
+	TQByteArray out;
+	if(!d->c->toDER(&out, publicOnly))
+		return TQByteArray();
+	return out;
+}
+
+bool RSAKey::fromDER(const TQByteArray &a)
+{
+	return d->c->createFromDER(a.data(), a.size());
+}
+
+TQString RSAKey::toPEM(bool publicOnly) const
+{
+	TQByteArray out;
+	if(!d->c->toPEM(&out, publicOnly))
+		return TQByteArray();
+
+	TQCString cs;
+	cs.resize(out.size()+1);
+	memcpy(cs.data(), out.data(), out.size());
+	return TQString::fromLatin1(cs);
+}
+
+bool RSAKey::fromPEM(const TQString &str)
+{
+	TQCString cs = str.latin1();
+	TQByteArray a(cs.length());
+	memcpy(a.data(), cs.data(), a.size());
+	return d->c->createFromPEM(a.data(), a.size());
+}
+
+bool RSAKey::fromNative(void *p)
+{
+	return d->c->createFromNative(p);
+}
+
+bool RSAKey::encrypt(const TQByteArray &a, TQByteArray *b, bool oaep) const
+{
+	TQByteArray out;
+	if(!d->c->encrypt(a, &out, oaep))
+		return false;
+	*b = out;
+	return true;
+}
+
+bool RSAKey::decrypt(const TQByteArray &a, TQByteArray *b, bool oaep) const
+{
+	TQByteArray out;
+	if(!d->c->decrypt(a, &out, oaep))
+		return false;
+	*b = out;
+	return true;
+}
+
+bool RSAKey::generate(unsigned int bits)
+{
+	return d->c->generate(bits);
+}
+
+
+//----------------------------------------------------------------------------
+// RSA
+//----------------------------------------------------------------------------
+RSA::RSA()
+{
+}
+
+RSA::~RSA()
+{
+}
+
+RSAKey RSA::key() const
+{
+	return v_key;
+}
+
+void RSA::setKey(const RSAKey &k)
+{
+	v_key = k;
+}
+
+bool RSA::encrypt(const TQByteArray &a, TQByteArray *b, bool oaep) const
+{
+	if(v_key.isNull())
+		return false;
+	return v_key.encrypt(a, b, oaep);
+}
+
+bool RSA::decrypt(const TQByteArray &a, TQByteArray *b, bool oaep) const
+{
+	if(v_key.isNull())
+		return false;
+	return v_key.decrypt(a, b, oaep);
+}
+
+RSAKey RSA::generateKey(unsigned int bits)
+{
+	RSAKey k;
+	k.generate(bits);
+	return k;
+}
+
+
+//----------------------------------------------------------------------------
+// Cert
+//----------------------------------------------------------------------------
+class Cert::Private
+{
+public:
+	Private()
+	{
+		c = 0;
+	}
+
+	~Private()
+	{
+		delete c;
+	}
+
+	TQCA_CertContext *c;
+};
+
+Cert::Cert()
+{
+	d = new Private;
+	d->c = (TQCA_CertContext *)getContext(CAP_X509);
+}
+
+Cert::Cert(const Cert &from)
+{
+	d = new Private;
+	*this = from;
+}
+
+Cert & Cert::operator=(const Cert &from)
+{
+	delete d->c;
+	d->c = from.d->c->clone();
+	return *this;
+}
+
+Cert::~Cert()
+{
+	delete d;
+}
+
+void Cert::fromContext(TQCA_CertContext *ctx)
+{
+	delete d->c;
+	d->c = ctx;
+}
+
+bool Cert::isNull() const
+{
+	return d->c->isNull();
+}
+
+TQString Cert::commonName() const
+{
+	CertProperties props = subject();
+	return props["CN"];
+}
+
+TQString Cert::serialNumber() const
+{
+	return d->c->serialNumber();
+}
+
+TQString Cert::subjectString() const
+{
+	return d->c->subjectString();
+}
+
+TQString Cert::issuerString() const
+{
+	return d->c->issuerString();
+}
+
+CertProperties Cert::subject() const
+{
+	TQValueList<TQCA_CertProperty> list = d->c->subject();
+	CertProperties props;
+	for(TQValueList<TQCA_CertProperty>::ConstIterator it = list.begin(); it != list.end(); ++it)
+		props[(*it).var] = (*it).val;
+	return props;
+}
+
+CertProperties Cert::issuer() const
+{
+	TQValueList<TQCA_CertProperty> list = d->c->issuer();
+	CertProperties props;
+	for(TQValueList<TQCA_CertProperty>::ConstIterator it = list.begin(); it != list.end(); ++it)
+		props[(*it).var] = (*it).val;
+	return props;
+}
+
+TQDateTime Cert::notBefore() const
+{
+	return d->c->notBefore();
+}
+
+TQDateTime Cert::notAfter() const
+{
+	return d->c->notAfter();
+}
+
+TQByteArray Cert::toDER() const
+{
+	TQByteArray out;
+	if(!d->c->toDER(&out))
+		return TQByteArray();
+	return out;
+}
+
+bool Cert::fromDER(const TQByteArray &a)
+{
+	return d->c->createFromDER(a.data(), a.size());
+}
+
+TQString Cert::toPEM() const
+{
+	TQByteArray out;
+	if(!d->c->toPEM(&out))
+		return TQByteArray();
+
+	TQCString cs;
+	cs.resize(out.size()+1);
+	memcpy(cs.data(), out.data(), out.size());
+	return TQString::fromLatin1(cs);
+}
+
+bool Cert::fromPEM(const TQString &str)
+{
+	TQCString cs = str.latin1();
+	TQByteArray a(cs.length());
+	memcpy(a.data(), cs.data(), a.size());
+	return d->c->createFromPEM(a.data(), a.size());
+}
+
+
+//----------------------------------------------------------------------------
+// TLS
+//----------------------------------------------------------------------------
+class TLS::Private
+{
+public:
+	Private()
+	{
+		c = (TQCA_TLSContext *)getContext(CAP_TLS);
+	}
+
+	~Private()
+	{
+		delete c;
+	}
+
+	void reset()
+	{
+		handshaken = false;
+		closing = false;
+		in.resize(0);
+		out.resize(0);
+		from_net.resize(0);
+		to_net.resize(0);
+		host = "";
+		hostMismatch = false;
+		cert = Cert();
+		bytesEncoded = 0;
+		tryMore = false;
+	}
+
+	void appendArray(TQByteArray *a, const TQByteArray &b)
+	{
+		int oldsize = a->size();
+		a->resize(oldsize + b.size());
+		memcpy(a->data() + oldsize, b.data(), b.size());
+	}
+
+	Cert cert;
+	TQCA_TLSContext *c;
+	TQByteArray in, out, to_net, from_net;
+	int bytesEncoded;
+	bool tryMore;
+	bool handshaken;
+	TQString host;
+	bool hostMismatch;
+	bool closing;
+
+	Cert ourCert;
+	RSAKey ourKey;
+	TQPtrList<TQCA_CertContext> store;
+};
+
+TLS::TLS(TQObject *parent)
+:TQObject(parent)
+{
+	d = new Private;
+}
+
+TLS::~TLS()
+{
+	delete d;
+}
+
+void TLS::setCertificate(const Cert &cert, const RSAKey &key)
+{
+	d->ourCert = cert;
+	d->ourKey = key;
+}
+
+void TLS::setCertificateStore(const TQPtrList<Cert> &store)
+{
+	// convert the cert list into a context list
+	d->store.clear();
+	TQPtrListIterator<Cert> it(store);
+	for(Cert *cert; (cert = it.current()); ++it)
+		d->store.append(cert->d->c);
+}
+
+void TLS::reset()
+{
+	d->reset();
+}
+
+bool TLS::startClient(const TQString &host)
+{
+	d->reset();
+	d->host = host;
+
+	if(!d->c->startClient(d->store, *d->ourCert.d->c, *d->ourKey.d->c))
+		return false;
+	TQTimer::singleShot(0, this, SLOT(update()));
+	return true;
+}
+
+bool TLS::startServer()
+{
+	d->reset();
+
+	if(!d->c->startServer(d->store, *d->ourCert.d->c, *d->ourKey.d->c))
+		return false;
+	TQTimer::singleShot(0, this, SLOT(update()));
+	return true;
+}
+
+void TLS::close()
+{
+	if(!d->handshaken || d->closing)
+		return;
+
+	d->closing = true;
+	TQTimer::singleShot(0, this, SLOT(update()));
+}
+
+bool TLS::isHandshaken() const
+{
+	return d->handshaken;
+}
+
+void TLS::write(const TQByteArray &a)
+{
+	d->appendArray(&d->out, a);
+	update();
+}
+
+TQByteArray TLS::read()
+{
+	TQByteArray a = d->in.copy();
+	d->in.resize(0);
+	return a;
+}
+
+void TLS::writeIncoming(const TQByteArray &a)
+{
+	d->appendArray(&d->from_net, a);
+	update();
+}
+
+TQByteArray TLS::readOutgoing()
+{
+	TQByteArray a = d->to_net.copy();
+	d->to_net.resize(0);
+	return a;
+}
+
+TQByteArray TLS::readUnprocessed()
+{
+	TQByteArray a = d->from_net.copy();
+	d->from_net.resize(0);
+	return a;
+}
+
+const Cert & TLS::peerCertificate() const
+{
+	return d->cert;
+}
+
+int TLS::certificateValidityResult() const
+{
+	if(d->hostMismatch)
+		return TQCA::TLS::HostMismatch;
+	else
+		return d->c->validityResult();
+}
+
+void TLS::update()
+{
+	bool force_read = false;
+	bool eof = false;
+	bool done = false;
+	TQGuardedPtr<TLS> self = this;
+
+	if(d->closing) {
+		TQByteArray a;
+		int r = d->c->shutdown(d->from_net, &a);
+		d->from_net.resize(0);
+		if(r == TQCA_TLSContext::Error) {
+			reset();
+			error(ErrHandshake);
+			return;
+		}
+		if(r == TQCA_TLSContext::Success) {
+			d->from_net = d->c->unprocessed().copy();
+			done = true;
+		}
+		d->appendArray(&d->to_net, a);
+	}
+	else {
+		if(!d->handshaken) {
+			TQByteArray a;
+			int r = d->c->handshake(d->from_net, &a);
+			d->from_net.resize(0);
+			if(r == TQCA_TLSContext::Error) {
+				reset();
+				error(ErrHandshake);
+				return;
+			}
+			d->appendArray(&d->to_net, a);
+			if(r == TQCA_TLSContext::Success) {
+				TQCA_CertContext *cc = d->c->peerCertificate();
+				if(cc && !d->host.isEmpty() && d->c->validityResult() == TQCA::TLS::Valid) {
+					if(!cc->matchesAddress(d->host))
+						d->hostMismatch = true;
+				}
+				d->cert.fromContext(cc);
+				d->handshaken = true;
+				handshaken();
+				if(!self)
+					return;
+
+				// there is a teeny tiny possibility that incoming data awaits.  let us get it.
+				force_read = true;
+			}
+		}
+
+		if(d->handshaken) {
+			if(!d->out.isEmpty() || d->tryMore) {
+				d->tryMore = false;
+				TQByteArray a;
+				int enc;
+				bool more = false;
+				bool ok = d->c->encode(d->out, &a, &enc);
+				eof = d->c->eof();
+				if(ok && enc < (int)d->out.size())
+					more = true;
+				d->out.resize(0);
+				if(!eof) {
+					if(!ok) {
+						reset();
+						error(ErrCrypt);
+						return;
+					}
+					d->bytesEncoded += enc;
+					if(more)
+						d->tryMore = true;
+					d->appendArray(&d->to_net, a);
+				}
+			}
+			if(!d->from_net.isEmpty() || force_read) {
+				TQByteArray a, b;
+				bool ok = d->c->decode(d->from_net, &a, &b);
+				eof = d->c->eof();
+				d->from_net.resize(0);
+				if(!ok) {
+					reset();
+					error(ErrCrypt);
+					return;
+				}
+				d->appendArray(&d->in, a);
+				d->appendArray(&d->to_net, b);
+			}
+
+			if(!d->in.isEmpty()) {
+				readyRead();
+				if(!self)
+					return;
+			}
+		}
+	}
+
+	if(!d->to_net.isEmpty()) {
+		int bytes = d->bytesEncoded;
+		d->bytesEncoded = 0;
+		readyReadOutgoing(bytes);
+		if(!self)
+			return;
+	}
+
+	if(eof) {
+		close();
+		if(!self)
+			return;
+		return;
+	}
+
+	if(d->closing && done) {
+		reset();
+		closed();
+	}
+}
+
+
+//----------------------------------------------------------------------------
+// SASL
+//----------------------------------------------------------------------------
+TQString saslappname = "qca";
+class SASL::Private
+{
+public:
+	Private()
+	{
+		c = (TQCA_SASLContext *)getContext(CAP_SASL);
+	}
+
+	~Private()
+	{
+		delete c;
+	}
+
+	void setSecurityProps()
+	{
+		c->setSecurityProps(noPlain, noActive, noDict, noAnon, reqForward, reqCreds, reqMutual, ssfmin, ssfmax, ext_authid, ext_ssf);
+	}
+
+	// security opts
+	bool noPlain, noActive, noDict, noAnon, reqForward, reqCreds, reqMutual;
+	int ssfmin, ssfmax;
+	TQString ext_authid;
+	int ext_ssf;
+
+	bool tried;
+	TQCA_SASLContext *c;
+	TQHostAddress localAddr, remoteAddr;
+	int localPort, remotePort;
+	TQByteArray stepData;
+	bool allowCSF;
+	bool first, server;
+
+	TQByteArray inbuf, outbuf;
+};
+
+SASL::SASL(TQObject *parent)
+:TQObject(parent)
+{
+	d = new Private;
+	reset();
+}
+
+SASL::~SASL()
+{
+	delete d;
+}
+
+void SASL::setAppName(const TQString &name)
+{
+	saslappname = name;
+}
+
+void SASL::reset()
+{
+	d->localPort = -1;
+	d->remotePort = -1;
+
+	d->noPlain = false;
+	d->noActive = false;
+	d->noDict = false;
+	d->noAnon = false;
+	d->reqForward = false;
+	d->reqCreds = false;
+	d->reqMutual = false;
+	d->ssfmin = 0;
+	d->ssfmax = 0;
+	d->ext_authid = "";
+	d->ext_ssf = 0;
+
+	d->inbuf.resize(0);
+	d->outbuf.resize(0);
+
+	d->c->reset();
+}
+
+int SASL::errorCondition() const
+{
+	return d->c->errorCond();
+}
+
+void SASL::setAllowPlain(bool b)
+{
+	d->noPlain = !b;
+}
+
+void SASL::setAllowAnonymous(bool b)
+{
+	d->noAnon = !b;
+}
+
+void SASL::setAllowActiveVulnerable(bool b)
+{
+	d->noActive = !b;
+}
+
+void SASL::setAllowDictionaryVulnerable(bool b)
+{
+	d->noDict = !b;
+}
+
+void SASL::setRequireForwardSecrecy(bool b)
+{
+	d->reqForward = b;
+}
+
+void SASL::setRequirePassCredentials(bool b)
+{
+	d->reqCreds = b;
+}
+
+void SASL::setRequireMutualAuth(bool b)
+{
+	d->reqMutual = b;
+}
+
+void SASL::setMinimumSSF(int x)
+{
+	d->ssfmin = x;
+}
+
+void SASL::setMaximumSSF(int x)
+{
+	d->ssfmax = x;
+}
+
+void SASL::setExternalAuthID(const TQString &authid)
+{
+	d->ext_authid = authid;
+}
+
+void SASL::setExternalSSF(int x)
+{
+	d->ext_ssf = x;
+}
+
+void SASL::setLocalAddr(const TQHostAddress &addr, Q_UINT16 port)
+{
+	d->localAddr = addr;
+	d->localPort = port;
+}
+
+void SASL::setRemoteAddr(const TQHostAddress &addr, Q_UINT16 port)
+{
+	d->remoteAddr = addr;
+	d->remotePort = port;
+}
+
+bool SASL::startClient(const TQString &service, const TQString &host, const TQStringList &mechlist, bool allowClientSendFirst)
+{
+	TQCA_SASLHostPort la, ra;
+	if(d->localPort != -1) {
+		la.addr = d->localAddr;
+		la.port = d->localPort;
+	}
+	if(d->remotePort != -1) {
+		ra.addr = d->remoteAddr;
+		ra.port = d->remotePort;
+	}
+
+	d->allowCSF = allowClientSendFirst;
+	d->c->setCoreProps(service, host, d->localPort != -1 ? &la : 0, d->remotePort != -1 ? &ra : 0);
+	d->setSecurityProps();
+
+	if(!d->c->clientStart(mechlist))
+		return false;
+	d->first = true;
+	d->server = false;
+	d->tried = false;
+	TQTimer::singleShot(0, this, SLOT(tryAgain()));
+	return true;
+}
+
+bool SASL::startServer(const TQString &service, const TQString &host, const TQString &realm, TQStringList *mechlist)
+{
+	TQCA_SASLHostPort la, ra;
+	if(d->localPort != -1) {
+		la.addr = d->localAddr;
+		la.port = d->localPort;
+	}
+	if(d->remotePort != -1) {
+		ra.addr = d->remoteAddr;
+		ra.port = d->remotePort;
+	}
+
+	d->c->setCoreProps(service, host, d->localPort != -1 ? &la : 0, d->remotePort != -1 ? &ra : 0);
+	d->setSecurityProps();
+
+	if(!d->c->serverStart(realm, mechlist, saslappname))
+		return false;
+	d->first = true;
+	d->server = true;
+	d->tried = false;
+	return true;
+}
+
+void SASL::putServerFirstStep(const TQString &mech)
+{
+	int r = d->c->serverFirstStep(mech, 0);
+	handleServerFirstStep(r);
+}
+
+void SASL::putServerFirstStep(const TQString &mech, const TQByteArray &clientInit)
+{
+	int r = d->c->serverFirstStep(mech, &clientInit);
+	handleServerFirstStep(r);
+}
+
+void SASL::handleServerFirstStep(int r)
+{
+	if(r == TQCA_SASLContext::Success)
+		authenticated();
+	else if(r == TQCA_SASLContext::Continue)
+		nextStep(d->c->result());
+	else if(r == TQCA_SASLContext::AuthCheck)
+		tryAgain();
+	else
+		error(ErrAuth);
+}
+
+void SASL::putStep(const TQByteArray &stepData)
+{
+	d->stepData = stepData.copy();
+	tryAgain();
+}
+
+void SASL::setUsername(const TQString &user)
+{
+	d->c->setClientParams(&user, 0, 0, 0);
+}
+
+void SASL::setAuthzid(const TQString &authzid)
+{
+	d->c->setClientParams(0, &authzid, 0, 0);
+}
+
+void SASL::setPassword(const TQString &pass)
+{
+	d->c->setClientParams(0, 0, &pass, 0);
+}
+
+void SASL::setRealm(const TQString &realm)
+{
+	d->c->setClientParams(0, 0, 0, &realm);
+}
+
+void SASL::continueAfterParams()
+{
+	tryAgain();
+}
+
+void SASL::continueAfterAuthCheck()
+{
+	tryAgain();
+}
+
+void SASL::tryAgain()
+{
+	int r;
+
+	if(d->server) {
+		if(!d->tried) {
+			r = d->c->nextStep(d->stepData);
+			d->tried = true;
+		}
+		else {
+			r = d->c->tryAgain();
+		}
+
+		if(r == TQCA_SASLContext::Error) {
+			error(ErrAuth);
+			return;
+		}
+		else if(r == TQCA_SASLContext::Continue) {
+			d->tried = false;
+			nextStep(d->c->result());
+			return;
+		}
+		else if(r == TQCA_SASLContext::AuthCheck) {
+			authCheck(d->c->username(), d->c->authzid());
+			return;
+		}
+	}
+	else {
+		if(d->first) {
+			if(!d->tried) {
+				r = d->c->clientFirstStep(d->allowCSF);
+				d->tried = true;
+			}
+			else
+				r = d->c->tryAgain();
+
+			if(r == TQCA_SASLContext::Error) {
+				error(ErrAuth);
+				return;
+			}
+			else if(r == TQCA_SASLContext::NeedParams) {
+				//d->tried = false;
+				TQCA_SASLNeedParams np = d->c->clientParamsNeeded();
+				needParams(np.user, np.authzid, np.pass, np.realm);
+				return;
+			}
+
+			TQString mech = d->c->mech();
+			const TQByteArray *clientInit = d->c->clientInit();
+
+			d->first = false;
+			d->tried = false;
+			clientFirstStep(mech, clientInit);
+		}
+		else {
+			if(!d->tried) {
+				r = d->c->nextStep(d->stepData);
+				d->tried = true;
+			}
+			else
+				r = d->c->tryAgain();
+
+			if(r == TQCA_SASLContext::Error) {
+				error(ErrAuth);
+				return;
+			}
+			else if(r == TQCA_SASLContext::NeedParams) {
+				//d->tried = false;
+				TQCA_SASLNeedParams np = d->c->clientParamsNeeded();
+				needParams(np.user, np.authzid, np.pass, np.realm);
+				return;
+			}
+			d->tried = false;
+			//else if(r == TQCA_SASLContext::Continue) {
+				nextStep(d->c->result());
+			//	return;
+			//}
+		}
+	}
+
+	if(r == TQCA_SASLContext::Success)
+		authenticated();
+	else if(r == TQCA_SASLContext::Error)
+		error(ErrAuth);
+}
+
+int SASL::ssf() const
+{
+	return d->c->security();
+}
+
+void SASL::write(const TQByteArray &a)
+{
+	TQByteArray b;
+	if(!d->c->encode(a, &b)) {
+		error(ErrCrypt);
+		return;
+	}
+	int oldsize = d->outbuf.size();
+	d->outbuf.resize(oldsize + b.size());
+	memcpy(d->outbuf.data() + oldsize, b.data(), b.size());
+	readyReadOutgoing(a.size());
+}
+
+TQByteArray SASL::read()
+{
+	TQByteArray a = d->inbuf.copy();
+	d->inbuf.resize(0);
+	return a;
+}
+
+void SASL::writeIncoming(const TQByteArray &a)
+{
+	TQByteArray b;
+	if(!d->c->decode(a, &b)) {
+		error(ErrCrypt);
+		return;
+	}
+	int oldsize = d->inbuf.size();
+	d->inbuf.resize(oldsize + b.size());
+	memcpy(d->inbuf.data() + oldsize, b.data(), b.size());
+	readyRead();
+}
+
+TQByteArray SASL::readOutgoing()
+{
+	TQByteArray a = d->outbuf.copy();
+	d->outbuf.resize(0);
+	return a;
+}
diff --git a/src/qca.h b/src/qca.h
new file mode 100644
index 0000000..11a8b92
--- /dev/null
+++ b/src/qca.h
@@ -0,0 +1,466 @@
+/*
+ * qca.h - Qt Cryptographic Architecture
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef TQCA_H
+#define TQCA_H
+
+#include<tqstring.h>
+#include<tqcstring.h>
+#include<tqdatetime.h>
+#include<tqmap.h>
+#include<tqptrlist.h>
+#include<tqobject.h>
+
+#ifdef Q_OS_WIN32
+#  ifndef TQCA_STATIC
+#    ifdef TQCA_MAKEDLL
+#      define TQCA_EXPORT __declspec(dllexport)
+#    else
+#      define TQCA_EXPORT __declspec(dllimport)
+#    endif
+#  endif
+#endif
+#ifndef TQCA_EXPORT
+#define TQCA_EXPORT
+#endif
+
+#ifdef Q_OS_WIN32
+#  ifdef TQCA_PLUGIN_DLL
+#    define TQCA_PLUGIN_EXPORT extern "C" __declspec(dllexport)
+#  else
+#    define TQCA_PLUGIN_EXPORT extern "C" __declspec(dllimport)
+#  endif
+#endif
+#ifndef TQCA_PLUGIN_EXPORT
+#define TQCA_PLUGIN_EXPORT extern "C"
+#endif
+
+class TQHostAddress;
+class TQStringList;
+
+class TQCAProvider;
+class TQCA_HashContext;
+class TQCA_CipherContext;
+class TQCA_CertContext;
+
+namespace TQCA
+{
+	enum {
+		CAP_SHA1      = 0x0001,
+		CAP_SHA256    = 0x0002,
+		CAP_MD5       = 0x0004,
+		CAP_BlowFish  = 0x0008,
+		CAP_TripleDES = 0x0010,
+		CAP_AES128    = 0x0020,
+		CAP_AES256    = 0x0040,
+		CAP_RSA       = 0x0080,
+		CAP_X509      = 0x0100,
+		CAP_TLS       = 0x0200,
+		CAP_SASL      = 0x0400
+	};
+
+	enum {
+		CBC = 0x0001,
+		CFB = 0x0002
+	};
+
+	enum {
+		Encrypt = 0x0001,
+		Decrypt = 0x0002
+	};
+
+	TQCA_EXPORT void init();
+	TQCA_EXPORT bool isSupported(int capabilities);
+	TQCA_EXPORT void insertProvider(TQCAProvider *);
+	TQCA_EXPORT void unloadAllPlugins();
+
+	TQCA_EXPORT TQString arrayToHex(const TQByteArray &);
+	TQCA_EXPORT TQByteArray hexToArray(const TQString &);
+
+	class TQCA_EXPORT Hash
+	{
+	public:
+		Hash(const Hash &);
+		Hash & operator=(const Hash &);
+		~Hash();
+
+		void clear();
+		void update(const TQByteArray &a);
+		TQByteArray final();
+
+	protected:
+		Hash(TQCA_HashContext *);
+
+	private:
+		class Private;
+		Private *d;
+	};
+
+	template <class T>
+	class TQCA_EXPORT HashStatic
+	{
+	public:
+		HashStatic<T>() {}
+
+		static TQByteArray hash(const TQByteArray &a)
+		{
+			T obj;
+			obj.update(a);
+			return obj.final();
+		}
+
+		static TQByteArray hash(const TQCString &cs)
+		{
+			TQByteArray a(cs.length());
+			memcpy(a.data(), cs.data(), a.size());
+			return hash(a);
+		}
+
+		static TQString hashToString(const TQByteArray &a)
+		{
+			return arrayToHex(hash(a));
+		}
+
+		static TQString hashToString(const TQCString &cs)
+		{
+			return arrayToHex(hash(cs));
+		}
+	};
+
+	class TQCA_EXPORT Cipher
+	{
+	public:
+		Cipher(const Cipher &);
+		Cipher & operator=(const Cipher &);
+		~Cipher();
+
+		TQByteArray dyn_generateKey(int size=-1) const;
+		TQByteArray dyn_generateIV() const;
+		void reset(int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad=true);
+		bool update(const TQByteArray &a);
+		TQByteArray final(bool *ok=0);
+
+	protected:
+		Cipher(TQCA_CipherContext *, int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad);
+
+	private:
+		class Private;
+		Private *d;
+	};
+
+	template <class T>
+	class TQCA_EXPORT CipherStatic
+	{
+	public:
+		CipherStatic<T>() {}
+
+		static TQByteArray generateKey(int size=-1)
+		{
+			T obj;
+			return obj.dyn_generateKey(size);
+		}
+
+		static TQByteArray generateIV()
+		{
+			T obj;
+			return obj.dyn_generateIV();
+		}
+	};
+
+	class TQCA_EXPORT SHA1 : public Hash, public HashStatic<SHA1>
+	{
+	public:
+		SHA1();
+	};
+
+	class TQCA_EXPORT SHA256 : public Hash, public HashStatic<SHA256>
+	{
+	public:
+		SHA256();
+	};
+
+	class TQCA_EXPORT MD5 : public Hash, public HashStatic<MD5>
+	{
+	public:
+		MD5();
+	};
+
+	class TQCA_EXPORT BlowFish : public Cipher, public CipherStatic<BlowFish>
+	{
+	public:
+		BlowFish(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
+	};
+
+	class TQCA_EXPORT TripleDES : public Cipher, public CipherStatic<TripleDES>
+	{
+	public:
+		TripleDES(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
+	};
+
+	class TQCA_EXPORT AES128 : public Cipher, public CipherStatic<AES128>
+	{
+	public:
+		AES128(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
+	};
+
+	class TQCA_EXPORT AES256 : public Cipher, public CipherStatic<AES256>
+	{
+	public:
+		AES256(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
+	};
+
+	class RSA;
+	class TQCA_EXPORT RSAKey
+	{
+	public:
+		RSAKey();
+		RSAKey(const RSAKey &from);
+		RSAKey & operator=(const RSAKey &from);
+		~RSAKey();
+
+		bool isNull() const;
+		bool havePublic() const;
+		bool havePrivate() const;
+
+		TQByteArray toDER(bool publicOnly=false) const;
+		bool fromDER(const TQByteArray &a);
+
+		TQString toPEM(bool publicOnly=false) const;
+		bool fromPEM(const TQString &);
+
+		// only call if you know what you are doing
+		bool fromNative(void *);
+
+	private:
+		class Private;
+		Private *d;
+
+		friend class RSA;
+		friend class TLS;
+		bool encrypt(const TQByteArray &a, TQByteArray *out, bool oaep) const;
+		bool decrypt(const TQByteArray &a, TQByteArray *out, bool oaep) const;
+		bool generate(unsigned int bits);
+	};
+
+	class TQCA_EXPORT RSA
+	{
+	public:
+		RSA();
+		~RSA();
+
+		RSAKey key() const;
+		void setKey(const RSAKey &);
+
+		bool encrypt(const TQByteArray &a, TQByteArray *out, bool oaep=false) const;
+		bool decrypt(const TQByteArray &a, TQByteArray *out, bool oaep=false) const;
+
+		static RSAKey generateKey(unsigned int bits);
+
+	private:
+		RSAKey v_key;
+	};
+
+	typedef TQMap<TQString, TQString> CertProperties;
+	class TQCA_EXPORT Cert
+	{
+	public:
+		Cert();
+		Cert(const Cert &);
+		Cert & operator=(const Cert &);
+		~Cert();
+
+		bool isNull() const;
+
+		TQString commonName() const;
+		TQString serialNumber() const;
+		TQString subjectString() const;
+		TQString issuerString() const;
+		CertProperties subject() const;
+		CertProperties issuer() const;
+		TQDateTime notBefore() const;
+		TQDateTime notAfter() const;
+
+		TQByteArray toDER() const;
+		bool fromDER(const TQByteArray &a);
+
+		TQString toPEM() const;
+		bool fromPEM(const TQString &);
+
+	private:
+		class Private;
+		Private *d;
+
+		friend class TLS;
+		void fromContext(TQCA_CertContext *);
+	};
+
+	class TQCA_EXPORT TLS : public TQObject
+	{
+		Q_OBJECT
+	public:
+		enum Validity {
+			NoCert,
+			Valid,
+			HostMismatch,
+			Rejected,
+			Untrusted,
+			SignatureFailed,
+			InvalidCA,
+			InvalidPurpose,
+			SelfSigned,
+			Revoked,
+			PathLengthExceeded,
+			Expired,
+			Unknown
+		};
+		enum Error { ErrHandshake, ErrCrypt };
+
+		TLS(TQObject *parent=0);
+		~TLS();
+
+		void setCertificate(const Cert &cert, const RSAKey &key);
+		void setCertificateStore(const TQPtrList<Cert> &store);  // note: store must persist
+
+		void reset();
+		bool startClient(const TQString &host="");
+		bool startServer();
+		void close();
+		bool isHandshaken() const;
+
+		// plain (application side)
+		void write(const TQByteArray &a);
+		TQByteArray read();
+
+		// encoded (socket side)
+		void writeIncoming(const TQByteArray &a);
+		TQByteArray readOutgoing();
+		TQByteArray readUnprocessed();
+
+		// cert related
+		const Cert & peerCertificate() const;
+		int certificateValidityResult() const;
+
+	signals:
+		void handshaken();
+		void readyRead();
+		void readyReadOutgoing(int plainBytes);
+		void closed();
+		void error(int);
+
+	private slots:
+		void update();
+
+	private:
+		class Private;
+		Private *d;
+	};
+
+	class TQCA_EXPORT SASL : public TQObject
+	{
+		Q_OBJECT
+	public:
+		enum Error { ErrAuth, ErrCrypt };
+		enum ErrorCond {
+			NoMech,
+			BadProto,
+			BadServ,
+			BadAuth,
+			NoAuthzid,
+			TooWeak,
+			NeedEncrypt,
+			Expired,
+			Disabled,
+			NoUser,
+			RemoteUnavail
+		};
+		SASL(TQObject *parent=0);
+		~SASL();
+
+		static void setAppName(const TQString &name);
+
+		void reset();
+		int errorCondition() const;
+
+		// options
+		void setAllowPlain(bool);
+		void setAllowAnonymous(bool);
+		void setAllowActiveVulnerable(bool);
+		void setAllowDictionaryVulnerable(bool);
+		void setRequireForwardSecrecy(bool);
+		void setRequirePassCredentials(bool);
+		void setRequireMutualAuth(bool);
+
+		void setMinimumSSF(int);
+		void setMaximumSSF(int);
+		void setExternalAuthID(const TQString &authid);
+		void setExternalSSF(int);
+
+		void setLocalAddr(const TQHostAddress &addr, TQ_UINT16 port);
+		void setRemoteAddr(const TQHostAddress &addr, TQ_UINT16 port);
+
+		// initialize
+		bool startClient(const TQString &service, const TQString &host, const TQStringList &mechlist, bool allowClientSendFirst=true);
+		bool startServer(const TQString &service, const TQString &host, const TQString &realm, TQStringList *mechlist);
+
+		// authentication
+		void putStep(const TQByteArray &stepData);
+		void putServerFirstStep(const TQString &mech);
+		void putServerFirstStep(const TQString &mech, const TQByteArray &clientInit);
+		void setUsername(const TQString &user);
+		void setAuthzid(const TQString &auth);
+		void setPassword(const TQString &pass);
+		void setRealm(const TQString &realm);
+		void continueAfterParams();
+		void continueAfterAuthCheck();
+
+		// security layer
+		int ssf() const;
+		void write(const TQByteArray &a);
+		TQByteArray read();
+		void writeIncoming(const TQByteArray &a);
+		TQByteArray readOutgoing();
+
+	signals:
+		// for authentication
+		void clientFirstStep(const TQString &mech, const TQByteArray *clientInit);
+		void nextStep(const TQByteArray &stepData);
+		void needParams(bool user, bool authzid, bool pass, bool realm);
+		void authCheck(const TQString &user, const TQString &authzid);
+		void authenticated();
+
+		// for security layer
+		void readyRead();
+		void readyReadOutgoing(int plainBytes);
+
+		// error
+		void error(int);
+
+	private slots:
+		void tryAgain();
+
+	private:
+		class Private;
+		Private *d;
+
+		void handleServerFirstStep(int r);
+	};
+};
+
+#endif
diff --git a/src/qcaprovider.h b/src/qcaprovider.h
new file mode 100644
index 0000000..1b8277b
--- /dev/null
+++ b/src/qcaprovider.h
@@ -0,0 +1,191 @@
+/*
+ * qcaprovider.h - QCA Plugin API
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef TQCAPROVIDER_H
+#define TQCAPROVIDER_H
+
+#include<tqglobal.h>
+#include<tqstring.h>
+#include<tqdatetime.h>
+#include<tqobject.h>
+#include<tqhostaddress.h>
+#include"qca.h"
+
+#define TQCA_PLUGIN_VERSION 1
+
+class TQCAProvider
+{
+public:
+	TQCAProvider() {}
+	virtual ~TQCAProvider() {}
+
+	virtual void init()=0;
+	virtual int qcaVersion() const=0;
+	virtual int capabilities() const=0;
+	virtual void *context(int cap)=0;
+};
+
+class TQCA_HashContext
+{
+public:
+	virtual ~TQCA_HashContext() {}
+
+	virtual TQCA_HashContext *clone()=0;
+	virtual void reset()=0;
+	virtual void update(const char *in, unsigned int len)=0;
+	virtual void final(TQByteArray *out)=0;
+};
+
+class TQCA_CipherContext
+{
+public:
+	virtual ~TQCA_CipherContext() {}
+
+	virtual TQCA_CipherContext *clone()=0;
+	virtual int keySize()=0;
+	virtual int blockSize()=0;
+	virtual bool generateKey(char *out, int keysize=-1)=0;
+	virtual bool generateIV(char *out)=0;
+
+	virtual bool setup(int dir, int mode, const char *key, int keysize, const char *iv, bool pad)=0;
+	virtual bool update(const char *in, unsigned int len)=0;
+	virtual bool final(TQByteArray *out)=0;
+};
+
+class TQCA_RSAKeyContext
+{
+public:
+	virtual ~TQCA_RSAKeyContext() {}
+
+	virtual TQCA_RSAKeyContext *clone() const=0;
+	virtual bool isNull() const=0;
+	virtual bool havePublic() const=0;
+	virtual bool havePrivate() const=0;
+	virtual bool createFromDER(const char *in, unsigned int len)=0;
+	virtual bool createFromPEM(const char *in, unsigned int len)=0;
+	virtual bool createFromNative(void *in)=0;
+	virtual bool generate(unsigned int bits)=0;
+	virtual bool toDER(TQByteArray *out, bool publicOnly)=0;
+	virtual bool toPEM(TQByteArray *out, bool publicOnly)=0;
+
+	virtual bool encrypt(const TQByteArray &in, TQByteArray *out, bool oaep)=0;
+	virtual bool decrypt(const TQByteArray &in, TQByteArray *out, bool oaep)=0;
+};
+
+struct TQCA_CertProperty
+{
+	TQString var;
+	TQString val;
+};
+
+class TQCA_CertContext
+{
+public:
+	virtual ~TQCA_CertContext() {}
+
+	virtual TQCA_CertContext *clone() const=0;
+	virtual bool isNull() const=0;
+	virtual bool createFromDER(const char *in, unsigned int len)=0;
+	virtual bool createFromPEM(const char *in, unsigned int len)=0;
+	virtual bool toDER(TQByteArray *out)=0;
+	virtual bool toPEM(TQByteArray *out)=0;
+
+	virtual TQString serialNumber() const=0;
+	virtual TQString subjectString() const=0;
+	virtual TQString issuerString() const=0;
+	virtual TQValueList<TQCA_CertProperty> subject() const=0;
+	virtual TQValueList<TQCA_CertProperty> issuer() const=0;
+	virtual TQDateTime notBefore() const=0;
+	virtual TQDateTime notAfter() const=0;
+	virtual bool matchesAddress(const TQString &realHost) const=0;
+};
+
+class TQCA_TLSContext
+{
+public:
+	enum Result { Success, Error, Continue };
+	virtual ~TQCA_TLSContext() {}
+
+	virtual void reset()=0;
+	virtual bool startClient(const TQPtrList<TQCA_CertContext> &store, const TQCA_CertContext &cert, const TQCA_RSAKeyContext &key)=0;
+	virtual bool startServer(const TQPtrList<TQCA_CertContext> &store, const TQCA_CertContext &cert, const TQCA_RSAKeyContext &key)=0;
+
+	virtual int handshake(const TQByteArray &in, TQByteArray *out)=0;
+	virtual int shutdown(const TQByteArray &in, TQByteArray *out)=0;
+	virtual bool encode(const TQByteArray &plain, TQByteArray *to_net, int *encoded)=0;
+	virtual bool decode(const TQByteArray &from_net, TQByteArray *plain, TQByteArray *to_net)=0;
+	virtual bool eof() const=0;
+	virtual TQByteArray unprocessed()=0;
+
+	virtual TQCA_CertContext *peerCertificate() const=0;
+	virtual int validityResult() const=0;
+};
+
+struct TQCA_SASLHostPort
+{
+	TQHostAddress addr;
+	Q_UINT16 port;
+};
+
+struct TQCA_SASLNeedParams
+{
+	bool user, authzid, pass, realm;
+};
+
+class TQCA_SASLContext
+{
+public:
+	enum Result { Success, Error, NeedParams, AuthCheck, Continue };
+	virtual ~TQCA_SASLContext() {}
+
+	// common
+	virtual void reset()=0;
+	virtual void setCoreProps(const TQString &service, const TQString &host, TQCA_SASLHostPort *local, TQCA_SASLHostPort *remote)=0;
+	virtual void setSecurityProps(bool noPlain, bool noActive, bool noDict, bool noAnon, bool reqForward, bool reqCreds, bool reqMutual, int ssfMin, int ssfMax, const TQString &_ext_authid, int _ext_ssf)=0;
+	virtual int security() const=0;
+	virtual int errorCond() const=0;
+
+	// init / first step
+	virtual bool clientStart(const TQStringList &mechlist)=0;
+	virtual int clientFirstStep(bool allowClientSendFirst)=0;
+	virtual bool serverStart(const TQString &realm, TQStringList *mechlist, const TQString &name)=0;
+	virtual int serverFirstStep(const TQString &mech, const TQByteArray *in)=0;
+
+	// get / set params
+	virtual TQCA_SASLNeedParams clientParamsNeeded() const=0;
+	virtual void setClientParams(const TQString *user, const TQString *authzid, const TQString *pass, const TQString *realm)=0;
+	virtual TQString username() const=0;
+	virtual TQString authzid() const=0;
+
+	// continue steps
+	virtual int nextStep(const TQByteArray &in)=0;
+	virtual int tryAgain()=0;
+
+	// results
+	virtual TQString mech() const=0;
+	virtual const TQByteArray *clientInit() const=0;
+	virtual TQByteArray result() const=0;
+
+	// security layer
+	virtual bool encode(const TQByteArray &in, TQByteArray *out)=0;
+	virtual bool decode(const TQByteArray &in, TQByteArray *out)=0;
+};
+
+#endif