From 9ad5c7b5e23b4940e7a3ea3ca3a6fb77e6a8fab0 Mon Sep 17 00:00:00 2001 From: tpearson Date: Wed, 20 Jan 2010 02:37:40 +0000 Subject: Updated to final KDE3 ktorrent release (2.2.6) git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/ktorrent@1077377 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- libktorrent/util/sha1hashgen.h | 90 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 libktorrent/util/sha1hashgen.h (limited to 'libktorrent/util/sha1hashgen.h') diff --git a/libktorrent/util/sha1hashgen.h b/libktorrent/util/sha1hashgen.h new file mode 100644 index 0000000..08cc3ad --- /dev/null +++ b/libktorrent/util/sha1hashgen.h @@ -0,0 +1,90 @@ +/*************************************************************************** + * Copyright (C) 2005 by Joris Guisson * + * joris.guisson@gmail.com * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program 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 General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * + ***************************************************************************/ +#ifndef BTSHA1HASHGEN_H +#define BTSHA1HASHGEN_H + +#include "constants.h" +#include "sha1hash.h" + +namespace bt +{ + + /** + * @author Joris Guisson + * + * Generates a SHA1 hash, code based on wikipedia's pseudocode + * There are 2 ways to use this class : + * - generate : all data is present from the start + * - start, update and end : data can be delivered in chunks + * + * Mixing the 2, is not a good idea + */ + class SHA1HashGen + { + Uint32 h0; + Uint32 h1; + Uint32 h2; + Uint32 h3; + Uint32 h4; + Uint8 tmp[64]; + Uint32 tmp_len; + Uint32 total_len; + public: + SHA1HashGen(); + ~SHA1HashGen(); + + /** + * Generate a hash from a bunch of data. + * @param data The data + * @param len The length + * @return The SHA1 hash + */ + SHA1Hash generate(const Uint8* data,Uint32 len); + + /** + * Start SHA1 hash generation in chunks. + */ + void start(); + + /** + * Update the hash. + * @param data The data + * @param len Length of the data + */ + void update(const Uint8* data,Uint32 len); + + + /** + * All data has been delivered, calculate the final hash. + * @return + */ + void end(); + + /** + * Get the hash generated. + */ + SHA1Hash get() const; + private: + void processChunk(const Uint8* c); + }; + +} + +#endif -- cgit v1.2.1