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184 lines
6.8 KiB
184 lines
6.8 KiB
/* $Id: crypto.h,v 1.9 2008/07/31 19:56:26 hoganrobert Exp $ */
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/* Copyright (C) 2006 - 2008 Robert Hogan *
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* robert@roberthogan.net *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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*
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* Most of this file is derived from Tor and Vidalia.
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*
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* The licences for both follow:
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*
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* Vidalia is distributed under the following license:
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*
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* Copyright (C) 2007, Matt Edman, Justin Hipple
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* * * *
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*
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* Pseudorandom number generation support in this file is derived from
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* Tor's crypto.[ch]. Tor is distributed under this license.
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*
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* Copyright (c) 2001-2004, Roger Dingledine
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* Copyright (c) 2004-2007, Roger Dingledine, Nick Mathewson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* * Neither the names of the copyright owners nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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****************************************************************/
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/**
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* \file crypto.h
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*
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* \brief Headers for crypto.c
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**/
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#define BASE64_DIGEST_LEN 27
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#define DIGEST_LEN 20
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#define HEX_DIGEST_LEN 40
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#define SIZE_T_CEILING (sizeof(char)<<(sizeof(size_t)*8 - 1))
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#define S2K_SPECIFIER_LEN 9
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#include <ntqmap.h>
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#include <ntqstring.h>
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typedef struct crypto_digest_env_t crypto_digest_env_t;
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int read_all(int fd, char *buf, size_t count, int isSocket);
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int base64_decode(char *dest, size_t destlen, const char *src, size_t srclen);
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int digest_from_base64(char *digest, const char *d64);
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void base16_encode(char *dest, size_t destlen, const char *src, size_t srclen);
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int digest_to_base64(char *d64, const char *digest);
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int base64_encode(char *dest, size_t destlen, const char *src, size_t srclen);
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int base16_decode(char *dest, size_t destlen, const char *src, size_t srclen);
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TQString getFPDigestFromFP(const TQString &fp);
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TQString getNickNameFromFPDigest(const TQString &fpdigest);
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TQString getNickNameFromFP(const TQString &fp);
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TQString getFPFromNickName(const TQString &nickname);
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TQString getFPFromFPDigest(const TQString &fp);
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void storeServer(const TQString &server,const TQString &fp_identity);
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void clearServers();
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TQString fp_identity(const TQString &server);
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TQString server(const TQString &fp_identity);
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TQString hashPassword(const char* secret);
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TQString crypto_rand_string(int len);
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/* random numbers */
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int crypto_seed_rng(void);
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int crypto_rand(char *to, size_t n);
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int crypto_rand_int(unsigned int max);
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/*
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cdecode.h - c header for a base64 decoding algorithm
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This is part of the libb64 project, and has been placed in the public domain.
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For details, see http://sourceforge.net/projects/libb64
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*/
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typedef enum
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{
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step_a, step_b, step_c, step_d
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} base64_decodestep;
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typedef struct
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{
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base64_decodestep step;
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char plainchar;
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} base64_decodestate;
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void base64_init_decodestate(base64_decodestate* state_in);
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int base64_decode_value(char value_in);
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int base64_decode_block(const char* code_in, const int length_in, char* plaintext_out, base64_decodestate* state_in);
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/*
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cencode.h - c header for a base64 encoding algorithm
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This is part of the libb64 project, and has been placed in the public domain.
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For details, see http://sourceforge.net/projects/libb64
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*/
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typedef enum
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{
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step_A, step_B, step_C
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} base64_encodestep;
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typedef struct
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{
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base64_encodestep step;
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char result;
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int stepcount;
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} base64_encodestate;
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void base64_init_encodestate(base64_encodestate* state_in);
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char base64_encode_value(char value_in);
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int base64_encode_block(const char* plaintext_in, int length_in, char* code_out, base64_encodestate* state_in);
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int base64_encode_blockend(char* code_out, base64_encodestate* state_in);
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