mirror of
https://github.com/transmission/transmission
synced 2024-12-27 01:57:52 +00:00
879a2afcbd
The Berne Convention says that the copyright year is moot, so instead of adding another year to each file as in previous years, I've removed the year altogether from the source code comments in libtransmission, gtk, qt, utils, daemon, and cli. Juliusz's copyright notice in tr-dht and Johannes' copyright notice in tr-lpd have been left alone; it didn't seem appropriate to modify them.
108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/*
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* This file Copyright (C) Mnemosyne LLC
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*
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* This file is licensed by the GPL version 2. Works owned by the
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* Transmission project are granted a special exemption to clause 2(b)
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* so that the bulk of its code can remain under the MIT license.
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* This exemption does not extend to derived works not owned by
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* the Transmission project.
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*
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* $Id$
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*/
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#ifndef TR_ENCRYPTION_H
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#define TR_ENCRYPTION_H
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#include <inttypes.h>
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#include "utils.h" /* TR_GNUC_NULL_TERMINATED */
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/**
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***
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**/
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struct evbuffer;
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/**
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*** @addtogroup peers
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*** @{
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**/
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typedef struct tr_crypto tr_crypto;
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/** @brief create a new tr_crypto object */
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tr_crypto* tr_cryptoNew( const uint8_t * torrentHash, int isIncoming );
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/** @brief destroy an existing tr_crypto object */
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void tr_cryptoFree( tr_crypto * crypto );
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void tr_cryptoSetTorrentHash( tr_crypto * crypto, const uint8_t * torrentHash );
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const uint8_t* tr_cryptoGetTorrentHash( const tr_crypto * crypto );
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int tr_cryptoHasTorrentHash( const tr_crypto * crypto );
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const uint8_t* tr_cryptoComputeSecret( tr_crypto * crypto,
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const uint8_t * peerPublicKey );
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const uint8_t* tr_cryptoGetMyPublicKey( const tr_crypto * crypto,
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int * setme_len );
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void tr_cryptoDecryptInit( tr_crypto * crypto );
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void tr_cryptoDecrypt( tr_crypto * crypto,
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size_t buflen,
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const void * buf_in,
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void * buf_out );
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void tr_cryptoEncryptInit( tr_crypto * crypto );
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void tr_cryptoEncrypt( tr_crypto * crypto,
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size_t buflen,
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const void * buf_in,
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void * buf_out );
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/* @} */
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/**
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*** @addtogroup utils Utilities
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*** @{
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**/
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/** @brief generate a SHA1 hash from one or more chunks of memory */
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void tr_sha1( uint8_t * setme,
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const void * content1,
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int content1_len,
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... ) TR_GNUC_NULL_TERMINATED;
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/** @brief returns a random number in the range of [0...n) */
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int tr_cryptoRandInt( int n );
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/**
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* @brief returns a pseudorandom number in the range of [0...n)
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*
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* This is faster, BUT WEAKER, than tr_cryptoRandInt() and never
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* be used in sensitive cases.
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* @see tr_cryptoRandInt()
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*/
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int tr_cryptoWeakRandInt( int n );
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/** @brief fill a buffer with random bytes */
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void tr_cryptoRandBuf( void * buf, size_t len );
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/** @brief generate a SSHA password from its plaintext source */
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char* tr_ssha1( const void * plaintext );
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/** @brief Validate a test password against the a ssha1 password */
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tr_bool tr_ssha1_matches( const char * ssha1, const char * pass );
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/* @} */
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#endif
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