Thread: [Opentnl-cvs] tnl/libtomcrypt/hashes/helper hash_file.c,NONE,1.1 hash_filehandle.c,NONE,1.1 hash_mem
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From: Mark F. <mar...@us...> - 2005-04-28 17:28:05
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Update of /cvsroot/opentnl/tnl/libtomcrypt/hashes/helper In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv26694/libtomcrypt/hashes/helper Added Files: hash_file.c hash_filehandle.c hash_memory.c hash_memory_multi.c Log Message: Updated to libtomcrypt 1.0.2 Not tested on linux or OS X --- NEW FILE: hash_filehandle.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" /** @file hash_filehandle.c Hash open files, Tom St Denis */ /** Hash data from an open file handle. @param hash The index of the hash you want to use @param in The FILE* handle of the file you want to hash @param out [out] The destination of the digest @param outlen [in/out] The max size and resulting size of the digest @result CRYPT_OK if successful */ int hash_filehandle(int hash, FILE *in, unsigned char *out, unsigned long *outlen) { #ifdef LTC_NO_FILE return CRYPT_NOP; #else hash_state md; unsigned char buf[512]; size_t x; int err; LTC_ARGCHK(out != NULL); LTC_ARGCHK(outlen != NULL); LTC_ARGCHK(in != NULL); if ((err = hash_is_valid(hash)) != CRYPT_OK) { return err; } if (*outlen < hash_descriptor[hash].hashsize) { return CRYPT_BUFFER_OVERFLOW; } if ((err = hash_descriptor[hash].init(&md)) != CRYPT_OK) { return err; } *outlen = hash_descriptor[hash].hashsize; do { x = fread(buf, 1, sizeof(buf), in); if ((err = hash_descriptor[hash].process(&md, buf, x)) != CRYPT_OK) { return err; } } while (x == sizeof(buf)); err = hash_descriptor[hash].done(&md, out); #ifdef LTC_CLEAN_STACK zeromem(buf, sizeof(buf)); #endif return err; #endif } --- NEW FILE: hash_memory.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" /** @file hash_memory.c Hash memory helper, Tom St Denis */ /** Hash a block of memory and store the digest. @param hash The index of the hash you wish to use @param in The data you wish to hash @param inlen The length of the data to hash (octets) @param out [out] Where to store the digest @param outlen [in/out] Max size and resulting size of the digest @return CRYPT_OK if successful */ int hash_memory(int hash, const unsigned char *in, unsigned long inlen, unsigned char *out, unsigned long *outlen) { hash_state *md; int err; LTC_ARGCHK(in != NULL); LTC_ARGCHK(out != NULL); LTC_ARGCHK(outlen != NULL); if ((err = hash_is_valid(hash)) != CRYPT_OK) { return err; } if (*outlen < hash_descriptor[hash].hashsize) { return CRYPT_BUFFER_OVERFLOW; } md = XMALLOC(sizeof(hash_state)); if (md == NULL) { return CRYPT_MEM; } if ((err = hash_descriptor[hash].init(md)) != CRYPT_OK) { goto LBL_ERR; } if ((err = hash_descriptor[hash].process(md, in, inlen)) != CRYPT_OK) { goto LBL_ERR; } err = hash_descriptor[hash].done(md, out); *outlen = hash_descriptor[hash].hashsize; LBL_ERR: #ifdef LTC_CLEAN_STACK zeromem(md, sizeof(hash_state)); #endif XFREE(md); return err; } --- NEW FILE: hash_memory_multi.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" #include <stdarg.h> /** @file hash_memory_multi.c Hash (multiple buffers) memory helper, Tom St Denis */ /** Hash multiple (non-adjacent) blocks of memory at once. @param hash The index of the hash you wish to use @param out [out] Where to store the digest @param outlen [in/out] Max size and resulting size of the digest @param in The data you wish to hash @param inlen The length of the data to hash (octets) @param ... tuples of (data,len) pairs to hash, terminated with a (NULL,x) (x=don't care) @return CRYPT_OK if successful */ int hash_memory_multi(int hash, unsigned char *out, unsigned long *outlen, const unsigned char *in, unsigned long inlen, ...) { hash_state *md; int err; va_list args; const unsigned char *curptr; unsigned long curlen; LTC_ARGCHK(in != NULL); LTC_ARGCHK(out != NULL); LTC_ARGCHK(outlen != NULL); if ((err = hash_is_valid(hash)) != CRYPT_OK) { return err; } if (*outlen < hash_descriptor[hash].hashsize) { return CRYPT_BUFFER_OVERFLOW; } md = XMALLOC(sizeof(hash_state)); if (md == NULL) { return CRYPT_MEM; } if ((err = hash_descriptor[hash].init(md)) != CRYPT_OK) { goto LBL_ERR; } va_start(args, inlen); curptr = in; curlen = inlen; for (;;) { /* process buf */ if ((err = hash_descriptor[hash].process(md, curptr, curlen)) != CRYPT_OK) { goto LBL_ERR; } /* step to next */ curptr = va_arg(args, const unsigned char*); if (curptr == NULL) { break; } curlen = va_arg(args, unsigned long); } err = hash_descriptor[hash].done(md, out); *outlen = hash_descriptor[hash].hashsize; LBL_ERR: #ifdef LTC_CLEAN_STACK zeromem(md, sizeof(hash_state)); #endif XFREE(md); va_end(args); return err; } --- NEW FILE: hash_file.c --- /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tom...@gm..., http://libtomcrypt.org */ #include "tomcrypt.h" /** @file hash_file.c Hash a file, Tom St Denis */ /** @param hash The index of the hash desired @param fname The name of the file you wish to hash @param out [out] The destination of the digest @param outlen [in/out] The max size and resulting size of the message digest @result CRYPT_OK if successful */ int hash_file(int hash, const char *fname, unsigned char *out, unsigned long *outlen) { #ifdef LTC_NO_FILE return CRYPT_NOP; #else FILE *in; int err; LTC_ARGCHK(fname != NULL); LTC_ARGCHK(out != NULL); LTC_ARGCHK(outlen != NULL); if ((err = hash_is_valid(hash)) != CRYPT_OK) { return err; } in = fopen(fname, "rb"); if (in == NULL) { return CRYPT_FILE_NOTFOUND; } err = hash_filehandle(hash, in, out, outlen); if (fclose(in) != 0) { return CRYPT_ERROR; } return err; #endif } |