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Diffstat (limited to 'branches/1.0/tinySAK/src/tsk_uuid.c')
-rw-r--r-- | branches/1.0/tinySAK/src/tsk_uuid.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/branches/1.0/tinySAK/src/tsk_uuid.c b/branches/1.0/tinySAK/src/tsk_uuid.c deleted file mode 100644 index 18c04f3..0000000 --- a/branches/1.0/tinySAK/src/tsk_uuid.c +++ /dev/null @@ -1,92 +0,0 @@ -/* -* Copyright (C) 2009-2010 Mamadou Diop. -* -* Contact: Mamadou Diop <diopmamadou(at)doubango.org> -* -* This file is part of Open Source Doubango Framework. -* -* DOUBANGO 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 3 of the License, or -* (at your option) any later version. -* -* DOUBANGO 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 DOUBANGO. -* -*/ - -/**@file tsk_uuid.c - * @brief Universally Unique Identifier (UUID version 5) implementation (RFC 4122). - * This implementation is not fully conform to RFC 4122 but could be safely used to generate random UUIDs. - * - * @author Mamadou Diop <diopmamadou(at)doubango.org> - * - * @date Created: Sat Nov 8 16:54:58 2009 mdiop - */ -#include "tsk_uuid.h" - -#include "tsk_sha1.h" -#include "tsk_string.h" -#include "tsk_time.h" - -#include <stdlib.h> -#include <string.h> - -/**@defgroup tsk_uuid_group niversally Unique Identifier (UUID version 5) implementation (RFC 4122). -*/ - -/**@ingroup tsk_uuid_group -*/ -int tsk_uuidgenerate(tsk_uuidstring_t *result) -{ - /* From wikipedia - * Version 5 UUIDs use a scheme with SHA-1 hashing, otherwise it is the same idea as in version 3. - * RFC 4122 states that version 5 is preferred over version 3 name based UUIDs. - * Note that the 160 bit SHA-1 hash is truncated to 128 bits to make the length work out. - */ - tsk_sha1string_t sha1result; - tsk_istr_t epoch; - unsigned i, k; - static char HEX[] = "0123456789abcdef"; - - tsk_itoa(tsk_time_epoch(), &epoch); - tsk_sha1compute(epoch, sizeof(epoch), &sha1result); - - /* XOR the SHA-1 result with random numbers. */ - for(i=0; i<(TSK_UUID_DIGEST_SIZE*2); i+=4){ -#if 0 - *((uint32_t*)&sha1result[i]) ^= rand(); -#else - k = rand(); - sha1result[i] ^= k, sha1result[i + 1] ^= k,
- sha1result[i + 2] ^= k, sha1result[i + 3] ^= k; -#endif - - for(k=0; k<sizeof(uint32_t); k++){ - sha1result[i+k] = HEX[sha1result[i+k] & 0x0F]; /* To hexa. */ - } - } - - /* f47ac10b-58cc-4372-a567-0e02b2c3d479 */ - memcpy(&(*result)[0], &sha1result[0], 8); - (*result)[8] = '-'; - - memcpy(&(*result)[9], &sha1result[8], 4); - (*result)[13] = '-'; - - memcpy(&(*result)[14], &sha1result[12], 4); - (*result)[18] = '-'; - - memcpy(&(*result)[19], &sha1result[16], 4); - (*result)[23] = '-'; - - memcpy(&(*result)[24], &sha1result[20], 12); - (*result)[36] = '\0'; - - return 0; -} |