whirlpool/whirlpool_digest.c

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00001 // Copyright 2006 Benedikt Böhm <hollow@gentoo.org>
00002 //
00003 // This program is free software; you can redistribute it and/or modify
00004 // it under the terms of the GNU General Public License as published by
00005 // the Free Software Foundation; either version 2 of the License, or
00006 // (at your option) any later version.
00007 //
00008 // This program is distributed in the hope that it will be useful,
00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011 // GNU General Public License for more details.
00012 //
00013 // You should have received a copy of the GNU General Public License
00014 // along with this program; if not, write to the
00015 // Free Software Foundation, Inc.,
00016 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00017 
00018 #include <stdlib.h>
00019 
00020 #include "str.h"
00021 #include "stralloc.h"
00022 #include "whirlpool.h"
00023 
00024 char *whirlpool_digest(const char *str)
00025 {
00026         whirlpool_t ctx;
00027         stralloc_t sa;
00028         char *buf;
00029         uint8_t digest[DIGESTBYTES];
00030         int i;
00031         
00032         whirlpool_init(&ctx);
00033         whirlpool_add(&ctx, (const unsigned char * const) str, str_len(str)*8);
00034         whirlpool_finalize(&ctx, digest);
00035         
00036         stralloc_init(&sa);
00037         
00038         for (i = 0; i < DIGESTBYTES; i++)
00039                 stralloc_catf(&sa, "%02X", digest[i]);
00040         
00041         buf = str_dupn(sa.s, sa.len);
00042         
00043         stralloc_free(&sa);
00044         
00045         return buf;
00046 }

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