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#include <config.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include "skey.h"
#include "skeyutil.h"
#include "md5.h"
int MD5Keycrunch(char *result, const char *seed, const char *passhrase)
{
char *buf;
gsize len;
GChecksum *checksum;
guint8 digest[16];
gsize digest_len = sizeof (digest);
guint32 *results;
len = strlen(seed) + strlen(passhrase);
buf = (char *)g_try_malloc(len+1);
if (buf == NULL)
return -1;
strcpy(buf, seed);
skey_lowcase(buf);
strcat(buf, passhrase);
skey_sevenbit(buf);
checksum = g_checksum_new (G_CHECKSUM_MD5);
g_checksum_update (checksum, (const guchar *) buf, len);
g_free(buf);
g_checksum_get_digest (checksum, digest, &digest_len);
g_assert (digest_len == 16);
results = (guint32 *) digest;
results[0] ^= results[2];
results[1] ^= results[3];
memcpy((void *)result, (void *)results, SKEY_SIZE);
g_checksum_free (checksum);
return 0;
}
void MD5SKey(char *x)
{
GChecksum *checksum;
guint8 digest[16];
gsize digest_len = sizeof (digest);
guint32 *results;
checksum = g_checksum_new (G_CHECKSUM_MD5);
g_checksum_update (checksum, (const guchar *) x, SKEY_SIZE);
g_checksum_get_digest (checksum, digest, &digest_len);
g_assert (digest_len == 16);
results = (guint32 *) digest;
results[0] ^= results[2];
results[1] ^= results[3];
memcpy((void *)x, (void *)results, SKEY_SIZE);
g_checksum_free (checksum);
}
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