Exemplo n.º 1
0
char*
tr_ssha1( const void * plaintext )
{
    enum { saltval_len = 8,
           salter_len  = 64 };
    static const char * salter = "0123456789"
                                 "abcdefghijklmnopqrstuvwxyz"
                                 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                                 "./";

    size_t i;
    unsigned char salt[saltval_len];
    uint8_t sha[SHA_DIGEST_LENGTH];
    char buf[2*SHA_DIGEST_LENGTH + saltval_len + 2];

    tr_cryptoRandBuf( salt, saltval_len );
    for( i=0; i<saltval_len; ++i )
        salt[i] = salter[ salt[i] % salter_len ];

    tr_sha1( sha, plaintext, strlen( plaintext ), salt, saltval_len, NULL );
    tr_sha1_to_hex( &buf[1], sha );
    memcpy( &buf[1+2*SHA_DIGEST_LENGTH], &salt, saltval_len );
    buf[1+2*SHA_DIGEST_LENGTH + saltval_len] = '\0';
    buf[0] = '{'; /* signal that this is a hash. this makes saving/restoring
                     easier */

    return tr_strdup( &buf );
}
Exemplo n.º 2
0
tr_bool
tr_ssha1_matches( const char * source, const char * pass )
{
    char * salt;
    size_t saltlen;
    char * hashed;
    uint8_t buf[SHA_DIGEST_LENGTH];
    tr_bool result;

    /* extract the salt */
    saltlen = strlen( source ) - 2*SHA_DIGEST_LENGTH-1;
    salt = tr_malloc( saltlen );
    memcpy( salt, source + 2*SHA_DIGEST_LENGTH+1, saltlen );

    /* hash pass + salt */
    hashed = tr_malloc( 2*SHA_DIGEST_LENGTH + saltlen + 2 );
    tr_sha1( buf, pass, strlen( pass ), salt, saltlen, NULL );
    tr_sha1_to_hex( &hashed[1], buf );
    memcpy( hashed + 1+2*SHA_DIGEST_LENGTH, salt, saltlen );
    hashed[1+2*SHA_DIGEST_LENGTH + saltlen] = '\0';
    hashed[0] = '{';

    result = strcmp( source, hashed ) == 0 ? TRUE : FALSE;

    tr_free( hashed );
    tr_free( salt );

    return result;
}
Exemplo n.º 3
0
static int
test_hex (void)
{
  char hex1[41];
  char hex2[41];
  uint8_t sha1[20];

  memcpy (hex1, "fb5ef5507427b17e04b69cef31fa3379b456735a", 41);
  tr_hex_to_sha1 (sha1, hex1);
  tr_sha1_to_hex (hex2, sha1);
  check_streq (hex1, hex2);

  return 0;
}