diff options
| -rw-r--r-- | Net/OpenID/HMACSHA1.php | 49 |
1 files changed, 26 insertions, 23 deletions
diff --git a/Net/OpenID/HMACSHA1.php b/Net/OpenID/HMACSHA1.php index b379438..4c79d1b 100644 --- a/Net/OpenID/HMACSHA1.php +++ b/Net/OpenID/HMACSHA1.php @@ -20,25 +20,27 @@ define('SHA1_BLOCKSIZE', 64); if (FALSE && function_exists('mhash')) { - function Net_OpenID_HMACSHA1($key, $text) { - return mhash(MHASH_SHA1, $text, $key); - } + function Net_OpenID_HMACSHA1($key, $text) + { + return mhash(MHASH_SHA1, $text, $key); + } } else { if (!function_exists('sha1')) { // XXX: include the SHA1 code from Dan Libby's OpenID library trigger_error('No SHA1 function found', E_USER_ERROR); } else { - function sha1_raw($text) { - $hex = sha1($text); - $raw = ''; - for ($i = 0; $i < 40; $i += 2) { - $hexcode = substr($hex, $i, 2); - $charcode = (int)base_convert($hexcode, 16, 10); - $raw .= chr($charcode); + function sha1_raw($text) + { + $hex = sha1($text); + $raw = ''; + for ($i = 0; $i < 40; $i += 2) { + $hexcode = substr($hex, $i, 2); + $charcode = (int)base_convert($hexcode, 16, 10); + $raw .= chr($charcode); + } + return $raw; } - return $raw; - } } /** @@ -46,18 +48,19 @@ if (FALSE && function_exists('mhash')) { * * @ignore */ - function Net_OpenID_HMACSHA1($key, $text) { - if (strlen($key) > SHA1_BLOCKSIZE) { - $key = sha1_raw($key, TRUE); - } + function Net_OpenID_HMACSHA1($key, $text) + { + if (strlen($key) > SHA1_BLOCKSIZE) { + $key = sha1_raw($key, TRUE); + } - $key = str_pad($key, SHA1_BLOCKSIZE, chr(0x00)); - $ipad = str_repeat(chr(0x36), SHA1_BLOCKSIZE); - $opad = str_repeat(chr(0x5c), SHA1_BLOCKSIZE); - $hash1 = sha1_raw(($key ^ $ipad) . $text, TRUE); - $hmac = sha1_raw(($key ^ $opad) . $hash1, TRUE); - return $hmac; - } + $key = str_pad($key, SHA1_BLOCKSIZE, chr(0x00)); + $ipad = str_repeat(chr(0x36), SHA1_BLOCKSIZE); + $opad = str_repeat(chr(0x5c), SHA1_BLOCKSIZE); + $hash1 = sha1_raw(($key ^ $ipad) . $text, TRUE); + $hmac = sha1_raw(($key ^ $opad) . $hash1, TRUE); + return $hmac; + } } ?>
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