| | |
| | | * Function which implements HMAC MD5 digest |
| | | * |
| | | * @param string $key The secret key |
| | | * @param string $data The data to protect |
| | | * @return string The HMAC MD5 digest |
| | | * @param string $data The data to hash |
| | | * @param bool $raw_output Whether the digest is returned in binary or hexadecimal format. |
| | | * |
| | | * @return string The HMAC-MD5 digest |
| | | */ |
| | | function _HMAC_MD5($key, $data) |
| | | function _HMAC_MD5($key, $data, $raw_output = FALSE) |
| | | { |
| | | if (strlen($key) > 64) { |
| | | $key = pack('H32', md5($key)); |
| | |
| | | $k_opad = substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64); |
| | | |
| | | $inner = pack('H32', md5($k_ipad . $data)); |
| | | $digest = md5($k_opad . $inner); |
| | | $digest = md5($k_opad . $inner, $raw_output); |
| | | |
| | | return $digest; |
| | | } |
| | | |
| | | /** |
| | | * Function which implements HMAC-SHA-1 digest |
| | | * |
| | | * @param string $key The secret key |
| | | * @param string $data The data to hash |
| | | * @param bool $raw_output Whether the digest is returned in binary or hexadecimal format. |
| | | * @return string The HMAC-SHA-1 digest |
| | | * @author Jehan <jehan.marmottard@gmail.com> |
| | | * @access protected |
| | | */ |
| | | protected function _HMAC_SHA1($key, $data, $raw_output = FALSE) |
| | | { |
| | | if (strlen($key) > 64) { |
| | | $key = sha1($key, TRUE); |
| | | } |
| | | |
| | | if (strlen($key) < 64) { |
| | | $key = str_pad($key, 64, chr(0)); |
| | | } |
| | | |
| | | $k_ipad = substr($key, 0, 64) ^ str_repeat(chr(0x36), 64); |
| | | $k_opad = substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64); |
| | | |
| | | $inner = pack('H40', sha1($k_ipad . $data)); |
| | | $digest = sha1($k_opad . $inner, $raw_output); |
| | | |
| | | return $digest; |
| | | } |