標籤:
<?phpclass DES {var $key;var $iv; // 位移量function DES($key, $iv = 0) {// key長度8例如:1234abcd$this->key = $key;if ($iv == 0) {$this->iv = $key;} else {$this->iv = $iv; // mcrypt_create_iv ( mcrypt_get_block_size// (MCRYPT_DES, MCRYPT_MODE_CBC), MCRYPT_DEV_RANDOM );}}function encrypt($str) {// 加密,返回大寫十六進位字串$size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC );$str = $this->pkcs5Pad ( $str, $size );return strtoupper ( bin2hex ( mcrypt_cbc ( MCRYPT_DES, $this->key, $str, MCRYPT_ENCRYPT, $this->iv ) ) );}function decrypt($str) {// 解密$strBin = $this->hex2bin ( strtolower ( $str ) );$str = mcrypt_cbc ( MCRYPT_DES, $this->key, $strBin, MCRYPT_DECRYPT, $this->iv );$str = $this->pkcs5Unpad ( $str );return $str;}function hex2bin($hexData) {$binData = "";for($i = 0; $i < strlen ( $hexData ); $i += 2) {$binData .= chr ( hexdec ( substr ( $hexData, $i, 2 ) ) );}return $binData;}function pkcs5Pad($text, $blocksize) {$pad = $blocksize - (strlen ( $text ) % $blocksize);return $text . str_repeat ( chr ( $pad ), $pad );}function pkcs5Unpad($text) {$pad = ord ( $text {strlen ( $text ) - 1} );if ($pad > strlen ( $text ))return false;if (strspn ( $text, chr ( $pad ), strlen ( $text ) - $pad ) != $pad)return false;return substr ( $text, 0, - 1 * $pad );}}$str = ‘70E53B8C95432C90‘;$key = ‘zw_fsccp‘;$crypt = new DES ( $key );$str = $crypt->decrypt ( $str );echo $str ;
php 與 C# 之間的DES加解密