2019独角兽企业重金招聘Python工程师标准>>> 
/**
*
* DES FOR .NET版本
* @author Administrator
*
*/
class DES_NET{
var $key;
var $iv; //偏移量
function DES_NET( $key, $iv=0 ) {
//key长度8例如:1234abcd
$this->key = $key;
if( $iv == 0 ) {
$this->iv = $key; //默认以$key 作为 iv
} else {
$this->iv = $iv; //mcrypt_create_iv ( mcrypt_get_block_size (MCRYPT_DES, MCRYPT_MODE_CBC), MCRYPT_DEV_RANDOM );
}
}
function encrypt($str) {
//加密，返回大写十六进制字符串
$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 );
}
}
/**
*
* DES JAVA版本
* @author Administrator
*
*/
class DES_JAVA{
var $key;
function DES_JAVA( $key ){
$this->key = $key;
}
function encrypt($encrypt) {
$encrypt = $this->pkcs5_pad($encrypt);
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB), MCRYPT_RAND);
$passcrypt = mcrypt_encrypt(MCRYPT_DES, $this->key, $encrypt, MCRYPT_MODE_ECB, $iv);
return strtoupper( bin2hex($passcrypt) );
}
function decrypt($decrypt) {
// $decoded = base64_decode($decrypt);
$decoded = pack("H*", $decrypt);
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB), MCRYPT_RAND);
$decrypted = mcrypt_decrypt(MCRYPT_DES, $this->key, $decoded, MCRYPT_MODE_ECB, $iv);
return $this->pkcs5_unpad($decrypted);
}
function pkcs5_unpad($text){
$pad = ord($text{strlen($text)-1});
if ($pad > strlen($text)) return $text;
if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return $text;
return substr($text, 0, -1 * $pad);
}
function pkcs5_pad($text){
$len = strlen($text);
$mod = $len % 8;
$pad = 8 - $mod;
return $text.str_repeat(chr($pad),$pad);
}
}