php-java登入thinksns時的加密解密操作

phpjavades

api說在登入的時候帳號需要des加密, 密碼需要des和md5加密, 可是我用了好幾種des加密都是認證失敗.
我用的是java, 下面是我從thinksns 裡找到的php代碼, 求好心人轉成java, php真心不太懂

class DES_MOBILE {
var $key = '12345678';

function setKey($key){ $this->key = $key; return $this;}function encrypt($string) { $ivArray=array(0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF); $iv=null; foreach ($ivArray as $element) $iv.=CHR($element); $size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC ); $string = $this->pkcs5Pad ( $string, $size ); $data = mcrypt_encrypt(MCRYPT_DES, $this->key, $string, MCRYPT_MODE_CBC, $iv); $data = base64_encode($data); return $data;}function decrypt($string) { $ivArray=array(0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF); $iv=null; foreach ($ivArray as $element) $iv.=CHR($element); $string = base64_decode($string); $result = mcrypt_decrypt(MCRYPT_DES, $this->key, $string, MCRYPT_MODE_CBC, $iv); $result = $this->pkcs5Unpad( $result ); return $result;} function pkcs5Pad($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 ); } 

}

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