PHP版本DES加密解(对应.net版与JAVA版)
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2022-05-21 09:11:06
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/** * * 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 ( $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); } }
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