117 lines
3.6 KiB
PHP
117 lines
3.6 KiB
PHP
<?php
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namespace App\ServicePay\Citpay;
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class Aes56
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{
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public static function encrypt($str, $screct_key, $IVS = array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0))
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{
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//AES, 128 模式加密数据 CBC
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$IVS = implode(array_map("chr", $IVS));
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$screct_key = static::getSercrtCode($screct_key);
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$screct_key = base64_decode($screct_key);
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//echo $screct_key . '---000</br/>';
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$str = static:: addPKCS7Padding($str);
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$iv = @ mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC), 1);
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$encrypt_str = @mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_CBC, $IVS);
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return base64_encode($encrypt_str);
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}
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public static function getSercrtCode($key)
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{
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$key = static::sha256hashBase64($key);
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// $ivSize = @mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
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// $iv = @mcrypt_create_iv($ivSize, MCRYPT_RAND);
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$key2 = substr(openssl_digest(openssl_digest($key, 'sha1', true), 'sha1', true), 0, 16);
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return base64_encode($key2);
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}
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/**
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* 填充算法
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* @param string $source
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* @return string
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*/
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public static function addPKCS7Padding($source)
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{
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$source = trim($source);
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$block = @mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
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$pad = $block - (strlen($source) % $block);
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if ($pad <= $block) {
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$char = chr($pad);
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$source .= str_repeat($char, $pad);
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}
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return $source;
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}
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/**
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* 移去填充算法
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* @param string $source
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* @return string
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*/
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public static function stripPKSC7Padding($source)
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{
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$source = trim($source);
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$char = substr($source, -1);
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$num = ord($char);
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if ($num == 62) return $source;
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$source = substr($source, 0, -$num);
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return $source;
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}
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public static function sha256hashBase64($data, $hashIterations = 1024)
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{
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$str = $data;
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for ($x = 0; $x < $hashIterations; $x++) {
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$tar = hash("sha256", $str);
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$str = static::str2bin($tar);
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}
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return base64_encode($str);
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}
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public static function str2bin($hexdata)
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{
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$bindata = "";
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for ($i = 0; $i < strlen($hexdata); $i += 2) {
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$bindata .= chr(hexdec(substr($hexdata, $i, 2)));
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}
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return $bindata;
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}
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public static function decrypt($str, $screct_key, $IVS = array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0))
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{
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//AES, 128 模式加密数据 CBC
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$str = base64_decode($str);
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$IVS = implode(array_map("chr", $IVS));
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$screct_key = static::getSercrtCode($screct_key);
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$screct_key = base64_decode($screct_key);
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$iv = @mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC), 1);
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// $encrypt_str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_CBC，$IVS );
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$encrypt_str = @mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_CBC, $IVS);
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$encrypt_str = trim($encrypt_str);
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//$encrypt_str = static::stripPKSC7Padding($encrypt_str);
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return $encrypt_str;
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}
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/**
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*url 安全的base64编码 sunlonglong
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*/
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function base64url_encode($data)
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{
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return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
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}
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/**
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*url 安全的base64解码 sunlonglong
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*/
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function base64url_decode($data)
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{
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return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT));
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}
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}
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