php与nodejs的加密数据互通

Question

nodejs的加密解密代码示例如下：

#!/usr/bin/env node
    var crypto = require('crypto');
    //解密
    function decode(cryptkey, iv, secretdata) {
        var 
        decipher = crypto.createDecipheriv('aes-256-cbc', cryptkey, iv),
        decoded  = decipher.update(secretdata, 'base64', 'utf8');
        
        decoded += decipher.final( 'utf8' );
        return decoded;
    }
    //解密
    function encode(cryptkey, iv, cleardata) {
        var 
        encipher = crypto.createCipheriv('aes-256-cbc', cryptkey, iv),
        encoded  = encipher.update(cleardata, 'utf8', 'base64');

        encoded += encipher.final( 'base64' );
        return encoded;
    }

    var 
    cryptkey   = crypto.createHash('sha256').update('__tazai_wolf__key').digest(),
    iv         = '1234567890000000',
    buf        = "Hello World",
    enc        = encode( cryptkey, iv, buf );

    var dec        = decode(cryptkey, iv, enc);

    function b64enc(data) {
        var b   = new Buffer(data, 'binary');
        return b.toString('base64');
    }

console.warn("Encoded length: ", enc);
console.warn("Decoded all: " + dec);

请问php能相应的加密解密代码应该如何写？
要求能解上面加密后的如：Gpkr1WGBFhMvNd/Hr0eaBg==
也能加密数据给nodejs进行解密。

Answer 1

使用php的openssl_encrypt和openssl_decrypt，可以方便地实现，可参考如下代码:

$key = hash('sha256','__tazai_wolf__key', true);
$iv = "1234567890000000";

$text = "Hello World";
$encrypted = openssl_encrypt($text,'aes-256-cbc',$key,false,$iv);    // 加密
echo $encrypted;

$decrypted = openssl_decrypt($encrypted,'aes-256-cbc',$key,false,$iv);    // 解密
echo $decrypted;