您好,我需要使用加密模块将我的PHP加密函数转换为Nodejs的帮助:
此代码已经有效
// Constructor params
$this->algorithm = "blowfish";
$this->token = "3SzzaErRzj0#RuGr@JTkh[MO0AMIW*d!Sul/CEL!*rPnq$oOEgYaH}fNw{jw1b/DyLUdL])+JOMES@Z7MIRI>(p*nY{yl%h]4ylx";
public function decrypt($string)
{
$key = hash('sha256', $this->token);
list($encrypted_data, $iv) = explode('::', base64_decode($string), 2);
return openssl_decrypt($encrypted_data, $this->algorithm, $key, 0, $iv);
}
public function encrypt($string)
{
$output = false;
$iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length($this->algorithm));
// hash
$key = hash('sha256', $this->token);
$output = openssl_encrypt($string, $this->algorithm, $key, 0, $iv);
return base64_encode($output . '::' . $iv);
}
和nodejs中的代码,我使解密工作正常,但是密码不工作
const crypto = require('crypto');
const decipher = async (alg, key, value) => {
const hash = crypto.createHash('sha256');
hash.update(key);
let token = hash.digest('hex');
let buff = new Buffer.from(value, 'base64');
let [encrypted, iv] = buff.toString('ascii').split('::', 2);
iv = new Buffer.from(iv);
const decipher = crypto.createDecipheriv(alg, token, iv);
let decrypted = await decipher.update(encrypted, 'base64', 'ascii');
decrypted += decipher.final('ascii');
return decrypted;
}
/* this one is not working */
const cipher = async (alg, key, value) => {
let iv = crypto.randomBytes(8);
var sha256 = crypto.createHash('sha256');
sha256.update(key);
var newkey = sha256.digest('base64');
var encryptor = await crypto.createCipheriv(alg, newkey, iv);
encrypted = encryptor.update(value, 'utf8', 'base64') + encryptor.final('base64');
var final = encrypted + "::" +iv;
let buf = Buffer.from(final);
let encodedData = buf.toString('base64');
return encodedData;
}
感谢任何帮助我完成工作的帮助
必须在NodeJS代码的cipher
方法中进行以下更改:
密钥必须以十六进制编码:
var newkey = sha256.digest('hex');
IV必须附加为二进制字符串:
var final = encrypted + "::" + iv.toString('binary');
并且必须将数据解析为二进制字符串:
let buf = Buffer.from(final, 'binary');
通过这些更改,NodeJS代码中的cipher
方法与PHP代码中的encrypt
方法兼容。
cipher
方法使用UTF8编码,decipher
方法使用ASCII编码,因此只有ASCII编码文本可以正确解密。要消除对ASCII编码的限制,在decipher
方法中需要进行以下更改:
编码为二进制字符串必须使用binary
而不是ascii
:
let [encrypted, iv] = buff.toString('binary').split('::', 2);
iv = new Buffer.from(iv, 'binary');
并且输出编码必须为utf8
而不是ascii
:
let decrypted = decipher.update(encrypted, 'base64', 'utf8');
decrypted += decipher.final('utf8');
通过这些更改,NodeJS和PHP代码是兼容的。另请注意:
async
/ await
。 new
之前的Buffer.from
可以省略。blowfish
指定了算法,它对应于bf-cbc
,表示CBC模式下的河豚。