Question

有人知道如何在java中加密并在nodejs中解密吗？无论算法如何，aes / cbc会更好但无关紧要。

经过几天和几天的搜索解决方案，似乎两种语言的算法不一样。

这是我在kotlin / java中的代码：

override fun onCreate(savedInstanceState: Bundle?)
{
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    val text = "Hello everybody !"
    val password = "1234567812345678"

    val encrypted = encrypt(text, password)
    Log.i("MainActivity", "encrypted = $encrypted")
    val decrypted = decrypt(encrypted, password)
    Log.i("MainActivity", "decrypted = $decrypted")
}

private fun encrypt(text: String, password: String): String
{
    val keySpec = SecretKeySpec(password.toByteArray(), "AES")
    val ivSpec = IvParameterSpec(password.toByteArray())
    val cipher = Cipher.getInstance("AES/CBC/PKCS5Padding")
    cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec)

    val results = cipher.doFinal(text.toByteArray())

    return Base64.encodeToString(results, Base64.NO_WRAP or Base64.DEFAULT)
}

private fun decrypt(text: String, password: String): String
{
    val keySpec = SecretKeySpec(password.toByteArray(), "AES")
    val ivSpec = IvParameterSpec(password.toByteArray())
    val cipher = Cipher.getInstance("AES/CBC/PKCS5Padding")
    cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec)

    return String(cipher.doFinal(Base64.decode(text, Base64.DEFAULT)))
}

这是我在nodejs中的代码：

var crypto = require('crypto');


var text = "Hello everybody !"
var password = new Buffer("1234567812345678")
console.log("Password = " + password)


var encrypted = encrypt(text, password)
console.log("Encrypted = " + encrypted)

var decrypted = decrypt(encrypted, password)
console.log("Decrypted = " + decrypted)

function encrypt(data, password)
{
    var cipher = crypto.createCipheriv('aes-128-cbc', password, password);
    var crypted = cipher.update(data, 'utf8', 'hex');
    crypted += cipher.final('hex');
    return crypted;
}

function decrypt(data, password)
{
    var decipher = crypto.createDecipheriv('aes-128-cbc', password, password);
    var dec = decipher.update(data, 'hex', 'utf8');
    dec += decipher.final('utf8');
    return dec;
}

我已经阅读了所有相关的教程，但没有任何工作。

Answer 1

如果您打算将代码用于此类字符串，那么您的代码几乎完全正确。您只需在node.js部分中使用不正确的编码。

将node.js的加密和解密更改为base64，如下所示：

function encrypt(data, password)
{
    var cipher = crypto.createCipheriv('aes-128-cbc', password, password);
    var crypted = cipher.update(data, 'utf8', 'base64');
    crypted += cipher.final('base64');
    return crypted;
}

function decrypt(data, password)
{
    var decipher = crypto.createDecipheriv('aes-128-cbc', password, password);
    var dec = decipher.update(data, 'base64', 'utf8');
    dec += decipher.final('utf8');
    return dec;
}

并将java部分中的base64编码更改为以下内容：

private fun encrypt(text: String, password: String): String
{
    ...
    return Base64.getEncoder().encodeToString(results)
}

private fun decrypt(text: String, password: String): String
{
    ...
    return String(cipher.doFinal(Base64.getDecoder().decode(text)))
}

现在Java和node.js的加密/解密结果匹配。：）

将java加密到js并解密

1 个答案: