我想用javascript加密本地zip文件，然后用java解密。我使用了此鏈接中的代碼https://www.devglan.com/corejava/aes-encryption-javascript-and-decryption-in-java在javascript中加密var AesUtil = function (keySize, iterationCount) { this.keySize = keySize / 32; this.iterationCount = iterationCount;};AesUtil.prototype.generateKey = function (salt, passPhrase) { var key = CryptoJS.PBKDF2( passPhrase, CryptoJS.enc.Hex.parse(salt), {keySize: this.keySize, iterations: this.iterationCount}); return key;};AesUtil.prototype.encrypt = function (salt, iv, passPhrase, plainText) { var key = this.generateKey(salt, passPhrase); var encrypted = CryptoJS.AES.encrypt( plainText, key, {iv: CryptoJS.enc.Hex.parse(iv)}); return encrypted.ciphertext.toString(CryptoJS.enc.Base64);};AesUtil.prototype.decrypt = function (salt, iv, passPhrase, cipherText) { var key = this.generateKey(salt, passPhrase); var cipherParams = CryptoJS.lib.CipherParams.create({ ciphertext: CryptoJS.enc.Base64.parse(cipherText) }); var decrypted = CryptoJS.AES.decrypt( cipherParams, key, {iv: CryptoJS.enc.Hex.parse(iv)}); return decrypted.toString(CryptoJS.enc.Utf8);};var CryptoJS = require('crypto-js'), fs = require('fs');var data = fs.readFileSync("C:\\<my_path>\\scripts.zip");var passPhrase = "123456789123456789";var iv = "a145525c53eafb0258999612b13d9d3e"; //CryptoJS.lib.WordArray.random(128 / 8).toString(CryptoJS.enc.Hex);var salt = "ca70e17a698096cfb42047926713dd62";// CryptoJS.lib.WordArray.random(128 / 8).toString(CryptoJS.enc.Hex);var aesUtil = new AesUtil(128, 1000);var ciphertext = aesUtil.encrypt(salt, iv, passPhrase, data.toString());fs.writeFileSync('C:/Output.encrypted', ciphertext);
1 回答
蕭十郎
TA貢獻1815條經驗 獲得超13個贊
在大多數語言中，將 Zip 文件之類的二進制內容視為字符串通常是一個大錯誤。在 Javascript 方面，CryptoJS 期望提供任意字節序列作為CryptoJS.lib.WordArray參數。
所以，而不是
var ciphertext = aesUtil.encrypt(salt, iv, passPhrase, data.toString());
你應該有
var ciphertext = aesUtil.encrypt(salt, iv, passPhrase, CryptoJS.lib.WordArray.create(data));
在 Java 端，將函數 decrypt 更改為返回一個byte[].
public byte[] decrypt(String salt, String iv, String passphrase, String ciphertext) {
SecretKey key = generateKey(salt, passphrase);
byte[] decrypted = doFinal(Cipher.DECRYPT_MODE, key, iv, base64(ciphertext));
return decrypted;
}
在 中main，將代碼更改為類似于
String fileString = new String(Files.readAllBytes(Paths.get(encryptedPath)));
byte [] decryptedText = aesUtil.decrypt(salt, iv, keyString, fileString);
Files.write(Paths.get(decryptedPath), decryptedText);
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