HarmonyOS 端使用AES加密后与其他系统原生ASE加密结果不一致？

Question

这边使用的crypto-js库中的AES加密，加密结果与原生不一致

加密Key：newaircloud\_vjow9Dej\#JDj4[oIDF

加密内容：hello

1、Harmony加密结果为：

U2FsdGVkX1+wy+1cu6TccUuUTfLsoqBUABqEfq6VbfQ=

2、其他系统加密结果为：

uii2zrC//NtuUbcBfDSKvA==

Answer 1

aes128 cbc pkcs7的加密方法 这里加密解密都是没问题的代码demo实例如下

import { cryptoFramework } from '@kit.CryptoArchitectureKit';
import { buffer, util } from '@kit.ArkTS';

@Entry
@Component
struct AESCBCCrypto {
  @State message: string = '点击开始';

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
          .onClick(() => {
            aesCBC()
          })
      }
      .width('100%')
    }
    .height('100%')
  }
}
// iv生成
function genIvParamsSpec() {
  let arr = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; // 16 bytes
  let dataIv = new Uint8Array(arr);
  let ivBlob: cryptoFramework.DataBlob = { data: dataIv };
  let ivParamsSpec: cryptoFramework.IvParamsSpec = {
    algName: "IvParamsSpec",
    iv: ivBlob
  };
  return ivParamsSpec;
}
// 加密消息
async function encryptMessagePromise(symKey: cryptoFramework.SymKey, plainText: cryptoFramework.DataBlob) {
  let cipher = cryptoFramework.createCipher('AES128|CBC|PKCS7');
  let iv = genIvParamsSpec();
  await cipher.init(cryptoFramework.CryptoMode.ENCRYPT_MODE, symKey, iv);
  let cipherData = await cipher.doFinal(plainText);
  return cipherData;
}
// 解密消息
async function decryptMessagePromise(symKey: cryptoFramework.SymKey, cipherText: cryptoFramework.DataBlob) {
  let decoder = cryptoFramework.createCipher('AES128|CBC|PKCS7');
  let iv = genIvParamsSpec();
  await decoder.init(cryptoFramework.CryptoMode.DECRYPT_MODE, symKey, iv);
  let decryptData = await decoder.doFinal(cipherText);
  return decryptData;
}
// key生成
async function genSymKeyByData(symKeyData: Uint8Array) {
  let symKeyBlob: cryptoFramework.DataBlob = { data: symKeyData };
  let aesGenerator = cryptoFramework.createSymKeyGenerator('AES128');
  let symKey = await aesGenerator.convertKey(symKeyBlob);
  console.info('convertKey success');
  return symKey;
}

async function aesCBC() {
  try {
    let base64 = new util.Base64Helper();

    let pk = 'fxkyVote2023#!05';
    let key = new Uint8Array(buffer.from(pk, 'utf-8').buffer);

    let symKey = await genSymKeyByData(key);

    let message = "hello";
    let newBuf = buffer.from(buffer.from(message, 'utf-8').buffer);

    let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(newBuf.buffer) };
    let encryptText = await encryptMessagePromise(symKey, plainText);

    console.error('encrypt plainText: ' + base64.encodeToStringSync(encryptText.data));

    let decryptText = await decryptMessagePromise(symKey, encryptText);
    if (plainText.data.toString() === decryptText.data.toString()) {
      console.error('decrypt plainText: ' + buffer.from(decryptText.data).toString('utf-8'));
    } else {
      console.error('decrypt failed');
    }
  }catch (error){
    console.error(JSON.stringify(error));
  }
}

输出：

decrypt plainText: 2FJF+RtXz+D3y3ZA/+zvyg==
decrypt plainText: hello