HarmonyOS AES算法加解密结果不一致？

Question

数据加解密格式AES/CBC/PKCS5padding无法对应，输出结果不一致。

Answer 1

输出：

encrypt 16进制 plainText: d5c3020464e75d530de9d5fb62cc2e97
encrypt base64 plainText: 1cMCBG***6dX7Yswulw==
encrypt plainText: d5c30204***fb62cc2e97
decrypt plainText: hello,world!
decrypt ok104,101,108,108,111,44,119,111,114,108,100,33

以下是AES/CBC/PKCS5

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%')
  }
}

function genIvParamsSpec() {
  let arr = [228, 174, 73, 141, 198, 234, 26, 204, 141, 187, 217, 9, 225, 108, 17, 86]; // 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
function encryptMessage(symKey: cryptoFramework.SymKey, plainText: cryptoFramework.DataBlob) {
  let cipher = cryptoFramework.createCipher('AES128|CBC|PKCS5');
  let iv = genIvParamsSpec();
  cipher.initSync(cryptoFramework.CryptoMode.ENCRYPT_MODE, symKey, iv);
  let cipherData = cipher.doFinalSync(plainText);
  return cipherData;
}

// 解密消息
function decryptMessage(symKey: cryptoFramework.SymKey, cipherText: cryptoFramework.DataBlob) {
  let decoder = cryptoFramework.createCipher('AES128|CBC|PKCS5');
  let iv = genIvParamsSpec();
  decoder.initSync(cryptoFramework.CryptoMode.DECRYPT_MODE, symKey, iv);
  // let decryptData = decoder.updateSync(cipherText);
  let decryptData = decoder.doFinalSync(cipherText);
  return decryptData;
}

function genSymKeyByData(symKeyData: Uint8Array) {
  let symKeyBlob: cryptoFramework.DataBlob = { data: symKeyData };
  let aesGenerator = cryptoFramework.createSymKeyGenerator('AES128');
  let symKey = aesGenerator.convertKeySync(symKeyBlob);
  console.info('convertKey success');
  return symKey;
}

function aesCBC() {
  try {
    let base64 = new util.Base64Helper();
    let pk = "1234567891234567";
    let key = new Uint8Array(buffer.from(pk, 'utf-8').buffer)
    let symKey = genSymKeyByData(key);
    let text = "hello,world!";
    let newBuf = buffer.from(buffer.from(text, 'utf-8').buffer);
    let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(newBuf.buffer) };
    let encryptText = encryptMessage(symKey, plainText);
    console.error('encrypt 16进制 plainText: ' + buffer.from(encryptText.data).toString('hex'));
    console.error('encrypt base64 plainText: ' + base64.encodeToStringSync(encryptText.data));
    console.error('encrypt plainText: ' + buffer.from(encryptText.data).toString('hex'));
    let decryptText = decryptMessage(symKey, encryptText);
    console.error('decrypt plainText: ' + buffer.from(decryptText.data).toString('utf-8'));
    console.error('decrypt ok' + decryptText.data.toString());
  } catch (error) {
    console.error(JSON.stringify(error));
  }
}