HarmonyOS 鸿蒙Next 使用AES对称密钥（CBC模式）加解密，生成symKey失败

使用AES对称密钥（CBC模式）加解密，生成symKey失败 已解决 使用官方代码进行AES解密数据，生成symKey失败

传入参数秘钥key：f951cbcc2d3d8f4de802744d8fe6103d 传入参数iv：563b7a6e46394561b9cd6e93564f1632

代码如下：

import cryptoFramework from '@ohos.security.cryptoFramework';
import buffer from '@ohos.buffer';

/**
 * AES解密方法
 * @param key 秘钥
 * @param iv
 * @param data 待解密数据
 * @returns
 */
export async function aes128CBC_decrypt(key: string, iv: string, data: ArrayBuffer): Promise<cryptoFramework.DataBlob> {
  let keyData = new Uint8Array(buffer.from(key, 'utf-8').buffer);
  // let keyData = stringToUint8Array(key);
  let length = key.length;
  let symKey = await genSymKeyByData(keyData);
  let decryptData: cryptoFramework.DataBlob = { data: new Uint8Array(data) };
  let decryptDataSuccess = await decryptMessagePromise(symKey, iv, decryptData);
  return decryptDataSuccess;
}

//生成CBC模式的ivParamsSpec
function genIvParamsSpec(iv: string) {
  let dataIv = stringToUint8Array(iv);
  let ivBlob: cryptoFramework.DataBlob = { data: dataIv };
  let ivParamsSpec: cryptoFramework.IvParamsSpec = {
    algName: "IvParamsSpec",
    iv: ivBlob
  };
  return ivParamsSpec;
}

//生成密钥算法为AES、密钥长度为128位的对称密钥（SymKey）
async function genSymKeyByData(symKeyData: Uint8Array) {
  let symKeyBlob: cryptoFramework.DataBlob = { data: symKeyData };
  let aesGenerator = cryptoFramework.createSymKeyGenerator('AES128');
  let symKey = await aesGenerator.convertKey(symKeyBlob); //---错误步骤
  console.info('convertKey success');
  return symKey;
}

// 解密消息
async function decryptMessagePromise(symKey: cryptoFramework.SymKey, iv: string, cipherText: cryptoFramework.DataBlob) {
  let decoder = cryptoFramework.createCipher('AES128|CBC|PKCS7');
  let ivParamsSpec = genIvParamsSpec(iv);
  await decoder.init(cryptoFramework.CryptoMode.DECRYPT_MODE, symKey, ivParamsSpec);
  let decryptData = await decoder.doFinal(cipherText);
  return decryptData;
}

接口获取服务端返回加密后的二进制数据进行解密，在生成symKey的环节就报错，没有到解密数据环节