HarmonyOS 模拟器是否支持crypto-js？

Question

模拟器是否支持crypto-js？目前发现模拟器在加密这块会有闪退，sm4Encode of undefined 。

static sm4Encode(d121, e121, f121) {
  if (f121 === undefined) {
    f121 = YTCryptoUtil.SM4_PADDING_TYPE_SPACE;
  }
  if (f121 === YTCryptoUtil.SM4_PADDING_TYPE_PKCS5) {
    let i121 = 16 - d121.length % 16;
    if (i121 !== 0) {
      d121 = d121 + String.fromCharCode(i121).repeat(i121);
    }
  } else if (f121 === YTCryptoUtil.SM4_PADDING_TYPE_SPACE) {
    let g121 = d121.length % 16;
    let h121 = g121 === 0 ? 0 : 16 - d121.length % 16;
    if (h121 !== 0) {
      d121 = d121 + " ".repeat(h121);
    }
  }
  return YTCrypto.sm4Encode(d121, e121);
}

Answer 1

crypto-js是可以在模拟器上运行的，但是如果传参不符的话，会直接闪退。以下sm4| ECB | nopadding为例：

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

@Entry
@Component
struct SM4Crypto {
  @State message: string = '点击开始';

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
          .onClick(() => {
            SM4CryptoMain()
          })
      }
      .width('100%')
    }
    .height('100%')
  }
}

async function SM4CryptoMain() {
  const sKey: string = "397A3043326377365369586D4C625958";
  const symKeyData = buffer.from(sKey, 'hex')//  hex    utf-8
  let symKeyDataUint8Array = new Uint8Array(symKeyData.buffer)
  let symKey = await genSymKeyByData(symKeyDataUint8Array);
  let text = "BFABDF84112C3A2737CAAD36E1C2E041";
  let newBuf = buffer.from(buffer.from(text, 'utf-8').buffer);
  let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(newBuf.buffer) };
  let encryptText = await encryptMessagePromise(symKey, plainText);
  console.info('encryptText plainText: ' + encryptText);
  console.error('encryptText plainText: ' + buffer.from(encryptText.data).toString());
  let newBuf1 = buffer.from(buffer.from("BFABDF84112C3A2737CAAD36E1C2E041", 'hex').buffer);
  let encryptoText: cryptoFramework.DataBlob = { data: new Uint8Array(newBuf1.buffer) };
  let decryptText = await decryptMessagePromise(symKey, encryptoText);
  console.error('decrypt plainText: ' + buffer.from(decryptText.data).toString('utf-8'));
  console.error('decrypt plainText: ' + buffer.from(decryptText.data).toString('hex'));
}

// 加密消息
async function encryptMessagePromise(symKey: cryptoFramework.SymKey, plainText: cryptoFramework.DataBlob) {
  let cipher = cryptoFramework.createCipher('SM4_128|ECB|NoPadding');
  await cipher.init(cryptoFramework.CryptoMode.ENCRYPT_MODE, symKey, null);
  let encryptData = await cipher.doFinal(plainText);
  console.log(`加密成功`)
  return encryptData;
}

// 解密消息
async function decryptMessagePromise(symKey: cryptoFramework.SymKey, cipherText: cryptoFramework.DataBlob) {
  let decoder = cryptoFramework.createCipher('SM4_128|ECB|NoPadding');
  await decoder.init(cryptoFramework.CryptoMode.DECRYPT_MODE, symKey, null);
  let decryptData = await decoder.doFinal(cipherText);
  console.log(`解密成功 ${buffer.from(decryptData.data).toString()}`)
  return decryptData;
}

async function genSymKeyByData(symKeyData: Uint8Array) {
  let symKeyBlob: cryptoFramework.DataBlob = { data: symKeyData };
  let symGenerator = cryptoFramework.createSymKeyGenerator('SM4_128');
  let symKey = await symGenerator.convertKey(symKeyBlob);
  console.log(`sm4 转密钥成功`)
  return symKey;
}