create X509Cert failed：401 HarmonyOS 鸿蒙Next

async getPublicKey(encodingData: Uint8Array): Promise<cryptoFramework.PubKey | null> {
  return new Promise((resolve, reject) => {
    let encodingBlob: certFramework.EncodingBlob = {
      data: encodingData,
      // 根据encodingData的格式进行赋值，支持FORMAT_PEM和FORMAT_DER
      encodingFormat: certFramework.EncodingFormat.FORMAT_PEM
    };
    certFramework.createX509Cert(encodingBlob).then(x509Cert => {
      console.log(‘createX509Cert success’);
      resolve(x509Cert.getPublicKey());
    }).catch((error) => {
      console.error('createX509Cert failed, errCode: ’ + error.code + ', errMsg: ’ + error.message);
      reject(error);
    });
  });

}

证书二进制数据：encodingData是正确的数据，但是createX509Cert报401错误，求解答