HarmonyOS RSA加密的base64秘钥转换

尝试后台是否能解开 以下为使用公钥进行加密的base64格式的字符串 ：

base64 encrypted result string:SbdMhoDQFP5GWk3U8nvOxTTCUEMgMKYa.......T7KZYXYc8FkWWL+nNbv1CuEn3pVgh8aYjKZNPw9C3xJvlK28o2wWp3w8YX9LIKz31shF4SZg7Kpa8czwIM85ub0WPNay+E3LIXMU+16PlMMf7umJ0od9sDWMTPjdOOzWb9+gbYfmY7gZdvZLnqEBBuM8duxLMnjsB3KeCmp4o+us3FG9T2SN4LoUse1xDjSV3dsSBjKyWBptDvfZQADnqolW0r9KTtu2Q54VtJ7M1oft8pUCL69xUG6x/qWjt2HuTv4Wp2nfeSP+0mGGA==
1.

使用的RSA1024|PKCS1 模式 代码如下

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

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

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
          .onClick(() => {
            rsa1024Crypto()
          })
      }
      .width('100%')
    }
    .height('100%')
  }
}

// 加密消息
async function encryptMessagePromise(publicKey: cryptoFramework.PubKey, plainText: cryptoFramework.DataBlob) {
  let cipher = cryptoFramework.createCipher('RSA1024|PKCS1');
  await cipher.init(cryptoFramework.CryptoMode.ENCRYPT_MODE, publicKey, null);
  let encryptData = await cipher.doFinal(plainText);
  return encryptData;
}
// 解密消息
async function decryptMessagePromise(privateKey: cryptoFramework.PriKey, cipherText: cryptoFramework.DataBlob) {
  let decoder = cryptoFramework.createCipher('RSA1024|PKCS1');
  await decoder.init(cryptoFramework.CryptoMode.DECRYPT_MODE, privateKey, null);
  let decryptData = await decoder.doFinal(cipherText);
  return decryptData;
}
// 生成RSA密钥对
async function genKeyPairByData(pubKeyData: Uint8Array, priKeyData: Uint8Array) {
  let pubKeyBlob: cryptoFramework.DataBlob = { data: pubKeyData };
  let priKeyBlob: cryptoFramework.DataBlob = { data: priKeyData };
  let rsaGenerator = cryptoFramework.createAsyKeyGenerator('RSA1024');
  let keyPair = await rsaGenerator.convertKey(pubKeyBlob, priKeyBlob);
  console.info('convertKey success');
  return keyPair;
}
async function rsa1024Crypto() {

  let keyP = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtYPCnyI7KlbdwBCVTPK........oAGdNi7N6ySwzkf0xzT40qC3axlKCAFAdrdWfnYq2tHgM2N81bk7pZty4PytsEnTcYbsac5/miop74kInsmX9XiTwRah/tDNq/gV4ilThbJL3QEoBdmrQQxX5tx8O00IBFfeeXh00n2YROnwPxzsGnT8RtFLYeMv4XqQ5+eotEFItc20UmLEETLnkd8DcuVgMe+EF6wD8S7XU8wTRyNB9XDtUNNCpApUqPXK8L7u+MWUYwV4VnFoa13F/Er67x1/At7dt2eTbcnAaYnoXkm1B8X4P+Q8NFjgjwIDAQAB"
  let base64 = new util.Base64Helper();
  let base64pkData = base64.decodeSync(keyP )
  let base64skData = new Uint8Array /*base64.decodeSync(skData )*/;

  let keyPair = await genKeyPairByData(base64pkData, base64skData);
  let pubKey = keyPair.pubKey;
  // let priKey = keyPair.priKey;

  let message = " This is a long plainTest!"/*'This is a test'*/;
  // let messageBase64 = 'BN+lPyyHzI1N3V3zn6iEySK+J9U1AqYZJq7EsFaoZNoVOlNnZryFwioJvlnBuj8jXINxy25xLroh/j98d2GRbvE0NQBql0baJ6HKsNLbp1PiqXjfWBHlDByhijGS42TgI07bLDTph3mYuM7nXxzEqfKRiowLYBqX0Z2d2m6j4NM='
  // 把字符串按utf-8解码为Uint8Array
  let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(/*base64.decodeSync(messageBase64)*/buffer.from(message, 'utf-8').buffer) };
  let encryptText = await encryptMessagePromise(pubKey, plainText);
  // let messageEncrypted = buffer.from(encryptText.data).toString('utf-8');
  let base64EncryptoText = base64.encodeToStringSync(new Uint8Array(encryptText.data))
  console.error('base64 encrypted result string:' + base64EncryptoText);

  try{
    // let decryptText = await decryptMessagePromise(priKey, plainText);
  } catch (error){
    console.error(JSON.stringify(error) );
  }

  /*let baseDecrypto = base64.encodeToStringSync(decryptText.data)
  console.error('base64 decrypted result string:' + baseDecrypto);

  let messageDecrypted = buffer.from(decryptText.data).toString('utf-8');
  console.error('decrypted result string:' + messageDecrypted);*/
}
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