HarmonyOS 生成非对称密钥报错 Error: convert key fail.

import { cryptoFramework } from '@kit.CryptoArchitectureKit'; 
import { buffer, util } from '@kit.ArkTS'; 
 
export class CECryptoUtil { 
  public static stringToUint8Array(content: string): Uint8Array { 
    let textEncoder = new util.TextEncoder(); 
    let buffer = new ArrayBuffer(10000); 
    let result = new Uint8Array(buffer); 
    result = textEncoder.encodeInto(content); 
    console.info("buffer is ", result) 
    return result 
  } 
 
  static async rsaEncrypt(publicKey: string, content: string) { 
    let publicData = CECryptoUtil.stringToUint8Array(publicKey) 
    // let keyPair = await CECryptoUtil.genKeyPublicByData(publicData); 
    let keyPair = await CECryptoUtil.genKeyPublicByData(new Uint8Array([48, 129, 159, 48, 13, 6, 9, 42, 134, 72, 134, 247, 13, 1, 1, 1, 5, 0, 3, 129, 141, 0, 48, 129, 137, 2, 129, 129, 0, 197, 64, 10, 198, 14, 110, 65, 92, 206, 35, 28, 123, 153, 24, 134, 255, 145, 74, 42, 173, 40, 215, 146, 58, 143, 46, 10, 195, 154, 160, 69, 196, 220, 152, 179, 44, 111, 200, 84, 78, 215, 73, 210, 181, 12, 29, 70, 68, 36, 135, 153, 89, 230, 202, 130, 212, 111, 243, 234, 92, 131, 62, 145, 50, 73, 48, 104, 245, 46, 70, 45, 157, xxx, 143, 140, 162, xxxx, 216xxx 220, 49, 121, 142, 194, 33, 223, 201, 0, 16, 163, 210, 240, 118, 92, 147, 121, 220, 17, 114, 24, 52, 125, 135, 176, 88, 21, 83, 86, 17, 156, 88, 250, 48, 79, 86, 128, 248, 105, 208, 133, 140, 13, 153, 164, 191, 136, 164, 44, 53, 2, 3, 1, 0, 1])); 
    console.info("keyPair.pubKey.format is ", keyPair.pubKey.format) 
    let cipher = cryptoFramework.createCipher('RSA1024|PKCS1'); 
    await cipher.init(cryptoFramework.CryptoMode.ENCRYPT_MODE, keyPair.pubKey, null); 
    let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(buffer.from(content, 'utf-8').buffer) }; 
    let encryptData = await cipher.doFinal(plainText); 
    let base64 = new util.Base64Helper(); 
    let encodeString = base64.encodeToStringSync(encryptData.data) 
    return encodeString; 
  } 
 
  static async genKeyPublicByData(pubKeyData: Uint8Array) { 
    let pubKeyBlob: cryptoFramework.DataBlob = { data: pubKeyData }; 
    let rsaGenerator = cryptoFramework.createAsyKeyGenerator('RSA1024'); 
    try { 
      let keyPair = await rsaGenerator.convertKey(pubKeyBlob, null); 
      return keyPair; 
    } 
    catch (err) { 
      console.info("convertKey ", err) 
    } 
    let keyPair = await rsaGenerator.convertKey(pubKeyBlob, null); 
    return keyPair 
  } 
}