• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1/*
2 * Copyright (c) 2025 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16// [Start convert_ecc_uncompressed_pub_keypair]
17import { cryptoFramework } from '@kit.CryptoArchitectureKit';
18
19async function eccPubUncompressedToCompressed() {
20  let pkData =
21    new Uint8Array([48, 90, 48, 20, 6, 7, 42, 134, 72, 206, 61, 2, 1, 6, 9, 43, 36, 3, 3, 2, 8, 1, 1, 7, 3, 66, 0, 4,
22      143, 39, 57, 249, 145, 50, 63, 222, 35, 70, 178, 121, 202, 154, 21, 146, 129, 75, 76, 63, 8, 195, 157, 111, 40,
23      217, 215, 148, 120, 224, 205, 82, 83, 92, 185, 21, 211, 184, 5, 19, 114, 33, 86, 85, 228, 123, 242, 206, 200, 98,
24      178, 184, 130, 35, 232, 45, 5, 202, 189, 11, 46, 163, 156, 152]);
25  let pubKeyBlob: cryptoFramework.DataBlob = { data: pkData };
26  let generator = cryptoFramework.createAsyKeyGenerator('ECC_BrainPoolP256r1');
27  let keyPair = await generator.convertKey(pubKeyBlob, null);
28  let returnBlob = keyPair.pubKey.getEncodedDer('X509|COMPRESSED');
29  console.info('returnBlob data：' + returnBlob.data);
30}
31// [End convert_ecc_uncompressed_pub_keypair]
32
33@Entry
34@Component
35struct Index {
36  @State message: string = 'SpecifyUncompressedPublicKey';
37
38  build() {
39    Column({ space: 12 }) {
40      Text(this.message).fontSize(20).fontWeight(FontWeight.Bold)
41      Button($r('app.string.call_specifyUncompressedPublicKey'))
42        .width('70%')
43        .onClick(async () => {
44          try {
45            await eccPubUncompressedToCompressed();
46            this.message = 'SpecifyUncompressedPublicKey Success';
47          } catch {
48            this.message = 'SpecifyUncompressedPublicKey Fail';
49          }
50        })
51    }
52    .height('100%')
53    .width('100%')
54  }
55}