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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
17// [Start create_parse_validate_certificate_extension_info_objects]
18
19import { cert } from '@kit.DeviceCertificateKit';
20import { BusinessError } from '@kit.BasicServicesKit';
21import { util } from '@kit.ArkTS';
22
23// 证书扩展数据，以下只是一个示例。需要根据具体业务来赋值
24let extData = new Uint8Array([
25  0x30, 0x40, 0x30, 0x0F, 0x06, 0x03, 0x55, 0x1D,
26  0x13, 0x01, 0x01, 0xFF, 0x04, 0x05, 0x30, 0x03,
27  0x01, 0x01, 0xFF, 0x30, 0x0E, 0x06, 0x03, 0x55,
28  0x1D, 0x0F, 0x01, 0x01, 0xFF, 0x04, 0x04, 0x03,
29  0x02, 0x01, 0xC6, 0x30, 0x1D, 0x06, 0x03, 0x55,
30  0x1D, 0x0E, 0x04, 0x16, 0x04, 0x14, 0xE0, 0x8C,
31  0x9B, 0xDB, 0x25, 0x49, 0xB3, 0xF1, 0x7C, 0x86,
32  0xD6, 0xB2, 0x42, 0x87, 0x0B, 0xD0, 0x6B, 0xA0,
33  0xD9, 0xE4
34]);
35
36// 证书扩展示例
37function certExtensionSample(): void {
38  let textEncoder = new util.TextEncoder();
39  let encodingBlob: cert.EncodingBlob = {
40    data: extData,
41    // 证书扩展格式，目前仅支持DER格式
42    encodingFormat: cert.EncodingFormat.FORMAT_DER
43  };
44
45  // 创建一个证书扩展实例
46  cert.createCertExtension(encodingBlob, (err, certExtension) => {
47    if (err != null) {
48      // 证书扩展实例创建失败
49      console.error(`createCertExtension failed, errCode:${err.code}, errMsg:${err.message} `);
50      return;
51    }
52    // 证书扩展实例创建成功
53    console.log('createCertExtension success');
54
55    try {
56      // 根据OID获取证书扩展信息
57      let oidData = '2.5.29.14';
58      let oid: cert.DataBlob = {
59        data: textEncoder.encodeInto(oidData),
60      }
61      let entry = certExtension.getEntry(cert.ExtensionEntryType.EXTENSION_ENTRY_TYPE_ENTRY, oid);
62
63      // 检查证书是否为CA证书
64      let pathLen = certExtension.checkCA();
65      console.log('test cert extension success');
66    } catch (err) {
67      let e: BusinessError = err as BusinessError;
68      console.error(`operation failed, message:${e.message} ,code:${e.code} `);
69    }
70  });
71}
72
73
74// [End create_parse_validate_certificate_extension_info_objects]
75
76@Entry
77@Component
78struct Index {
79  @State message: string = 'CreateParseVerifyCertextensionObject';
80
81  build() {
82    Column({ space: 5 }) {
83      Text(this.message)
84        .fontSize(25)
85        .fontWeight(FontWeight.Bold)
86      Button('Call CreateParseVerifyCertextensionObject')
87        .width('70%')
88        .onClick(()=>{
89          try {
90            certExtensionSample();
91            this.message = 'Call Success';
92          } catch {
93            this.message = 'Call Fail';
94          }
95        })
96    }
97    .height('100%')
98    .width('100%')
99  }
100}