harmony 鸿蒙Certificate Chain Development

2025-06-12
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Certificate Chain Development

This topic walks you through on how to create a certificate chain object, obtain information about the certificates of the certificate chain, and validate the certificate chain using a trust anchor.

How to Develop

Import the certFramework module.

   import { cert } from '@kit.DeviceCertificateKit';

Use cert.createX509CertChain to create an X.509 certificate chain (X509CertChain) object.
Use x509CertChain.getCertList to obtain information about the X.509 certificates of the certificate chain.
Use x509CertChain.validate to validate the certificate chain.

import { cert } from '@kit.DeviceCertificateKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { util } from '@kit.ArkTS';

let certChainData = "-----BEGIN CERTIFICATE-----\n" +
  "MIID6jCCAtKgAwIBAgIIIM2q/TmRoLcwDQYJKoZIhvcNAQELBQAwWjELMAkGA1UE\n" +
  "BhMCRU4xEDAOBgNVBAgTB0VuZ2xhbmQxDzANBgNVBAcTBkxvbmRvbjEMMAoGA1UE\n" +
  "ChMDdHMyMQwwCgYDVQQLEwN0czIxDDAKBgNVBAMTA3RzMjAeFw0yMzEyMDUwNzM5\n" +
  "MDBaFw0yNDEwMzEyMzU5MDBaMGExCzAJBgNVBAYTAkNOMRAwDgYDVQQIEwdKaWFu\n" +
  "Z3N1MRAwDgYDVQQHEwdOYW5qaW5nMQwwCgYDVQQKEwN0czMxDDAKBgNVBAsTA3Rz\n" +
  "MzESMBAGA1UEAxMJMTI3LjAuMC4xMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB\n" +
  "CgKCAQEAtt+2QxUevbolYLp51QGcUpageI4fwGLIqv4fj4aoVnHFOOBqVOVpfCLR\n" +
  "p26LFV/F8ebwPyo8YEBKSwXzMD1573rMSbaH9BalscH5lZYAbetXoio6YRvzlcmc\n" +
  "rVvLBNMeVnxY86xHpo0MTNyP7W024rZsxWO98xFQVdoiaBC+7+midlisx2Y+7u0j\n" +
  "zT9GjeUP6JLdLFUZJKUPSTK3jVzw9v1eZQZKYoNfU6vFMd6ndtwW6qEnwpzmmX/U\n" +
  "T+p5ThAMH593zszlz330nTSXBjIsGkyvOz9gSB0Z0LAuJj06XUNhGL5xKJYKbdI3\n" +
  "8MFQFJKvRHfgTAvVsvAvpBUM2DuBKwIDAQABo4GsMIGpMAkGA1UdEwQCMAAwHQYD\n" +
  "VR0OBBYEFDfsHTMZwoA6eaDFlBUyDpka+sYtMAsGA1UdDwQEAwID+DAnBgNVHSUE\n" +
  "IDAeBggrBgEFBQcDAQYIKwYBBQUHAwIGCCsGAQUFBwMEMBQGA1UdEQQNMAuCCTEy\n" +
  "Ny4wLjAuMTARBglghkgBhvhCAQEEBAMCBkAwHgYJYIZIAYb4QgENBBEWD3hjYSBj\n" +
  "ZXJ0aWZpY2F0ZTANBgkqhkiG9w0BAQsFAAOCAQEAp5vTvXrt8ZpgRJVtzv9ss0lJ\n" +
  "izp1fJf+ft5cDXrs7TSD5oHrSW2vk/ZieIMhexU4LFwhs4OE7jK6pgI48Dseqxx7\n" +
  "B/KktxhVMJUmVXd9Ayjp6f+BtZlIk0cArPuoXToXjsV8caTGBXHRdzxpAk/w9syc\n" +
  "GYrbH9TrdNMuTizOb+k268oKXUageZNxHmd7YvOXkcNgrd29jzwXKDYYiUa1DISz\n" +
  "DnYaJOgPt0B/5izhoWNK7GhJDy9KEuLURcTSWFysbbnljwO9INPT9MmlS83PdAgN\n" +
  "iS8VXF4pce1W9U5jH7d7k0JDVSXybebe1iPFphsZpYM/NE+jap+mPy1nTCbf9g==\n" +
  "-----END CERTIFICATE-----\n" +
  "-----BEGIN CERTIFICATE-----\n" +
  "MIIC0zCCAoWgAwIBAgIIXpLoPpQVWnkwBQYDK2VwMFoxCzAJBgNVBAYTAkVOMRAw\n" +
  "DgYDVQQIEwdFbmdsYW5kMQ8wDQYDVQQHEwZMb25kb24xDDAKBgNVBAoTA3RzMTEM\n" +
  "MAoGA1UECxMDdHMxMQwwCgYDVQQDEwN0czEwHhcNMjMxMjA1MDczNzAwWhcNMjQw\n" +
  "OTAxMjM1OTAwWjBaMQswCQYDVQQGEwJFTjEQMA4GA1UECBMHRW5nbGFuZDEPMA0G\n" +
  "A1UEBxMGTG9uZG9uMQwwCgYDVQQKEwN0czIxDDAKBgNVBAsTA3RzMjEMMAoGA1UE\n" +
  "AxMDdHMyMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtt+2QxUevbol\n" +
  "YLp51QGcUpageI4fwGLIqv4fj4aoVnHFOOBqVOVpfCLRp26LFV/F8ebwPyo8YEBK\n" +
  "SwXzMD1573rMSbaH9BalscH5lZYAbetXoio6YRvzlcmcrVvLBNMeVnxY86xHpo0M\n" +
  "TNyP7W024rZsxWO98xFQVdoiaBC+7+midlisx2Y+7u0jzT9GjeUP6JLdLFUZJKUP\n" +
  "STK3jVzw9v1eZQZKYoNfU6vFMd6ndtwW6qEnwpzmmX/UT+p5ThAMH593zszlz330\n" +
  "nTSXBjIsGkyvOz9gSB0Z0LAuJj06XUNhGL5xKJYKbdI38MFQFJKvRHfgTAvVsvAv\n" +
  "pBUM2DuBKwIDAQABo28wbTAMBgNVHRMEBTADAQH/MB0GA1UdDgQWBBQ37B0zGcKA\n" +
  "OnmgxZQVMg6ZGvrGLTALBgNVHQ8EBAMCAQYwEQYJYIZIAYb4QgEBBAQDAgAHMB4G\n" +
  "CWCGSAGG+EIBDQQRFg94Y2EgY2VydGlmaWNhdGUwBQYDK2VwA0EAuasLBe55YgvF\n" +
  "b4wmHeohylc9r8cFGS1LNQ5UcSn3sGqMYf6ehnef16NLuCW6upHCs8Sui4iAMvsP\n" +
  "uKPWR9dKBA==\n" +
  "-----END CERTIFICATE-----\n" +
  "-----BEGIN CERTIFICATE-----\n"  +
  "MIIB3zCCAZGgAwIBAgIIWQvOEDl+ya4wBQYDK2VwMFoxCzAJBgNVBAYTAkVOMRAw\n" +
  "DgYDVQQIEwdFbmdsYW5kMQ8wDQYDVQQHEwZMb25kb24xDDAKBgNVBAoTA3RzMTEM\n" +
  "MAoGA1UECxMDdHMxMQwwCgYDVQQDEwN0czEwHhcNMjMxMjA1MDAwMDAwWhcNMjQx\n" +
  "MjA0MjM1OTU5WjBaMQswCQYDVQQGEwJFTjEQMA4GA1UECBMHRW5nbGFuZDEPMA0G\n" +
  "A1UEBxMGTG9uZG9uMQwwCgYDVQQKEwN0czExDDAKBgNVBAsTA3RzMTEMMAoGA1UE\n" +
  "AxMDdHMxMCowBQYDK2VwAyEAuxadj1ww0LqPN24zr28jcSOlSWAe0QdLyRF+ZgG6\n" +
  "klKjdTBzMBIGA1UdEwEB/wQIMAYBAf8CARQwHQYDVR0OBBYEFNSgpoQvfxR8A1Y4\n" +
  "St8NjOHkRpm4MAsGA1UdDwQEAwIBBjARBglghkgBhvhCAQEEBAMCAAcwHgYJYIZI\n" +
  "AYb4QgENBBEWD3hjYSBjZXJ0aWZpY2F0ZTAFBgMrZXADQQAblBgoa72X/K13WOvc\n" +
  "KW0fqBgFKvLy85hWD6Ufi61k4ProQiZzMK+0+y9jReKelPx/zRdCCgSbQroAR2mV\n" +
  "xjoE\n" +
  "-----END CERTIFICATE-----\n";

async function sample() {
  let textEncoder = new util.TextEncoder();
  // Certificate chain binary data, which may vary with the service.
  const encodingBlob: cert.EncodingBlob = {
    data: textEncoder.encodeInto(certChainData),
    // Set the encoding format, which can be FORMAT_PEM, FORMAT_DER, or FORMAT_PKCS7.
    encodingFormat: cert.EncodingFormat.FORMAT_PEM
  };
  let x509CertChain: cert.X509CertChain = {} as cert.X509CertChain;
  try {
    x509CertChain = await cert.createX509CertChain(encodingBlob);
  } catch (err) {
    let e: BusinessError = err as BusinessError;
    console.error(`createX509CertChain failed, errCode: ${e.code}, errMsg: ${e.message}`);
  }

  try {
    let certList = x509CertChain.getCertList();
  } catch (err) {
    let e: BusinessError = err as BusinessError;
    console.error(`X509CertChain getCertList failed, errCode: ${e.code}, errMsg: ${e.message}`);
  }

  // Certificate chain validation data, which may vary with the service.
  const param: cert.CertChainValidationParameters = {
    date: '20231212080000Z',
    trustAnchors: [{
      CAPubKey: new Uint8Array([0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65, 0x70, 0x03, 0x21, 0x00, 0xbb, 0x16,0x9d, 0x8f, 0x5c, 0x30, 0xd0, 0xba, 0x8f, 0x37, 0x6e, 0x33, 0xaf, 0x6f, 0x23, 0x71, 0x23, 0xa5, 0x49, 0x60,0x1e, 0xd1, 0x07, 0x4b, 0xc9, 0x11, 0x7e, 0x66, 0x01, 0xba, 0x92, 0x52]),
      CASubject: new Uint8Array([0x30, 0x5a, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x45,0x4e, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x08, 0x13, 0x07, 0x45, 0x6e, 0x67, 0x6c, 0x61, 0x6e,0x64, 0x31, 0x0f, 0x30, 0x0d, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x06, 0x4c, 0x6f, 0x6e, 0x64, 0x6f, 0x6e,0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x03, 0x74, 0x73, 0x31, 0x31, 0x0c, 0x30, 0x0a,0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x03, 0x74, 0x73, 0x31, 0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04,0x03, 0x13, 0x03, 0x74, 0x73, 0x31]),
    }]
  };
  try {
    const validationRes = await x509CertChain.validate(param);
    console.log('X509CertChain validate success');
  } catch (err) {
    console.error('X509CertChain validate failed');
  }
}