Question

在使用证书进行身份验证时，我是新手。如果我的问题没有意义，请纠正我。

我在本地创建了2048位X.509证书。我有server.crt，server.key，server.key.org和mycert.pfx（mycert.pfx包含公钥和私钥，我在我的代码中使用该文件）。

现在我有一个带有以下代码的Java应用程序：

String tenant="f6377xxx-aeb2-4a8a-be8a-7xxxxa60be3";
String authority = "https://login.windows.net/"+tenant+"/oauth2/authorize";
ExecutorService service=null;
service= Executors.newFixedThreadPool(1);

try
{
    AuthenticationContext authenticationContext =
        new AuthenticationContext(authority,false,service);
    String certFile="/projects/mycert.pfx";
    InputStream pkcs12Cert= new SharedFileInputStream(certFile);

    AsymmetricKeyCredential credential = AsymmetricKeyCredential.create(
        "xxxx-e53c-45b7-432-7b91d93674b6", pkcs12Cert, "password");

    Future<AuthenticationResult> future = authenticationContext.acquireToken(
        "https://outlook.office365.com", credential, null);

    System.out.println("Token Received"+future.get().getAccessToken());
    String token=future.get().getAccessToken();

此代码正在尝试向Office 365 API进行身份验证。为此，我在Azure上创建了一个具有租户ID和其他信息的应用程序。现在上面的代码抛出了以下异常。

com.microsoft.aad.adal4j.AuthenticationException：{“error_description”：“AADSTS70002：验证凭据时出错.AADSTS50012：客户端断言包含无效签名。[原因 - 未找到密钥。，客户端使用的密钥指纹：'H6383KO9763C6E4KIE8363032D6'，配置密钥：[]] \ r \ nTrace ID：76YT3GG-7b8b-JDU73-afeb-JDUEY7372 \ r \ n相关ID：7H3Y743-a5b7-KD98-88ba-HDUYE7663 \ r \ n时间戳：2016-08- 31 23：56：50Z“，”错误“：”invalid_client“}

原因是因为我没有在服务器端上载证书（即在Azure AD应用程序上）。我跟着this tutorial找到了一个解决方案，显示我必须下载Manifest文件，使用证书对其进行编辑，然后将其上传到Azure服务器。

问题是我不知道从证书中获取以下密钥的值的位置。能否帮助我找到customKeyIdentifier，keyId和value的哪个位置？

"keyCredentials": [
    {
        "customKeyIdentifier": "$base64Thumbprint_from_above",
        "keyId": "$keyid_from_above",
        "type": "AsymmetricX509Cert",
        "usage": "Verify",
        "value":  "$base64Value_from_above"
    }
],

Answer 1

我找到了以下源代码来生成我正在寻找的keyCredentials中的键/值。虽然您需要先生成证书。然后运行代码，keyCredentials内容应该在keycredentials.txt文件中。

@Test
    public void testGenerateKeyCredentials(){

    String certFile = "/etc/abc/server2.crt";
    System.out.printf("Generating keyCredentials entry from %s\n", certFile);


    try {
        FileInputStream certFileIn = new FileInputStream(certFile);
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        Certificate cert = cf.generateCertificate(certFileIn);

        // Generate base64-encoded version of the cert's data
        // for the "value" property of the "keyCredentials" entry
        byte[] certData = cert.getEncoded();
        String certValue = Base64.getEncoder().encodeToString(certData);
        System.out.println("Cert value: " + certValue);

        // Generate the SHA1-hash of the cert for the "customKeyIdentifier"
        // property of the "keyCredentials" entry
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        md.update(certData);
        String certCustomKeyId = Base64.getEncoder().encodeToString(md.digest());
        System.out.println("Cert custom key ID: " + certCustomKeyId);

        FileWriter fw = new FileWriter("keycredentials.txt", false);
        PrintWriter pw = new PrintWriter(fw);

        pw.println("\"keyCredentials\": [");
        pw.println("  {");
        pw.println("    \"customKeyIdentifier\": \"" + certCustomKeyId + "\",");
        pw.println("    \"keyId\": \"" + UUID.randomUUID().toString() + "\",");
        pw.println("    \"type\": \"AsymmetricX509Cert\",");
        pw.println("    \"usage\": \"Verify\",");
        pw.println("    \"value\": \"" + certValue + "\"");
        pw.println("  }");
        pw.println("],");

        pw.close();

        System.out.println("Key credentials written to keycredentials.txt");
    } catch (FileNotFoundException e) {
        System.out.printf("ERROR: Cannot find %s\n", certFile);
    } catch (CertificateException e) {
        System.out.println("ERROR: Cannot instantiate X.509 certificate");
    } catch (NoSuchAlgorithmException e) {
        System.out.println("ERROR: Cannot instantiate SHA-1 algorithm");
    } catch (IOException e) {
        System.out.println("ERROR: Cannot write to keycredentials.txt");
    }
}

Answer 2

certCustomKeyId和certValue的短c＃代码：

String certFile =“/ etc / abc / server2.crt”; X509Certificate cert = new X509Certificate（）;

cert.Import（certFile中）;

String certValue = Convert.ToBase64String（cert.GetRawCertData（））;

Console.WriteLine（“Cert value：”+ certValue）;

String certCustomKeyId = Convert.ToBase64String（cert.GetCertHash（））; Console.WriteLine（“customKeyIdentifier：”+ certCustomKeyId）;

Console.WriteLine（“keyId：”+ System.Guid.NewGuid（））;

我在哪里可以找到我在本地创建的X.509证书的详细信息？

2 个答案: