ssl - 无法使用 Apple 应用证明根证书验证 X509Certificate 的有效性

Question

我所能做的就是使用其方法 checkValidity() 验证生成的 X509Certificate，但按照https://developer.apple.com/documentation/devicecheck/validating_apps_that_connect_to_your_server中提到的步骤，我们必须使用 Apple App 验证 X509Certificate证明根证书是

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

你可以看看我的代码：

String decodedCredCert = "
    -----BEGIN CERTIFICATE----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 
    MPUPwJACRw==
    -----END CERTIFICATE----- ";
                        X509Certificate cert1 = getParentCertificate(decodedCredCert);
                        System.out.println(cert1);
                        cert1.checkValidity();

我在哪里

Answer 1

此应用程序证明步骤是验证证书链。您将在证明请求中获得 2 个证书，即在 x5c[0]、x5c[1] 下。这些是叶证书和中间证书。

要验证证书链，x5c[0] 证书应由 x5c[1] 签名，x5c[1] 证书应由 Apple App attest 根证书签名。

示例代码

    CertificateFactory cf = CertificateFactory.getInstance(AppConstants.X_509);
    byte[] credCertByte = Base64.getDecoder().decode(x5c[0]);
    X509Certificate credCert = (X509Certificate) cf.generateCertificate(new ByteArrayInputStream(credCertByte));

    byte[] caCertByte = Base64.getDecoder().decode(x5c[1]);
    X509Certificate caCert = (X509Certificate) cf.generateCertificate(new ByteArrayInputStream(caCertByte));
    X509Certificate appleAppAttestationRootCaCert = (X509Certificate) cf
            .generateCertificate(APPLE_APP_ATTEST_CERT);

    credCert.verify(caCert.getPublicKey());
    caCert.verify(appleAppAttestationRootCaCert.getPublicKey());