Exporting a CA

You can export a private CA certificate, including the certificate body and certificate chain.

A root certificate is self-signed, and the certificate chain is null.

For details, see Parameters for Exporting a CA.

import com.huaweicloud.sdk.ccm.v1.CcmClient;
import com.huaweicloud.sdk.ccm.v1.model.ExportCertificateAuthorityCertificateRequest;
import com.huaweicloud.sdk.ccm.v1.model.ExportCertificateAuthorityCertificateResponse;
import com.huaweicloud.sdk.core.auth.GlobalCredentials;

/**
 * Export a CA certificate, including the certificate body and certificate chain. A root CA certificate is self-signed, so the certificate chain is null.
 */
public class ExportCertificateAuthorityExample {
    /**
     * Basic authentication information:
     * - ACCESS_KEY: access key of the Huawei Cloud account
     * - SECRET_ACCESS_KEY: secret access key of the Huawei Cloud account
    * - DOMAIN_ID: Huawei Cloud account ID.
    * - CCM_ENDPOINT: Endpoint address for accessing Huawei Cloud CCM (PCA is included in CCM).
......*Hard-coded or plaintext AK and SK are risky. For security, encrypt your AK and SK and store them in the configuration file or environment variables.
     * In this example, the AK and SK are stored in environment variables for identity authentication. Before running this example, configure environment variables HUAWEICLOUD_SDK_AK and HUAWEICLOUD_SDK_SK.
     */
    private static final String ACCESS_KEY =  System.getenv("HUAWEICLOUD_SDK_AK");
    private static final String SECRET_ACCESS_KEY = System.getenv("HUAWEICLOUD_SDK_SK");
    private static final String DOMAIN_ID = "<DomainID>";
    private static final String CCM_ENDPOINT = "<CcmEndpoint>";

    public static void main(String[] args) {
      // 1. Prepare the credentials for accessing Huawei Cloud. PCA is a global service.
        final GlobalCredentials auth = new GlobalCredentials()
                .withAk(ACCESS_KEY)
                .withSk(SECRET_ACCESS_KEY)
                .withDomainId(DOMAIN_ID);

        // 2. Initialize the SDK and transfer the credentials and endpoint address of CCM.
        final CcmClient ccmClient = CcmClient.newBuilder()
                .withCredential(auth)
                .withEndpoint(CCM_ENDPOINT).build();

       // 3. Make request parameters.
      //ID of the CA certificate you want to export.
        String caId = "3a02c7f6-d8f5-497e-9f60-18dfd3eeb4e6";

       // 4. Construct a request body.
        ExportCertificateAuthorityCertificateRequest request = new ExportCertificateAuthorityCertificateRequest()
                .withCaId(caId);

       // 5. Start to send the request.
        ExportCertificateAuthorityCertificateResponse response;
        try {
            response = ccmClient.exportCertificateAuthorityCertificate(request);
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage());
        }

       // 6. Obtain the response message.
       // (1) Obtain the certificate body in PEM format.
        String caCertificate = response.getCertificate();
       // (2) Obtain the certificate chain in PEM format.
        String caCertificateChain = response.getCertificateChain();

        System.out.println(response);
    }

}