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Certificate Management Service:Apply for a private certificate

Last Updated:Mar 20, 2026

Issue a client certificate or server certificate from a private intermediate certificate authority (CA) in the Certificate Management Service console.

Prerequisites

Before you begin, ensure that you have:

Issue a private certificate

  1. Log in to the Certificate Management Service console.

  2. In the left-side navigation pane, choose Certificate Management > Private Certificate Management.

  3. On the Private Certificate Management page, select the region where your Private Certificate Authority (PCA) resides.

  4. On the Private CAs tab, find the private intermediate CA that you want to use and click Apply for Certificate in the Actions column.

  5. In the Apply for Certificate panel, configure the following parameters and click Confirm.

    ParameterDescription
    Certificate TypeThe type of certificate to issue:
    • Server Certificate: Install on an application server.
    • Client Certificate: Install on a client that accesses an application.
    Personal NameRequired only for Client Certificate. A unique identifier for the certificate holder.
    Common Name (CN)Required only for Server Certificate. The domain name or IP address to bind to the certificate.
    Validity PeriodThe validity period of the certificate. The allowed range depends on the service duration of the private intermediate CA:
    • CA service duration less than one year: The certificate validity period must not exceed the CA service duration. For example, a CA with a one-month service duration can issue certificates with a maximum validity of 31 days. If you require a longer validity period for your private certificate, we recommend that you renew the private intermediate CA to extend its service duration. For more information, see Renewal policy.
    • CA service duration of one year or longer: The certificate validity period can range from 1 to 100 years.
    SANSubject alternative name (SAN) values that associate the certificate with multiple entities. Up to 10 SAN values are supported.
    • Server certificate: Enter a domain name or IP address.
    • Client certificate: Enter an email address or Uniform Resource Identifier (URI). A URI can uniquely identify an Alibaba Cloud resource to which a private certificate is deployed, such as an Elastic Compute Service (ECS) instance.
    SAN is an extension defined in the SSL X.509 standard that allows a certificate to be associated with multiple domain names.
    More(Optional) Specify a name for the certificate and add company or department information.
    Include CRL AddressThe certificate revocation list (CRL) feature is enabled by default. For more information, see Use the CRL feature.

Verify the result

After you submit the certificate application, the private certificate is immediately issued.

  1. On the Private CAs tab, find the intermediate CA that issued the certificate.

  2. Click Certificates in the Actions column to view the issued certificate.

Next steps

Download the private certificate and install it on a client or server. For more information, see Download a private certificate.