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    Certificate Management Service:CreateServerCertificate

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    Certificate Management Service:CreateServerCertificate

    Last Updated:Aug 17, 2026

    Issues a single server certificate based on a system-generated certificate signing request (CSR).

    Operation description

    Before you call this operation, you must have called CreateRootCACertificate to create a root CA certificate and called CreateSubCACertificate to create a subordinate CA certificate. Only subordinate CA certificates can issue server certificates.

    QPS limit

    The single-user QPS limit for this operation is 10 calls per second. If the limit is exceeded, the API call is throttled, which may affect your business. Call this operation appropriately.

    Try it now

    Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

    Test

    RAM authorization

    The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

    • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

    • API: The API that you can call to perform the action.

    • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

    • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

      • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

      • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

    • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

    • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

    Action

    Access level

    Resource type

    Condition key

    Dependent action

    yundun-cert:CreateServerCertificate

    create

    *All Resource

    *

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    Domain

    string

    No

    The extended domain names and extended IP addresses of the server certificate. After you add extended information to the certificate, you can apply the certificate to multiple domain names and IP addresses.

    Separate multiple domain names and IP addresses with commas (,).

    example.com
    Organization

    string

    No

    The organization name. Default value: Alibaba Inc.

    Alibaba Cloud
    OrganizationUnit

    string

    No

    The department name. Default value: Aliyun CDN.

    IT
    Country

    string

    No

    The country code, such as CN or US.

    CN
    CommonName

    string

    Yes

    The name of the certificate user. For a server authentication (ServerAuth) certificate, the user is a server. Enter the domain name or IP address bound to the server.

    www.example.com
    State

    string

    No

    The name of the province or state where the certificate organization is located. Chinese and English characters are supported. Default value: the name of the province or state where the organization of the subordinate CA certificate that issues this certificate is located.

    Zhejiang
    Locality

    string

    No

    The name of the city where the certificate organization is located. Chinese and English characters are supported. Default value: the name of the city where the organization of the subordinate CA certificate that issues this certificate is located.

    Hangzhou
    Algorithm

    string

    Yes

    The key algorithm of the server certificate. The key algorithm is in the <encryption algorithm>_<key length> format. Valid values:

    • RSA_1024: The signature algorithm is Sha256WithRSA.

    • RSA_2048: The signature algorithm is Sha256WithRSA.

    • RSA_4096: The signature algorithm is Sha256WithRSA.

    • ECC_256: The signature algorithm is Sha256WithECDSA.

    • ECC_384: The signature algorithm is Sha256WithECDSA.

    • ECC_512: The signature algorithm is Sha256WithECDSA.

    • SM2_256: The signature algorithm is SM3WithSM2.

    The encryption algorithm of the server certificate must be the same as that of the subordinate CA certificate, but the key length can be different. For example, if the key algorithm of the subordinate CA certificate is RSA_2048, the key algorithm of the server certificate must be RSA_1024, RSA_2048, or RSA_4096.

    Note

    You can call DescribeCACertificate to query the key algorithm of the subordinate CA certificate.

    RSA_2048
    ParentIdentifier

    string

    Yes

    The unique identifier of the subordinate CA certificate that issues this certificate.

    Note

    You can call DescribeCACertificateList to query the unique identifier of the subordinate CA certificate.

    271ae6bb538d538c70c01f81dg3****
    Years

    integer

    No

    The certificate validity period. Unit: years.

    1
    Months

    integer

    No

    The certificate validity period. Unit: months.

    12
    Days

    integer

    No

    The validity period of the server certificate. Unit: days. The Days, BeforeTime, and AfterTime parameters cannot all be empty. The BeforeTime and AfterTime parameters must both be empty or both be specified. The following rules apply:

    • If you set the Days parameter, you can choose to set or not set the BeforeTime and AfterTime parameters.

    • If you do not set the Days parameter, you must set the BeforeTime and AfterTime parameters.

    Note

    • If you set the Days, BeforeTime, and AfterTime parameters at the same time, the validity period of the server certificate is determined by the value of the Days parameter.

    • The validity period of the server certificate cannot exceed the validity period of the subordinate CA certificate. You can call DescribeCACertificate to query the validity period of the subordinate CA certificate.

    365
    BeforeTime

    integer

    No

    The issuance time of the server certificate in timestamp format. Default value: the time when you call this operation. Unit: seconds.

    Note

    The BeforeTime and AfterTime parameters must both be empty or both be specified.

    1634283958
    AfterTime

    integer

    No

    The expiration time of the server certificate in timestamp format. Unit: seconds.

    Note

    The BeforeTime and AfterTime parameters must both be empty or both be specified.

    1665819958
    Immediately

    integer

    No

    Specifies whether to immediately return the digital certificate. Valid values:

    • 0: does not return the certificate. This is the default value.

    • 1: returns the certificate.

    • 2: returns the certificate and its certificate chain.

    1
    EnableCrl

    integer

    No

    Specifies whether to include the Certificate Revocation List (CRL) address. Valid values:

    0: no.

    1: yes.

    1
    Tags

    array<object>

    No

    The tag list.

    object

    No

    The tag list.

    Key

    string

    No

    The tag key.

    account
    Value

    string

    No

    The tag value.

    test
    ResourceGroupId

    string

    No

    The resource group ID. You can obtain this ID by calling the ListResources operation.

    test
    CustomIdentifier

    string

    No

    The custom identifier, which is a unique key.

    ****6bb538d538c70c01f81dg3****
    AsynchronousFlag

    boolean

    No

    The asynchronous processing flag. If the value is "true", the backend service issues the certificate asynchronously. After the request is submitted, you can call the ListClientCertificate operation to obtain the latest certificate.

    false

    When you call this operation, you must include common Alibaba Cloud API request parameters in addition to the operation-specific request parameters described in this topic.

    For the request format, see the request examples in the Examples section of this topic.

    Response elements

    Element

    Type

    Description

    Example

    object

    CreateCertificateResponse

    X509Certificate

    string

    The content of the server certificate.

    -----BEGIN CERTIFICATE-----\n......\n-----END CERTIFICATE-----
    CertificateChain

    string

    The CA certificate chain.

    -----BEGIN CERTIFICATE-----\n......\n-----END CERTIFICATE-----\n-----BEGIN CERTIFICATE-----\n......\n-----END CERTIFICATE-----\n
    Identifier

    string

    The unique identifier of the server certificate.

    160ae6bb538d538c70c01f81dcf2****
    SerialNumber

    string

    The certificate serial number.

    084bde9cd233f0ddae33adc438cfbbbd****
    RequestId

    string

    The request ID. Alibaba Cloud generates a unique identifier for each request. You can use the request ID to troubleshoot issues.

    15C66C7B-671A-4297-9187-2C4477247A74

    Examples

    Success response

    JSON format

    {
  "X509Certificate": "-----BEGIN CERTIFICATE-----\\n......\\n-----END CERTIFICATE-----",
  "CertificateChain": "-----BEGIN CERTIFICATE-----\\n......\\n-----END CERTIFICATE-----\\n-----BEGIN CERTIFICATE-----\\n......\\n-----END CERTIFICATE-----\\n",
  "Identifier": "160ae6bb538d538c70c01f81dcf2****",
  "SerialNumber": "084bde9cd233f0ddae33adc438cfbbbd****",
  "RequestId": "15C66C7B-671A-4297-9187-2C4477247A74"
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.