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    Certificate Management Service:CreateServerCertificate

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    Certificate Management Service:CreateServerCertificate

    Last Updated:Dec 24, 2025

    Issues a server-side certificate using a system-generated Certificate Signing Request (CSR).

    Operation description

    Before you call this operation, you must call CreateRootCACertificate to create a root certificate authority (CA) certificate and CreateSubCACertificate to create a subordinate CA certificate. Only a subordinate CA certificate can issue a server certificate.

    QPS limits

    The queries per second (QPS) limit for this operation is 10 calls per second for each user. If you exceed this limit, the system throttles your API calls, which can affect your business. Plan your calls accordingly.

    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 additional domain names and IP addresses for the server certificate. This information lets you apply the certificate to multiple domain names and IP addresses.

    Separate multiple domain names or IP addresses with a comma (,).

    example.com
    Organization

    string

    No

    The name of the organization. The default value is Alibaba Inc.

    阿里云
    OrganizationUnit

    string

    No

    The name of the department. The default value is Alibaba Cloud 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 the server. Enter the domain name or IP address that is bound to the server.

    www.example.com
    State

    string

    No

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

    Zhejiang
    Locality

    string

    No

    The city where the organization is located. Chinese and English characters are supported. The default value is the city of the organization that is associated with the subordinate CA certificate that issues this certificate.

    Hangzhou
    Algorithm

    string

    Yes

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

    • RSA_1024: The corresponding signature algorithm is Sha256WithRSA.

    • RSA_2048: The corresponding signature algorithm is Sha256WithRSA.

    • RSA_4096: The corresponding signature algorithm is Sha256WithRSA.

    • ECC_256: The corresponding signature algorithm is Sha256WithECDSA.

    • ECC_384: The corresponding signature algorithm is Sha256WithECDSA.

    • ECC_512: The corresponding signature algorithm is Sha256WithECDSA.

    • SM2_256: The corresponding signature algorithm is SM3WithSM2.

    The encryption algorithm of the server certificate must be the same as the encryption algorithm 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

    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

    Call DescribeCACertificateList to query the unique identifier of the subordinate CA certificate.

    271ae6bb538d538c70c01f81dg3****
    Years

    integer

    No

    The validity period of the certificate, in years.

    1
    Months

    integer

    No

    The validity period of the certificate, in months.

    12
    Days

    integer

    No

    The validity period of the server certificate, in days. The Days, BeforeTime, and AfterTime parameters cannot all be empty. The BeforeTime and AfterTime parameters must be specified together or left empty together. The following rules describe how to set these parameters:

    • If you specify Days, the BeforeTime and AfterTime parameters are optional.

    • If you do not specify Days, you must specify both BeforeTime and AfterTime.

    Note

    • If you specify Days, BeforeTime, and AfterTime at the same time, the value of Days determines the validity period of the server certificate.

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

    365
    BeforeTime

    integer

    No

    The issuance time of the server certificate. This value is a UNIX timestamp in seconds. The default value is the time when you call this operation.

    Note

    The BeforeTime and AfterTime parameters must be specified together or left empty together.

    1634283958
    AfterTime

    integer

    No

    The expiration time of the server certificate. This value is a UNIX timestamp in seconds.

    Note

    The BeforeTime and AfterTime parameters must be specified together or left empty together.

    1665819958
    Immediately

    integer

    No

    Specifies whether to return the digital certificate immediately.

    • 0: No. 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.

    0: No

    1: Yes

    1
    Tags

    array<object>

    No

    A list of tags.

    object

    No

    A list of tags.

    Key

    string

    No

    The tag key.

    account
    Value

    string

    No

    The tag value.

    test
    ResourceGroupId

    string

    No

    The ID of the resource group. Call the ListResources operation to get this ID.

    test
    CustomIdentifier

    string

    No

    A custom identifier. This key must be unique.

    ****6bb538d538c70c01f81dg3****

    When you call this operation, you must include the common request parameters in addition to the request parameters described in this topic.

    For information about the request format, see the request example 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 serial number of the certificate.

    084bde9cd233f0ddae33adc438cfbbbd****
    RequestId

    string

    The ID of the request. This ID is a unique identifier generated by Alibaba Cloud. Use this 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.