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    Certificate Management Service:Verify

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    Certificate Management Service:Verify

    Last Updated:Mar 13, 2026

    Verifies a data signature by using a private certificate in a certificate application repository.

    Operation description

    This API verifies the signatures of PCA certificates and SSL certificates in the certificate repository.

    QPS limits

    The queries per second (QPS) limit for this API is 1,000 for a single user. For your specific QPS limit, refer to the certificate repository. If you exceed this limit, API calls are throttled, which may affect your business. Plan your API 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.

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    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:Verify

    none

    *All Resource

    *

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    Message

    string

    Yes

    The data to verify. The data must be Base64-encoded. For example, if the hexadecimal content of the data to sign is `[0x31, 0x32, 0x33, 0x34]`, the Base64-encoded value is `MTIzNA==`. If you set `MessageType` to `RAW`, the data size must be less than 4 KB. If the data to sign is larger than 4 KB, set `MessageType` to `DIGEST`. Then, set `Message` to the message digest, or hash, that you calculate locally. The hashing algorithm for the digest must be compatible with the signature algorithm:

    • The hashing algorithm for `SHA256withRSA`, `SHA256withRSA/PSS`, and `SHA256withECDSA` is SHA-256.

    • The hashing algorithm for `SM3withSM2` is SM3.

    MTIzNA==
    CertIdentifier

    string

    No

    The unique identifier of the certificate. To get this parameter, call the ListCert operation.

    • The identifier for an SSL certificate is typically in the format `{Certificate ID}-cn-hangzhou`.

    • For a PCA certificate, this is the value of the `Identifier` field.

    1ef1da5f-38ed-69b3-****-037781890265
    SigningAlgorithm

    string

    Yes

    The signature algorithm. Valid values:

    • SHA256withRSA

    • SHA256withRSA/PSS

    • SHA256withECDSA

    • SM3withSM2

    SHA256withRSA
    MessageType

    string

    Yes

    The message type. Valid values:

    • RAW (default): The raw data.

    • DIGEST: The message digest of the raw data.

    RAW
    SignatureValue

    string

    Yes

    The signature value. The value must be Base64-encoded.

    eyaC0w3ROK5b3QcHmUtAhMY/sQjKu2t3uBfnf6J/gn7JfZtyxwcCUjzXbw5jmqJQRbj1te670Bshg9kUdanKhtHFhJjU5jX+ZMMBr6pH0gqQDJxR0K0yHXRc0Q5OQoUZ6BfpbI4Wt4jJvJSdCstz1vSg12CfEHS8Kd5qfhItK7Y=
    CustomIdentifier

    string

    No

    The custom identifier. This key must be unique.

    ****6bb538d538c70c01f81jh2****
    WarehouseId

    string

    No

    The ID of the repository. To get this parameter, call the ListCertWarehouse operation.

    1

    Response elements

    Element

    Type

    Description

    Example

    object

    RequestId

    string

    The request ID.

    1ed33293-2e48-6b14-861e-538e28e408eb
    SignatureValid

    boolean

    The result of the signature verification. Valid values:

    • true

    • false

    true

    Examples

    Success response

    JSON format

    {
  "RequestId": "1ed33293-2e48-6b14-861e-538e28e408eb",
  "SignatureValid": true
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.