tencent cloud



Last updated: 2023-08-07 17:45:17

1. API Description

Domain name for API request: kms.tencentcloudapi.com.

This API is used to sign u200dusing PQC.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common Params. The value used for this API: PostQuantumCryptoSign.
Version Yes String Common Params. The value used for this API: 2019-01-18.
Region No String Common Params. This parameter is not required for this API.
Message Yes String Original message text before Base64 encoding. It cannot exceed 4096 bytes.
KeyId Yes String Unique ID of a key

3. Output Parameters

Parameter Name Type Description
Signature String Base64-encoded signature You can use PostQuantumCryptoVerify to verify the signature value.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Generating a signature using PQC

This example shows you how to generate a signature using PQC.

Input Example

Host: kms.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: PostQuantumCryptoSign
<Common request parameters>

    "Message": "abc",
    "KeyId": "abc"

Output Example

    "Response": {
        "Signature": "abc",
        "RequestId": "abc"

5. Developer Resources


TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
AuthFailure CAM signature/authentication error
InternalError Internal error.
InvalidParameter Invalid parameter.
InvalidParameterValue.InvalidKeyId Invalid KeyId.
MissingParameter Missing parameters. Please check and try again.
ResourceUnavailable.CmkNotFound The CMK does not exist.
ResourceUnavailable.CmkStateNotSupport This operation cannot be performed under the current CMK status.
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