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GetPublicKey

Last updated: 2020-07-17 11:10:57

1. API Description

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

This API is used to get the information of the public key that is encrypted with the asymmetric cryptographic algorithm and of which the KeyUsage is ASYMMETRIC_DECRYPT_RSA_2048 or ASYMMETRIC_DECRYPT_SM2. This public key can be used to encrypt data locally, and the data encrypted with it can only be decrypted with the corresponding private key through KMS. The public key can only be obtained from the asymmetric key in Enabled state.

A maximum of 100 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 parameter. The value used for this API: GetPublicKey.
Version	Yes	String	Common parameter. The value used for this API: 2019-01-18.
Region	Yes	String	Common parameter. For more information, please see the list of regions supported by the product.
KeyId	Yes	String	Unique CMK ID.

3. Output Parameters

Parameter Name	Type	Description
KeyId	String	Unique CMK ID.
PublicKey	String	Base64-encoded public key content.
PublicKeyPem	String	Public key content in PEM format.
RequestId	String	The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Getting the public key of an asymmetric key

Input Example

https://kms.tencentcloudapi.com/?Action=GetPublicKey
&KeyId=554ef4b3-3071-11ea-a86a-5254006d0810
&<Common request parameters>

Output Example

{
  "Response": {
    "RequestId": "8918bd5b-e189-4e2d-b718-01c9f99acd45",
    "KeyId": "554ef4b3-3071-11ea-a86a-5254006d0810",
    "PublicKey": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz0OTVMh28VCjOE5DMlBM8a2qIjgipYByb7WE/GyTRLUiIGDUq44VIM5fNI9nVeIf2D+4pIiU0s4LUYnLxkGcFKUVWkz3nubUzbNdSHRbNjKhbFyyRGT6YYxqMfvCmNXMA3OE56EmvsWU9VwVXqRPOFTaODCx8bRd+R6O+Aho9GaRfwLKHtlX7dochdDs9SWC6iybRISgpLEh4tvzcSlBemEuyx5U/X/BoL+sVnSsC/XT8J9w0EvJVHZaBW7OhIbBOolhzWTF8TpL/7ncZZUbtfP4SrAkvKgoEIEfRhv5vh5LfSxiS2zQzIShrT6JYqh5IgDIHTdCcPiYmTsk/lmM2wIDAQAB",
    "PublicKeyPem": "-----BEGIN PUBLIC KEY-----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\nMndJREFRQUI=\n-----END PUBLIC KEY-----\n"
  }
}

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Command Line Interface

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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
InternalError	Internal error.
InvalidParameter	Invalid parameter.
InvalidParameterValue.InvalidKeyId	Invalid `KeyId`.
ResourceUnavailable.CmkNotFound	The CMK does not exist.
ResourceUnavailable.CmkStateNotSupport	This operation cannot be performed under the current CMK status.
UnauthorizedOperation	Unauthorized operation.