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Key Management Service
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    AsymmetricRsaDecrypt

    Last updated: 2021-02-04 10:25:36
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      1. API Description

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

      This API is used to decrypt data with the specified private key that is encrypted with RSA asymmetric cryptographic algorithm. The ciphertext must be encrypted with the corresponding public key. The asymmetric key must be in Enabled state for decryption.

      A maximum of 200 requests can be initiated per second for this API.

      We recommend you to use API Explorer
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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: AsymmetricRsaDecrypt.
      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
      Ciphertext Yes String Base64-encoded ciphertext encrypted with PublicKey
      Algorithm Yes String Corresponding algorithm when a public key is used for encryption. Valid values: RSAES_PKCS1_V1_5, RSAES_OAEP_SHA_1, RSAES_OAEP_SHA_256

      3. Output Parameters

      Parameter Name Type Description
      KeyId String Unique CMK ID
      Plaintext String Base64-encoded plaintext after decryption
      RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

      4. Example

      Example1 Decrypting data with RSA asymmetric key

      Input Example

      https://kms.tencentcloudapi.com/?Action=AsymmetricRsaDecrypt
&KeyId=554ef4b3-3071-11ea-a86a-5254006d0810
&Ciphertext=Fb0UICocErQgNEkYKJagtoKNed7DLeo5UkZzPJMyI94CfWh6yKHGgb/0PBHrCve2Avo4gJI5pJMWP3Aq5ggX0aunLv87UX+sgO1/3HXW+q4ARaiwZ9Q73RQuPg6qJ2Eg33uZ2Xjey3l+5yHiOdZYmCVePtKAsuhxzKw/sALTbGTYYnbJXnGKr3Yu7Hs0hCC1bOz0sNqd1IXdUyMtQtbDOV8NWg2ecdZPIOdbnrCKIQ4rpMUghjSFv3rSHo5VbpuOGPXqEZT4goou42psIXb03li3TXxFZMTAdxVMzpqEuTfRxiMPEqyPEHe6xG92vJX0FZfWU8Y5SxlfXp+mvBbAmw==
&Algorithm=RSAES_OAEP_SHA_1
&<Common request parameters>

      Output Example

      {
  "Response": {
    "RequestId": "7c076c83-1402-41d8-8ce6-73a350a9eaf6",
    "KeyId": "554ef4b3-3071-11ea-a86a-5254006d0810",
    "Plaintext": "dGVzdA=="
  }
}

      5. Developer Resources

      SDK

      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
      FailedOperation.DecryptError Decryption failed.
      InternalError Internal error.
      InvalidParameter Invalid parameter.
      InvalidParameterValue.InvalidKeyId Invalid KeyId.
      InvalidParameterValue.InvalidKeyUsage Incorrect KeyUsage parameter.
      ResourceUnavailable.CmkNotFound The CMK does not exist.
      ResourceUnavailable.CmkStateNotSupport This operation cannot be performed under the current CMK status.
      UnauthorizedOperation Unauthorized operation.
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