Decrypt - 对称解密--密钥管理系统-火山引擎

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密钥管理系统

密钥管理

Decrypt - 对称解密

对称解密

调试

API Explorer

您可以通过 API Explorer 在线发起调用，无需关注签名生成过程，快速获取调用结果。

去调试

请求参数

下表仅列出该接口特有的请求参数和部分公共参数。更多信息请见公共参数。

参数	类型	是否必填	示例值	描述
Action	String	是	Decrypt	要执行的操作，取值：Decrypt。
Version	String	是	2021-02-18	API的版本，取值：2021-02-18。
EncryptionContext	String	否	{"user":"alice","path":"path/to/alice/plaintext.txt"}	key/value的JSON字符串。如果指定了该参数，则在调用Decrypt时需要提供同样的参数。
CiphertextBlob	String	是	aaSgNwtCRlebbNLMueEN2gAA/Ijt5mhv0QfCLLKxpiF/QfSsTr2Yh8j7X/BWJ6JzhqmTGGXSRBf8RIzZiqZpuZ3ilC389YOnHoLahR5PjcEroYCEcbVxf7k+y8wVBE/O1XDdGK+5iBTzqy9k0y8=	解密数据，取值 > 18

返回参数

下表仅列出本接口特有的返回参数。更多信息请参见返回结构。

参数	类型	示例值	描述
Plaintext	String	tWB54tTvEu47YjRjuuj+fAt5PskpUaqwsjLeEy4YMNg=	解密后的明文，Base64编码

请求示例

POST /?Action=Decrypt&Version=2021-02-18 HTTP/1.1
Host: kms.cn-beijing.volcengineapi.com
Content-Type: application/json; charset=UTF-8
X-Date: 20240708T073658Z
X-Content-Sha256: 287e874e******d653b44d21e
Authorization: HMAC-SHA256 Credential=Adfks******wekfwe/20240708/cn-beijing/kms/request, SignedHeaders=host;x-content-sha256;x-date, Signature=47a7d934ff7b37c03938******cd7b8278a40a1057690c401e92246a0e41085f

{
  "CiphertextBlob":"aaSgNwtCRlebbNLMueEN2gAA/Ijt5mhv0QfCLLKxpiF/QfSsTr2Yh8j7X/BWJ6JzhqmTGGXSRBf8RIzZiqZpuZ3ilC389YOnHoLahR5PjcEroYCEcbVxf7k+y8wVBE/O1XDdGK+5iBTzqy9k0y8="
}

返回示例

{
  "ResponseMetadata": {
    "RequestId": "202407081537241800271190259E510F",
    "Action": "Decrypt",
    "Version": "2021-02-18",
    "Service": "kms",
    "Region": "cn-beijing"
  },
  "Result": {
    "KeyringName": "demo",
    "KeyName": "demo",
    "Plaintext": "tWB54tTvEu47YjRjuuj+fAt5PskpUaqwsjLeEy4YMNg="
  }
}

错误码

下表为您列举了该接口与业务逻辑相关的错误码。公共错误码请参见公共错误码文档。

状态码	错误码	错误信息
400	InvalidParameter	The request parameter %s is invalid.
400	InvalidKeyStatus	Current key status: %s does not allow to perform this action
400	XksProxyUriUnreachable	The external key store proxy is in an unhealthy state. If you see this message repeatedly, notify your external key store proxy administrator.
400	XksProxyIncorrectAuthenticationCredential	The external key store proxy rejected the request because it could not authenticate CloudKMS. Verify the XKS proxy authentication credentials for your external key store and update if necessary.
400	CustomKeyStoreInvalidState	The request was rejected because of the ConnectionState of the custom key store. To get the ConnectionState of a custom key store, use the DescribeCustomKeyStores operation.
400	XksProxyInvalidResponse	CloudKMS cannot interpret the response from the external key store proxy. If you see this error repeatedly, report it to your external key store proxy administrator.
400	XksProxyInvalidUriPath	The external key store proxy rejected the request because of an invalid URI path. Verify the URI path for your external key store and update if necessary.
403	Reject.Throttling.CMK	The request of CMK: %s upper limit is exceeded.
403	AccessDenied	User is not authorized to do this action
403	KMS_ServiceNotOpen	KMS service not open yet, please open the service and try again later.
403	XksProxyAccessDenied	The external key store proxy denied access to the operation. Verify that the user and the external key are both authorized for this operation, and try the request again.
404	Not Found	Not found %s [%s].
500	UndefinedError	Undefined Internal Error. Pls Contact With Admin.

最近更新时间：2025.12.01 20:00:12

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