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Encrypt data
Function
This API is used to encrypt data using a specified CMK.
Constraints
If you use an asymmetric key for encryption, record the key ID and encryption algorithm, which are required for decryption. If the specified key ID and encryption algorithm do not match those used for encrypting data, the decryption fails. If you use a symmetric key for decryption, you do not need to provide the key ID and encryption algorithm. KMS stores the information as ciphertext. KMS cannot store metadata in the ciphertext generated using an asymmetric key. A standard asymmetric key ciphertext does not contain configurable fields.
Calling Method
For details, see Calling APIs.
URI
POST /v1.0/{project_id}/kms/encrypt-data
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Project ID |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
X-Auth-Token |
Yes |
String |
User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token. |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
key_id |
Yes |
String |
A 36-byte key ID which matches the regular expression ^[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{12}$, for example, 0d0466b0-e727-4d9c-b35d-f84bb474a37f. |
plain_text |
Yes |
String |
Plaintext data. It can be 1 to 4,096 bytes and should match the regular expression ^.{1,4096}$. After it is converted to a byte array, its length should still be 1 to 4096 bytes. |
encryption_algorithm |
No |
String |
Data encryption algorithm. Specify this parameter if only asymmetric keys are used. The default value is SYMMETRIC_DEFAULT. Possible values are as follows: SYMMETRIC_DEFAULT RSAES_OAEP_SHA_256 SM2_ENCRYPT |
sequence |
No |
String |
A 36-byte serial number of a request message, for example, 919c82d4-8046-4722-9094-35c3c6524cff |
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
key_id |
String |
Key ID. |
cipher_text |
String |
Encrypted ciphertext in Base64 format |
Status code: 400
Parameter |
Type |
Description |
---|---|---|
error |
Object |
Error message. |
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code returned by the error request |
error_msg |
String |
Error information returned by the error request |
Status code: 401
Parameter |
Type |
Description |
---|---|---|
error |
Object |
Error message. |
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code returned by the error request |
error_msg |
String |
Error information returned by the error request |
Status code: 403
Parameter |
Type |
Description |
---|---|---|
error |
Object |
Error message. |
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code returned by the error request |
error_msg |
String |
Error information returned by the error request |
Status code: 404
Parameter |
Type |
Description |
---|---|---|
error |
Object |
Error message. |
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code returned by the error request |
error_msg |
String |
Error information returned by the error request |
Status code: 500
Parameter |
Type |
Description |
---|---|---|
error |
Object |
Error message. |
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code returned by the error request |
error_msg |
String |
Error information returned by the error request |
Status code: 502
Parameter |
Type |
Description |
---|---|---|
error |
Object |
Error message. |
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code returned by the error request |
error_msg |
String |
Error information returned by the error request |
Status code: 504
Parameter |
Type |
Description |
---|---|---|
error |
Object |
Error message. |
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code returned by the error request |
error_msg |
String |
Error information returned by the error request |
Example Requests
Encrypt plaintext data hello world using the CMK whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f and the SYMMETRIC_DEFAULT encryption algorithm.
{ "key_id" : "0d0466b0-e727-4d9c-b35d-f84bb474a37f", "plain_text" : "hello world", "encryption_algorithm" : "SYMMETRIC_DEFAULT" }
Example Responses
Status code: 200
Request succeeded.
{ "key_id" : "bb6a3d22-dc93-47ac-b5bd-88df7ad35f1e", "cipher_text" : "AgDoAG7EsEc2OHpQxz4gDFDH54CqwaelpTdEl+RFXXX..." }
SDK Sample Code
The SDK sample code is as follows.
Encrypt plaintext data hello world using the CMK whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f and the SYMMETRIC_DEFAULT encryption algorithm.
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package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.kms.v2.region.KmsRegion; import com.huaweicloud.sdk.kms.v2.*; import com.huaweicloud.sdk.kms.v2.model.*; public class EncryptDataSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); ICredential auth = new BasicCredentials() .withAk(ak) .withSk(sk); KmsClient client = KmsClient.newBuilder() .withCredential(auth) .withRegion(KmsRegion.valueOf("<YOUR REGION>")) .build(); EncryptDataRequest request = new EncryptDataRequest(); EncryptDataRequestBody body = new EncryptDataRequestBody(); body.withEncryptionAlgorithm(EncryptDataRequestBody.EncryptionAlgorithmEnum.fromValue("SYMMETRIC_DEFAULT")); body.withPlainText("hello world"); body.withKeyId("0d0466b0-e727-4d9c-b35d-f84bb474a37f"); request.withBody(body); try { EncryptDataResponse response = client.encryptData(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } } |
Encrypt plaintext data hello world using the CMK whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f and the SYMMETRIC_DEFAULT encryption algorithm.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 |
# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkkms.v2.region.kms_region import KmsRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkkms.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] credentials = BasicCredentials(ak, sk) client = KmsClient.new_builder() \ .with_credentials(credentials) \ .with_region(KmsRegion.value_of("<YOUR REGION>")) \ .build() try: request = EncryptDataRequest() request.body = EncryptDataRequestBody( encryption_algorithm="SYMMETRIC_DEFAULT", plain_text="hello world", key_id="0d0466b0-e727-4d9c-b35d-f84bb474a37f" ) response = client.encrypt_data(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
Encrypt plaintext data hello world using the CMK whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f and the SYMMETRIC_DEFAULT encryption algorithm.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 |
package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" kms "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := kms.NewKmsClient( kms.KmsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.EncryptDataRequest{} encryptionAlgorithmEncryptDataRequestBody:= model.GetEncryptDataRequestBodyEncryptionAlgorithmEnum().SYMMETRIC_DEFAULT request.Body = &model.EncryptDataRequestBody{ EncryptionAlgorithm: &encryptionAlgorithmEncryptDataRequestBody, PlainText: "hello world", KeyId: "0d0466b0-e727-4d9c-b35d-f84bb474a37f", } response, err := client.EncryptData(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Encrypt plaintext data hello world using the CMK whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f and the SYMMETRIC_DEFAULT encryption algorithm.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 |
package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.kms.v2.region.KmsRegion; import com.huaweicloud.sdk.kms.v2.*; import com.huaweicloud.sdk.kms.v2.model.*; public class EncryptDataSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); ICredential auth = new BasicCredentials() .withAk(ak) .withSk(sk); KmsClient client = KmsClient.newBuilder() .withCredential(auth) .withRegion(KmsRegion.valueOf("<YOUR REGION>")) .build(); EncryptDataRequest request = new EncryptDataRequest(); EncryptDataRequestBody body = new EncryptDataRequestBody(); body.withEncryptionAlgorithm(EncryptDataRequestBody.EncryptionAlgorithmEnum.fromValue("SYMMETRIC_DEFAULT")); body.withPlainText("hello world"); body.withKeyId("0d0466b0-e727-4d9c-b35d-f84bb474a37f"); request.withBody(body); try { EncryptDataResponse response = client.encryptData(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } } |
Encrypt plaintext data hello world using the CMK whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f and the SYMMETRIC_DEFAULT encryption algorithm.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 |
# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkkms.v2.region.kms_region import KmsRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkkms.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] credentials = BasicCredentials(ak, sk) client = KmsClient.new_builder() \ .with_credentials(credentials) \ .with_region(KmsRegion.value_of("<YOUR REGION>")) \ .build() try: request = EncryptDataRequest() request.body = EncryptDataRequestBody( encryption_algorithm="SYMMETRIC_DEFAULT", plain_text="hello world", key_id="0d0466b0-e727-4d9c-b35d-f84bb474a37f" ) response = client.encrypt_data(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
Encrypt plaintext data hello world using the CMK whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f and the SYMMETRIC_DEFAULT encryption algorithm.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 |
package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" kms "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := kms.NewKmsClient( kms.KmsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.EncryptDataRequest{} encryptionAlgorithmEncryptDataRequestBody:= model.GetEncryptDataRequestBodyEncryptionAlgorithmEnum().SYMMETRIC_DEFAULT request.Body = &model.EncryptDataRequestBody{ EncryptionAlgorithm: &encryptionAlgorithmEncryptDataRequestBody, PlainText: "hello world", KeyId: "0d0466b0-e727-4d9c-b35d-f84bb474a37f", } response, err := client.EncryptData(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Status Codes
Status Code |
Description |
---|---|
200 |
Request succeeded. |
400 |
Invalid request parameters. |
401 |
Username and password are required for the requested page. |
403 |
Authentication failed. |
404 |
The resource does not exist. |
500 |
Internal service error. |
502 |
Failed to complete the request. The server receives an invalid response from the upstream server. |
504 |
Gateway timed out. |
Error Codes
See Error Codes.
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