Help Center/ Data Encryption Workshop/ API Reference/ APIs/ Key Management APIs/ DEK Management/ Generating a Random Number
Updated on 2025-09-15 GMT+08:00
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Generating a Random Number

Function

This API is used to generate an 8-bit to 8,192-bit random number.

Calling Method

For details, see Calling APIs.

URI

POST /v1.0/{project_id}/kms/gen-random

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID

Request Parameters

Table 2 Request header 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.
Table 3 Request body parameters

Parameter

Mandatory

Type

Description

random_data_length

Yes

String

Bit length of a random number.

The value must be a multiple of 8 and ranges from 8 to 8192, for example, 512.

sequence

No

String

A 36-byte serial number of a request message, for example, 919c82d4-8046-4722-9094-35c3c6524cff

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

random_data

String

Random number in hexadecimal format. Two characters represent 1 byte. The length of the random number must be the same as that of the user input parameter random_data_length.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error

Object

Error message
Table 6 ErrorDetail

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

Table 7 Response body parameters

Parameter

Type

Description

error

Object

Error message
Table 8 ErrorDetail

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

Table 9 Response body parameters

Parameter

Type

Description

error

Object

Error message
Table 10 ErrorDetail

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

Table 11 Response body parameters

Parameter

Type

Description

error

Object

Error message
Table 12 ErrorDetail

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

Table 13 Response body parameters

Parameter

Type

Description

error

Object

Error message
Table 14 ErrorDetail

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

Table 15 Response body parameters

Parameter

Type

Description

error

Object

Error message
Table 16 ErrorDetail

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

Table 17 Response body parameters

Parameter

Type

Description

error

Object

Error message
Table 18 ErrorDetail

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

Generate a 512-bit random number.

{
  "random_data_length" : "512"
}

Example Responses

Status code: 200

Request succeeded.

{
  "random_data" : "5791C223E87120BE4B98D168F47A58BB2A88834EEADC"
}

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.

Parent Topic: DEK Management