Method: locations.generateRandomBytes

HTTP request
Path parameters
Request body
- JSON representation
Response body
- JSON representation
Authorization scopes
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Full name: projects.locations.generateRandomBytes

Generate random bytes using the Cloud KMS randomness source in the provided location.

HTTP request

Choose a location:

The URLs use gRPC Transcoding syntax.

Path parameters

Parameters

Parameters
`location`	`string` The project-specific location in which to generate random bytes. For example, "projects/my-project/locations/us-central1".

location

string

The project-specific location in which to generate random bytes. For example, "projects/my-project/locations/us-central1".

Request body

The request body contains data with the following structure:

JSON representation
{ "lengthBytes" : integer , "protectionLevel" : enum ( `ProtectionLevel` ) }

Fields

Fields
`lengthBytes`	`integer` The length in bytes of the amount of randomness to retrieve. Minimum 8 bytes, maximum 1024 bytes.
`protectionLevel`	`enum ( ProtectionLevel )` The `ProtectionLevel` to use when generating the random data. Currently, only `HSM` protection level is supported.

lengthBytes

integer

The length in bytes of the amount of randomness to retrieve. Minimum 8 bytes, maximum 1024 bytes.

protectionLevel

enum ( ProtectionLevel )

The ProtectionLevel to use when generating the random data. Currently, only HSM protection level is supported.

Response body

Response message for KeyManagementService.GenerateRandomBytes .

If successful, the response body contains data with the following structure:

JSON representation
{ "data" : string , "dataCrc32c" : string }

Fields

Fields
`data`	`string ( bytes format)` The generated data. A base64-encoded string.
`dataCrc32c`	`string ( Int64Value format)` Integrity verification field. A CRC32C checksum of the returned `GenerateRandomBytesResponse.data` . An integrity check of `GenerateRandomBytesResponse.data` can be performed by computing the CRC32C checksum of `GenerateRandomBytesResponse.data` and comparing your results to this field. Discard the response in case of non-matching checksum values, and perform a limited number of retries. A persistent mismatch may indicate an issue in your computation of the CRC32C checksum. Note: This field is defined as int64 for reasons of compatibility across different languages. However, it is a non-negative integer, which will never exceed 2^32-1, and can be safely downconverted to uint32 in languages that support this type.

data

string ( bytes format)

The generated data.

A base64-encoded string.

dataCrc32c

string ( Int64Value format)

Integrity verification field. A CRC32C checksum of the returned GenerateRandomBytesResponse.data . An integrity check of GenerateRandomBytesResponse.data can be performed by computing the CRC32C checksum of GenerateRandomBytesResponse.data and comparing your results to this field. Discard the response in case of non-matching checksum values, and perform a limited number of retries. A persistent mismatch may indicate an issue in your computation of the CRC32C checksum. Note: This field is defined as int64 for reasons of compatibility across different languages. However, it is a non-negative integer, which will never exceed 2^32-1, and can be safely downconverted to uint32 in languages that support this type.

Authorization scopes

Requires one of the following OAuth scopes:

https://www.googleapis.com/auth/cloudkms
https://www.googleapis.com/auth/cloud-platform

For more information, see the Authentication Overview .

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