AWS SDK Version 3 for .NET
API Reference

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Returns a random byte string that is cryptographically secure.

For more information about entropy and random number generation, see the AWS Key Management Service Cryptographic Details whitepaper.


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to GenerateRandomAsync.

Namespace: Amazon.KeyManagementService
Assembly: AWSSDK.KeyManagementService.dll
Version: 3.x.y.z


public virtual GenerateRandomResponse GenerateRandom(
         GenerateRandomRequest request
Type: Amazon.KeyManagementService.Model.GenerateRandomRequest

Container for the necessary parameters to execute the GenerateRandom service method.

Return Value
The response from the GenerateRandom service method, as returned by KeyManagementService.


DependencyTimeoutException The system timed out while trying to fulfill the request. The request can be retried.
KMSInternalException The request was rejected because an internal exception occurred. The request can be retried.


The following example uses AWS KMS to generate 32 bytes of random data.

To generate random data

var response = client.GenerateRandom(new GenerateRandomRequest 
    NumberOfBytes = 32 // The length of the random data, specified in number of bytes.

MemoryStream plaintext = response.Plaintext; // The random data.


Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also