GenerateRandomBytes Method

Generates a cryptographically-secure random byte string.

Syntax

amazonkms.generateRandomBytes(numBytes, [callback])

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for this method is defined as:

function(err){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

This method uses Amazon KMS to generate a cryptographically-secure random byte string of the specified length (measured in bytes). The random bytes are output to the the OutputFile or the OutputData property.

The value passed for NumBytes must be in the range 1 to 1024.