com.entrust.toolkit.security.crypto.random

Interface EntropySource

public interface EntropySource

Defines the interface to an entropy source.

FIPS 140-2:

This interface is part of the Toolkit's FIPS 140-2 cryptographic module and contains APIs that are considered part of the logical interface to the Toolkit's FIPS 140-2 cryptographic module; refer to the API documentation for further details

Since:

8.0

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getEntropy(int minEntropy) Retrieves the requested amount of entropy from this entropy source.

Method Detail

getEntropy

byte[] getEntropy(int minEntropy)

Retrieves the requested amount of entropy from this entropy source.

FIPS 140-2:

FIPS Service: Query Object

This API is part of the logical interface to the Toolkit's FIPS 140-2 cryptographic module; use of this API causes the caller to assume the FIPS 140-2 user role and accesses the following FIPS 140-2 logical interfaces:

• control input interface (API call, parameters)
• data output interface (return value)
• status output interface (exceptions)

Parameters:

minEntropy - [FIPS 140-2 control input] requested amount of entropy in bits; min-entropy is a worst-case measure of uncertainty

Returns:

[FIPS 140-2 data output] [FIPS 140-2 CSP] entropy

Throws:

Fips140ErrorStateException - [FIPS 140-2 status output] thrown if the Toolkit is not allowed to perform cryptographic operations