Package org.bouncycastle.crypto.fips

Class FipsDRBG.Base

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      FipsDRBG.Builder fromDefaultEntropy()
      Return a builder using an EntropySourceProvider based on the default SecureRandom with predictionResistant set to false.
      FipsDRBG.Builder fromEntropySource​(java.security.SecureRandom entropySource, boolean predictionResistant)
      Construct a builder with an EntropySourceProvider based on the passed in SecureRandom and the passed in value for prediction resistance.
      FipsDRBG.Builder fromEntropySource​(EntropySourceProvider entropySourceProvider)
      Create a builder which makes creates the SecureRandom objects from a specified entropy source provider.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • fromDefaultEntropy

        public FipsDRBG.Builder fromDefaultEntropy()
        Return a builder using an EntropySourceProvider based on the default SecureRandom with predictionResistant set to false.

        Any SecureRandom created from a builder constructed like this will make use of input passed to SecureRandom.setSeed() if the default SecureRandom does for its generateSeed() call.

        Returns:
        a new Builder instance.

      • fromEntropySource

        public FipsDRBG.Builder fromEntropySource​(java.security.SecureRandom entropySource,
                                          boolean predictionResistant)
        Construct a builder with an EntropySourceProvider based on the passed in SecureRandom and the passed in value for prediction resistance.

        Any SecureRandom created from a builder constructed like this will make use of input passed to SecureRandom.setSeed() if the passed in SecureRandom does for its generateSeed() call.

        Parameters:
        entropySource - a source of entropy.
        predictionResistant - true if this entropySource is prediction resistant, false otherwise.
        Returns:
        a new Builder instance.

      • fromEntropySource

        public FipsDRBG.Builder fromEntropySource​(EntropySourceProvider entropySourceProvider)
        Create a builder which makes creates the SecureRandom objects from a specified entropy source provider.

        Note: If this method is used any calls to setSeed() in the resulting SecureRandom will be ignored.

        Parameters:
        entropySourceProvider - a provider of EntropySource objects.
        Returns:
        a new Builder instance.