Package org.bouncycastle.crypto.fips

Class FipsSecureRandom

  • All Implemented Interfaces:
    java.io.Serializable
    public final class FipsSecureRandom
extends java.security.SecureRandom
    Base class for DRBG/RNG SecureRandom implementations that use FIPS approved algorithms.
    See Also:
    Serialized Form

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int getBlockSize()
      Return the block size of the underlying DRBG
      int getSecurityStrength()
      Return the security strength of the DRBG.
      void nextBytes​(byte[] bytes, byte[] additionalInput)  
      void reseed()
      Force a reseed.
      void reseed​(byte[] additionalInput)
      Force a reseed with additional input.
      void setSeed​(long seed)  

      • Methods inherited from class java.security.SecureRandom

        generateSeed, getAlgorithm, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstanceStrong, getParameters, getProvider, getSeed, next, nextBytes, nextBytes, reseed, setSeed, toString

      • Methods inherited from class java.util.Random

        doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • setSeed

        public void setSeed​(long seed)
        Overrides:
        setSeed in class java.security.SecureRandom

      • nextBytes

        public void nextBytes​(byte[] bytes,
                      byte[] additionalInput)

      • getBlockSize

        public int getBlockSize()
        Return the block size of the underlying DRBG
        Returns:
        number of bits produced each cycle.

      • getSecurityStrength

        public int getSecurityStrength()
        Return the security strength of the DRBG.
        Returns:
        the security strength (in bits) of the DRBG.

      • reseed

        public void reseed()
        Force a reseed.
        Overrides:
        reseed in class java.security.SecureRandom

      • reseed

        public void reseed​(byte[] additionalInput)
        Force a reseed with additional input.
        Parameters:
        additionalInput - additional input to be used in conjunction with reseed.