Package net.i2p.crypto

Interface EntropyHarvester

  • All Known Implementing Classes:
    FortunaRandomSource, RandomSource
    public interface EntropyHarvester
    Allow various components with some entropy to feed that entropy back into some PRNG. The quality of the entropy provided varies, so anything harvesting should discriminate based on the offered "source" of the entropy, silently discarding insufficient entropy sources.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void feedEntropy​(String source, byte[] data, int offset, int len)
      Feed the entropy pools with data[offset:offset+len]
      void feedEntropy​(String source, long data, int bitoffset, int bits)
      Feed the entropy pools with the bits in the data

    • Method Detail

      • feedEntropy

        void feedEntropy​(String source,
                 byte[] data,
                 int offset,
                 int len)
        Feed the entropy pools with data[offset:offset+len]
        Parameters:
        source - origin of the entropy, allowing the harvester to determine how much to value the data
        offset - index into the data array to start
        len - how many bytes to use

      • feedEntropy

        void feedEntropy​(String source,
                 long data,
                 int bitoffset,
                 int bits)
        Feed the entropy pools with the bits in the data
        Parameters:
        source - origin of the entropy, allowing the harvester to determine how much to value the data
        bitoffset - bit index into the data array to start (using java standard big-endian)
        bits - how many bits to use