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

Modifier and Type	Method and 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