org.bouncycastle.crypto.generators

Interface Argon2BytesGenerator.BlockPool

All Known Implementing Classes:

Argon2BytesGenerator.FixedBlockPool

Enclosing class:

Argon2BytesGenerator

public static interface Argon2BytesGenerator.BlockPool

Strategy for allocating and recycling Argon2 Argon2BytesGenerator.Block objects.

An implementation may simply return fresh blocks from allocate() (the default behaviour) or pool them so the underlying long[] buffers can be reused across successive generateBytes calls. Implementations must accept matching allocate/deallocate pairs - the generator does not guard against double-deallocation of the same block.

The generator zeroises a block before passing it to #deallocate(Block), so an implementation never receives password-derived data and need not clear anything itself; a block it hands out from allocate() may be returned as it came back. Argon2BytesGenerator.Block.clear() is public for an implementation that wants to zeroise blocks it obtained some other way. Size a pool that is to recycle a whole run with Argon2BytesGenerator.getBlockCount(int, int).

Method Summary

Modifier and Type	Method and Description
Argon2BytesGenerator.Block	allocate()
void	deallocate(Argon2BytesGenerator.Block block)

Method Detail

allocate

Argon2BytesGenerator.Block allocate()

deallocate

void deallocate(Argon2BytesGenerator.Block block)