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README.md 665B
README.md 665B
Catena
Catena is a memory-consuming password scrambler that excellently thwarts massively parallel attacks on cheap memory-constrained hardware, such as recent graphical processing units (GPUs). Furthermore, Catena provides resistance against cache-timing attacks, since its memory-access pattern is password-independent.
Academic paper: catena-v3.1.pdf
Rspamd specific
Rspamd implements Catena-Butterfly using full blake2b hash implemented in the cryptobox.
Original code: https://github.com/medsec/catena