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What does scrypt offer over bcrypt? The only difference I seem to recall is that scrypt is more memory-intensive (making it so that the CPU/GPU/whatever isn't t
by pyre 14y ago
What does scrypt offer over bcrypt? The only difference I seem to recall is that scrypt is more memory-intensive (making it so that the CPU/GPU/whatever isn't the only bottleneck).
- tptacek 14y agoscrypt is designed to be difficult on hardware. Both bcrypt and scrypt are currently difficult on GPU hardware, but it's unlikely to remain that way. Both are better than PBKDF2. scrypt is likely to be better longer. But really: throw a dart at any of the three of them.
- jplewicke 14y agoIt sounds like one of the Bitcoin alternatives is scrypt based, and they are putatively getting a roughly 10x speedup from GPUs: https://en.bitcoin.it/wiki/Litecoin#Scrypt_Proof_of_Work https://en.bitcoin.it/wiki/Litecoin#Scrypt_Proof_of_Work . Is that a new development, or is it in the neighborhood of how GPU-resistant it was supposed to be?
- JoachimSchipper 14y agoThe Litecoin guys just set the "make GPUs suck" (aka "memory use") parameter too low.
- jplewicke 14y agoThanks!