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Re:Ampere Altra 80-core ARM CPU by drewg123 on Tuesday March 03, 2020 @02:14PM (#22477763)
Ah, that's interesting. We don't use chacha20. This was AES-GCM
Re:Ampere Altra 80-core ARM CPU by Rebelgecko on Tuesday March 03, 2020 @03:36PM (#22478477)
The situation is probably better now that ARMv8 has some crypto-specific instructions, but AES-GCM on older ARMs performed awfully without the instructions specifically for doing AES and Galois field multiplication