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by floody-berry
4258 days ago
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ChaCha also got a lot of review in the form of BLAKE, whose security margin was roughly consistent with the existing cryptanalysis of ChaCha. AES-128-CTR with AES-NI is ~0.8-1.2cpb on Haswell/Ivy Bridge/Bulldozer Chacha20 is ~1.1cpb on AVX2, ~2.2cpb on AVX/XOP, ~2.8 on SSSE-3, and ~3.3cpb on SSE2. ChaCha20 also performs much better on 32 bit systems, especially those without SIMD. |
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