Hot answers tagged implementation
Salsa/ChaCha and the other eSTREAM winners are likely to be the "fastest but still secure" options today. Don't forget authentication of course. Reduced-round ChaCha/Poly1305 is likely to be the fastest software-only option, due to tuned implementations in the libsodium and NaCl libraries. UPDATED: The following slide deck has good info on state of the art ...
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