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Just incorporate the X64 ASM version of Salsa20/12 for X64 platforms. This gives us (for example) 1.5gb/sec encryption on a Core i5 2.8ghz.

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Adam Ierymenko 2017-04-18 08:45:37 -07:00
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Blazingly fast X64 ASM implementation of Salsa20/12
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This is ripped from the [cnacl](https://github.com/cjdelisle/cnacl) source. The actual code is by Danial J. Bernstein and is in the public domain.
This is included on Linux and Mac 64-bit builds and is significantly faster than the SSE intrinsics or C versions. It's used for packet encode/decode only since its use differs a bit from the regular Salsa20 C++ class. Specifically it lacks the ability to be called on multiple blocks, preferring instead to take a key and a single stream to encrypt and that's it.