What I don't really understand about group theory: is multiplying a group element by an integer commutative?
@brixen NaCl has a "standard group element" you multiply by to produce group elements
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@bascule it depends how you define the operation. Cf scalar matrix multiplication -
@brixen@nuclearsandwich not entirely sure, but here's the source code: https://github.com/jedisct1/libsodium/blob/master/src/libsodium/crypto_scalarmult/curve25519/ref/smult.c#L247 … -
@bascule if that code has docs somewhere I might be able to give you an answer. -
@nuclearsandwich hope you find RbNaCl to be well-documented. We've really been trying hard: https://github.com/cryptosphere/rbnacl/blob/master/lib/rbnacl/scalar.rb … -
@bascule I sadly don't have time to sit down and be good about it, but my intuition is that it probably doesn't commute. -
@nuclearsandwich not really an issue, just trying to double check my math on this: https://gist.github.com/tarcieri/4747652 … -
@bascule@nuclearsandwich There's also ##crypto on freenode. -
@yfeldblum@nuclearsandwich cool I should swing by sometime
End of conversation
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