[−][src]Function salsa20::hsalsa20

pub fn hsalsa20(
    key: &Key, 
    input: &GenericArray<u8, U16>
) -> GenericArray<u8, U32>
This is supported on feature="hsalsa20" only.

The HSalsa20 function defined in the paper "Extending the Salsa20 nonce"

https://cr.yp.to/snuffle/xsalsa-20110204.pdf

HSalsa20 takes 512-bits of input:

  • Constants (u32 x 4)
  • Key (u32 x 8)
  • Nonce (u32 x 4)

It produces 256-bits of output suitable for use as a Salsa20 key