Method Detail

• reduce

  byte[] reduce​(byte[] s)

  Reduce the given scalar mod l.

  From the Ed25519 paper:
  Here we interpret 2b-bit strings in little-endian form as integers in {0, 1,..., 2^(2b)-1}.

  Parameters:

  s -

  Returns:

  s mod l

• multiplyAndAdd

  byte[] multiplyAndAdd​(byte[] a,
                        byte[] b,
                        byte[] c)

  r = (a * b + c) mod l

  Parameters:

  a -

  b -

  c -

  Returns:

  (a*b + c) mod l