def m4

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/argon2/gb.bend:75

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake2b/types.bend as T
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2b.bend as B

75# The specification's GB after its first k assignment pairs.
76def m4(+a2: T.Lane, +b1: T.Lane, +c2: T.Lane, +d2: T.Lane) -> T.Quad:
77  T.Q{a2, B.rotr(B.xor(b1, c2), 63n), c2, d2}