def ap.shift

bend-osdev-aes@0.1.0.0 · PROOF.bend:1988

import Base
import bend-osdev-aes@0.1.0.0/aes.bend as X
import bend-collections@1.0.0.0/src/crypto/aes/aes.bend as A
import bend-collections@1.0.0.0/src/crypto/aes/types.bend as TT

1988def ap.shift(+s: TT.State) -> {X.aes.inv_shift(A.shift_rows(s)) == s : TT.State}:
1989  match s:
1990    case TT.S{TT.W{z0, z1, z2, z3}, TT.W{z4, z5, z6, z7}, TT.W{z8, z9, z10, z11}, TT.W{z12, z13, z14, z15}}:
1991      {==}