def cr.xcbc.full

bend-osdev-crypto@0.1.0.0 · xcbc.bend:48

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-crypto@0.1.0.0/octets.bend as O

48def cr.xcbc.full(full: Bool, +bsize: Nat, +k2: B.Octets, +k3: B.Octets, +p: B.Octets) -> B.Octets:
49  match full:
50    case True{}:
51      O.CrOct.xor(p, k2)
52    case False{}:
53      O.CrOct.xor(B.Octets.append(p, B.Octets.cons(128, B.Octets.zeros(Nat.sub(bsize, Nat.add(B.Octets.len(p), 1n))))), k3)