def CrCts.decrypt

bend-osdev-crypto@0.1.0.0 · cts.bend:101

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

101# CBC-CS3 decryption
102def CrCts.decrypt(~K: Data, ~Blk: Data, ~bsize: Nat, ~dec: K -> Blk -> Blk, ~blk_of: B.Octets -> Maybe<&2, Blk>, ~blk_to: Blk -> B.Octets, +k: K, +iv: B.Octets, +c: B.Octets) -> Result<&2, &2, Cr.CrError, B.Octets>:
103  Result.map(&2, &2, Cr.CrError, Unit, B.Octets, u => cr.cts.dec.go(~K, ~Blk, ~bsize, ~dec, ~blk_of, ~blk_to, O.CrOct.pieces(bsize, B.Octets.to_list(c)), k, iv, Nil{}), cr.cts.check(bsize, iv, B.Octets.len(c)))