def cam.key.pick

bend-osdev-legacy-ciphers@0.1.0.0 · camellia.bend:317

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as L

317# the key for 16, 24 or 32 bytes, if n says so
318def cam.key.pick(n16: Bool, n24: Bool, n32: Bool, +xs: List<&2, U32>) -> Result<&2, &2, L.LcError, LcCamelliaKey>:
319  match n16 n24 n32:
320    case True{} _ _:
321      Done{cam.key128(xs)}
322    case False{} True{} _:
323      Done{cam.key192(xs)}
324    case False{} False{} True{}:
325      Done{cam.key256(xs)}
326    case False{} False{} False{}:
327      Fail{L.LcBadKeyLength{B.len(xs)}}