def kr47

bend-collections@1.0.0.0 · src/crypto/sha/core.bend:384

import Base
import bend-collections@1.0.0.0/src/crypto/sha/state.bend as S

384def kr47(q: Nat, win: ShaWindow, s: S.State) -> S.State:
385  match q win:
386    case 0n _:
387      s
388    case 1n+z W{a, +b, c, d, e, f, +g, h, i, j, l, m, o, r, +t, +u}:
389      +w = (small1(b) + g + small0(t) + u : U32)
390      kr48(z, W{w, a, b, c, d, e, f, g, h, i, j, l, m, o, r, t}, step(s, 275423344, w))