def stb256_len

bend-osdev-hashes@0.1.0.0 · PROOF.bend:114

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-hashes@0.1.0.0/hashes.bend as Hs
import bend-osdev-hashes@0.1.0.0/streebog.bend as ST

114def stb256_len(x: Hs.HsW16) -> {B.Octets.len(ST.hs.stb.out256(x)) == 32n : Nat}:
115  match x:
116    case Hs.HsW16{a0, a1, a2, a3, a4, a5, a6, a7, +a8, +a9, +a10, +a11, +a12, +a13, +a14, +a15}:
117      %Equal.sym(Nat, B.Octets.len(B.Octets.of_list(B.append(B.le32(a8), B.append(B.le32(a9), B.append(B.le32(a10), B.append(B.le32(a11), B.append(B.le32(a12), B.append(B.le32(a13), B.append(B.le32(a14), B.le32(a15)))))))))), B.len(B.append(B.le32(a8), B.append(B.le32(a9), B.append(B.le32(a10), B.append(B.le32(a11), B.append(B.le32(a12), B.append(B.le32(a13), B.append(B.le32(a14), B.le32(a15))))))))), octets_len_of(B.append(B.le32(a8), B.append(B.le32(a9), B.append(B.le32(a10), B.append(B.le32(a11), B.append(B.le32(a12), B.append(B.le32(a13), B.append(B.le32(a14), B.le32(a15)))))))))) : {_ == 32n : Nat}
118      stb256_len_list(a8, a9, a10, a11, a12, a13, a14, a15)