def mul_small_tight

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/curve25519/proof.bend:75

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/curve25519/field.bend as FS
import bend-collections-laws-crypto@1.0.0.0/src/crypto/curve25519/field.bend as F
import bend-collections-laws-crypto@1.0.0.0/proofs/lib/nat.bend as N
import bend-collections-laws-crypto@1.0.0.0/proofs/lib/word.bend as WD
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/curve25519/mulw.bend as MW

75def mul_small_tight(+one: Nat, +h1: {one == 1n : Nat}, +a: List<&2, U32>, +k: U32, +ha: {FS.tight(a) == True{} : Bool}, +hk: {Nat.is_lt(U32.to_nat(k), C.shift(17n, one)) == True{} : Bool}) -> FS.MulSmall.tight(one, h1, a, k, ha, hk):
76  tight_of(F.mul_small(a, k), MW.mul_small_okb(one, h1, a, k, ok(a, ha), N.lt_le(v(k), WD.sc(17n, one), hk)))