def public_key_v

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/secp256k1/ppub.bend:58

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/curve.bend as CV
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/ecdsa.bend as ES
import bend-collections-laws-crypto@1.0.0.0/src/crypto/secp256k1/bytes.bend as B
import bend-collections-laws-crypto@1.0.0.0/src/crypto/secp256k1/ecdsa.bend as E
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/secp256k1/blist.bend as BL

58# the SEC 1 public key of a secret key
59def public_key_v(+one: Nat, +h1: {one == 1n : Nat}, +sk: List<&2, U32>, c: Bool) -> {E.public_key(sk, c) == ES.public_key(one, sk, c) : Maybe<&2, List<&2, U32>>}:
60  %Equal.sym(Bool, B.has_len(32n, sk), CV.length_is(32n, sk), BL.hl_is(32n, sk)) : {E.public_key_d(c, E.secret_if(B.of_be(sk), Bool.and(_, E.scalar_ok(B.of_be(sk))))) == ES.public_d(one, c, CV.os2ip(sk), Bool.and(CV.length_is(32n, sk), ES.scalar_ok(one, CV.os2ip(sk)))) : Maybe<&2, List<&2, U32>>}
61  pub_len(one, h1, c, sk, CV.length_is(32n, sk), BL.hl_is(32n, sk))