val ecdsa_verify_hashed_msg (msgHash:lbytes 32ul) (public_key signature:lbytes 64ul) : Stack bool
  (requires fun h ->
    live h msgHash /\ live h public_key /\ live h signature)
  (ensures fun h0 b h1 -> modifies0 h0 h1 /\
    b == S.ecdsa_verify_hashed_msg (as_seq h0 msgHash) (as_seq h0 public_key) (as_seq h0 signature))
let ecdsa_verify_hashed_msg m public_key signature =
  VK.ecdsa_verify_hashed_msg m public_key signature
val ecdsa_verify_hashed_msg (msgHash:lbytes 32ul) (public_key signature:lbytes 64ul) : Stack bool
  (requires fun h ->
    live h msgHash /\ live h public_key /\ live h signature)
  (ensures fun h0 b h1 -> modifies0 h0 h1 /\
    b == S.ecdsa_verify_hashed_msg (as_seq h0 msgHash) (as_seq h0 public_key) (as_seq h0 signature))
let ecdsa_verify_hashed_msg m public_key signature =
VK.ecdsa_verify_hashed_msg m public_key signature
Hacl.K256.ECDSA.fst.checked
Spec.K256.fst.checked prims.fst.checked Lib.Sequence.fsti.checked Lib.RawIntTypes.fsti.checked Lib.IntTypes.fsti.checked Lib.ByteSequence.fsti.checked Lib.Buffer.fsti.checked Hacl.Streaming.SHA2.fst.checked Hacl.Spec.K256.Field52.Definitions.Lemmas.fst.checked Hacl.K256.Scalar.fsti.checked Hacl.K256.Field.fsti.checked Hacl.Impl.K256.Verify.fst.checked Hacl.Impl.K256.Sign.fst.checked Hacl.Impl.K256.PointMul.fsti.checked Hacl.Impl.K256.Point.fsti.checked Hacl.Bignum.Base.fst.checked FStar.UInt8.fsti.checked FStar.UInt32.fsti.checked FStar.Pervasives.fsti.checked FStar.Mul.fst.checked FStar.HyperStack.ST.fsti.checked FStar.HyperStack.fst.checked
Hacl.K256.ECDSA.fst
Hacl.K256.ECDSA.lbytes FStar.UInt32.__uint_to_t Hacl.Impl.K256.Verify.ecdsa_verify_hashed_msg Prims.bool
module Hacl.K256.ECDSA

open FStar.HyperStack
open FStar.HyperStack.ST
open FStar.Mul

open Lib.IntTypes
open Lib.Buffer

module ST = FStar.HyperStack.ST
module LSeq = Lib.Sequence
module BSeq = Lib.ByteSequence

module S = Spec.K256
module BDL = Hacl.Spec.K256.Field52.Definitions.Lemmas

module P = Hacl.Impl.K256.Point
module SK = Hacl.Impl.K256.Sign
module VK = Hacl.Impl.K256.Verify

open Hacl.K256.Field
open Hacl.K256.Scalar

#set-options "--z3rlimit 50 --fuel 0 --ifuel 0"

let ecdsa_sign_hashed_msg signature msgHash private_key nonce =
  SK.ecdsa_sign_hashed_msg signature msgHash private_key nonce


let ecdsa_sign_sha256 signature msg_len msg private_key nonce =
  push_frame ();
  let msgHash = create 32ul (u8 0) in
  Hacl.Streaming.SHA2.hash_256 msg msg_len msgHash;
  let b = ecdsa_sign_hashed_msg signature msgHash private_key nonce in
  pop_frame ();
  b
val ecdsa_verify_hashed_msg (msgHash:lbytes 32ul) (public_key signature:lbytes 64ul) : Stack bool
  (requires fun h ->
    live h msgHash /\ live h public_key /\ live h signature)
  (ensures fun h0 b h1 -> modifies0 h0 h1 /\
    b == S.ecdsa_verify_hashed_msg (as_seq h0 msgHash) (as_seq h0 public_key) (as_seq h0 signature))

    msgHash: Hacl.K256.ECDSA.lbytes 32ul ->
    public_key: Hacl.K256.ECDSA.lbytes 64ul ->
    signature: Hacl.K256.ECDSA.lbytes 64ul
  -> FStar.HyperStack.ST.Stack Prims.bool