{-# OPTIONS_GHC -fno-warn-incomplete-uni-patterns #-}
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE OverloadedStrings #-}
module Main where
import qualified Data.ByteString as BS
import qualified Data.ByteString.Base16 as B16
import Data.Maybe (fromJust)
import Data.Word.Wider (Wider(..))
import Control.DeepSeq
import qualified Crypto.Curve.Secp256k1 as S
import qualified Weigh as W
instance NFData S.Projective
instance NFData S.Affine
instance NFData S.ECDSA
instance NFData S.Context
decodeLenient :: BS.ByteString -> BS.ByteString
decodeLenient bs = case B16.decode bs of
Nothing -> error "bang"
Just b -> b
parse_int :: BS.ByteString -> Wider
parse_int bs = case S.parse_int256 bs of
Nothing -> error "bang"
Just v -> v
-- note that 'weigh' doesn't work properly in a repl
main :: IO ()
main = W.mainWith $ do
parse_int256
ge
add
double
mul
mul_wnaf
derive_pub
schnorr
ecdsa
ecdh
ge :: W.Weigh ()
ge =
let !t = 2
!b = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed
in W.wgroup "ge" $ do
W.func' "small" S.ge t
W.func' "large" S.ge b
parse_int256 :: W.Weigh ()
parse_int256 =
let !a = BS.replicate 32 0x00
!b = BS.replicate 32 0xFF
in W.wgroup "parse_int256" $ do
W.func' "parse_int (small)" parse_int a
W.func' "parse_int (big)" parse_int b
add :: W.Weigh ()
add =
let !p = fromJust . S.parse_point . decodeLenient $
"0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
!r = fromJust . S.parse_point . decodeLenient $
"03a2113cf152585d96791a42cdd78782757fbfb5c6b2c11b59857eb4f7fda0b0e8"
!q = fromJust . S.parse_point . decodeLenient $
"02f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9"
!s = fromJust . S.parse_point . decodeLenient $
"0306413898a49c93cccf3db6e9078c1b6a8e62568e4a4770e0d7d96792d1c580ad"
in W.wgroup "add" $ do
W.func' "p + q (trivial projective points)" (S.add p) q
W.func' "s + p (nontrivial mixed points)" (S.add s) p
W.func' "r + s (nontrivial projective points)" (S.add r) s
double :: W.Weigh ()
double =
let !p = fromJust . S.parse_point . decodeLenient $
"0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
!r = fromJust . S.parse_point . decodeLenient $
"03a2113cf152585d96791a42cdd78782757fbfb5c6b2c11b59857eb4f7fda0b0e8"
in W.wgroup "double" $ do
W.func' "2 p (double, trivial projective point)" S.double p
W.func' "2 r (double, nontrivial projective point)" S.double r
mul :: W.Weigh ()
mul =
let !g = S._CURVE_G
!t = 2
!b = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed
in W.wgroup "mul" $ do
W.func' "2 G" (S.mul g) t
W.func' "(2 ^ 255 - 19) G" (S.mul g) b
mul_wnaf :: W.Weigh ()
mul_wnaf =
let !t = 2
!b = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed
!con = S.precompute
in W.wgroup "mul_wnaf" $ do
W.func' "precompute" S._precompute (8 :: Int)
W.func' "2 G" (S.mul_wnaf con) t
W.func' "(2 ^ 255 - 19) G" (S.mul_wnaf con) b
derive_pub :: W.Weigh ()
derive_pub =
let !t = 2
!b = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed
!con = S.precompute
in W.wgroup "derive_pub" $ do
W.func' "sk = 2" S.derive_pub t
W.func' "sk = 2 ^ 255 - 19" S.derive_pub b
W.func' "wnaf, sk = 2" (S.derive_pub' con) t
W.func' "wnaf, sk = 2 ^ 255 - 19" (S.derive_pub' con) b
schnorr :: W.Weigh ()
schnorr =
let !t = 2
!b = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed
!con = S.precompute
!s_msg = decodeLenient
"243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89"
!s_aux = decodeLenient
"0000000000000000000000000000000000000000000000000000000000000001"
!s_sig = decodeLenient
"6896BD60EEAE296DB48A229FF71DFE071BDE413E6D43F917DC8DCF8C78DE33418906D11AC976ABCCB20B091292BFF4EA897EFCB639EA871CFA95F6DE339E4B0A"
!(Just !s_pk) = S.parse_point . decodeLenient $
"DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659"
in W.wgroup "schnorr" $ do
W.func "sign_schnorr (small)" (S.sign_schnorr t s_msg) s_aux
W.func "sign_schnorr (large)" (S.sign_schnorr b s_msg) s_aux
W.func "sign_schnorr' (small)" (S.sign_schnorr' con t s_msg) s_aux
W.func "sign_schnorr' (large)" (S.sign_schnorr' con b s_msg) s_aux
W.func "verify_schnorr" (S.verify_schnorr s_msg s_pk) s_sig
W.func "verify_schnorr'" (S.verify_schnorr' con s_msg s_pk) s_sig
ecdsa :: W.Weigh ()
ecdsa =
let !t = 2
!b = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed
!con = S.precompute
!msg = "i approve of this message"
!s_msg = decodeLenient
"243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89"
!(Just !pub) = S.derive_pub b
!(Just !sig) = S.sign_ecdsa b s_msg
in W.wgroup "ecdsa" $ do
W.func "sign_ecdsa (small)" (S.sign_ecdsa t) s_msg
W.func "sign_ecdsa (large)" (S.sign_ecdsa b) s_msg
W.func "sign_ecdsa' (small)" (S.sign_ecdsa' con t) s_msg
W.func "sign_ecdsa' (large)" (S.sign_ecdsa' con b) s_msg
W.func "verify_ecdsa" (S.verify_ecdsa msg pub) sig
W.func "verify_ecdsa'" (S.verify_ecdsa' con msg pub) sig
ecdh :: W.Weigh ()
ecdh =
let !b = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed
!(Just !pub) = S.parse_point . decodeLenient $
"bd02b9dfc8ef760708950bd972f2dc244893b61b6b46c3b19be1b2da7b034ac5"
in W.wgroup "ecdh" $ do
W.func "ecdh (small)" (S.ecdh pub) 2
W.func "ecdh (large)" (S.ecdh pub) b