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crypto: use btcec/v2 for no-cgo (#24533)

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This updates the no-cgo implementations in the crypto package to use
the github.com/btcsuite/btcd/btcec/v2 module instead of the older btcec
package that was part of the main github.com/btcsuite/btcd module.

name                   old time/op  new time/op  delta
EcrecoverSignature-32   198µs ± 0%   144µs ± 0%  -27.11%
VerifySignature-32      177µs ± 0%   128µs ± 0%  -27.44%
DecompressPubkey-32    20.9µs ± 0%  10.1µs ± 0%  -51.51%

Use (*ModNScalar).IsOverHalfOrder instead of math/big.Int when checking
for malleable signatures.
This commit is contained in:
Jonathan Chappelow
2022-03-16 08:23:14 -05:00
committed by GitHub
parent 7a80cf6543
commit 830231c1c4
4 changed files with 64 additions and 39 deletions
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2
tests/fuzzers/secp256k1/secp_fuzzer.go
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@ -21,7 +21,7 @@ package secp256k1
import (
"fmt"
"github.com/btcsuite/btcd/btcec"
"github.com/btcsuite/btcd/btcec/v2"
"github.com/ethereum/go-ethereum/crypto/secp256k1"
fuzz "github.com/google/gofuzz"
)