## Description
closing in on completion of linting
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## Description
TLDR; check for `s.IsOverHalfOrder()` with less steps
Before this PR:
```go
// parse the signature:
signature := signatureFromBytes(sigStr)
// Reject malleable signatures. libsecp256k1 does this check but btcec doesn't.
// see: f9401ae011/crypto/signature_nocgo.go (L90-L93)
// Serialize() would negate S value if it is over half order.
// Hence, if the signature is different after Serialize() if should be rejected.
modifiedSignature, parseErr := ecdsa.ParseDERSignature(signature.Serialize())
if parseErr != nil {
return false
}
if !signature.IsEqual(modifiedSignature) {
return false
}
```
It's serializing the signature into a new variable and then comparing if both are equal. Inside `Serialize()` we have:
5d537320a0/dcrec/secp256k1/ecdsa/signature.go (L88-L95)
```go
// Ensure the S component of the signature is less than or equal to the half
// order of the group because both S and its negation are valid signatures
// modulo the order, so this forces a consistent choice to reduce signature
// malleability.
sigS := new(secp256k1.ModNScalar).Set(&sig.s)
if sigS.IsOverHalfOrder() {
sigS.Negate()
}
```
Before btcec update to v2:
Until btcec update this was simpler because S was exported in the signature: ed9cd41396 (diff-30a6b594e157a12a28bf8a26f65ab4de1dc3c65c8419e5756f0b9c25d9ce1a93L46)
```go
if signature.S.Cmp(secp256k1halfN) > 0 {
return false
}
```
Closes: #XXXX
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Similar to Tendermint's PR,
https://github.com/tendermint/tendermint/pull/9250
Note that crypto/ledger is not updated in this PR, because if its
dependency on the R and S values being exposed by ParseDERSignature.
Updates #13423
Signed-off-by: Elias Naur <elias@orijtech.com>
Signed-off-by: Elias Naur <elias@orijtech.com>
Co-authored-by: Marko <marbar3778@yahoo.com>
Fixes an oversight that hadn't been considered when the build
guards were added to the other files in the same directory, that
this test requires linking with code that hooks into cgo. This change
adds the build guard
+build cgo
Fixes#13266
* mainly sdk.int to cosmossdk.io/math
* staking keys
* fumpt
* var-naming linter errors and a fumpt
* Update CHANGELOG.md
* Update .golangci.yml
* Update CHANGELOG.md
* Update test_helpers.go
* Update test_helpers.go
* fumpt and lint
* this lints the db module, and makes it easier to use. It adds breaking name changes
* DBConnection -> Connection
* previous commit contained a merge error
* Update test_helpers.go
* Update test_helpers.go
* db renamings
* merge master
* changelog
* DBWriter -> Writer
* consistent multistore reciever
* standard recievers for multistore v2alpha1
* general cleanup of linting issues
* more linter fixes
* remove prealloc linter
* nolint the secp256k1 import
* nolint the secp256k1 package
* completenolint resulting in a diff that has only nolints
## Description
When locally working with golangci-lint, we can see that there were many deprecation warnings about sdk.Int. This PR resolves that and makes 1-2 other linting related changes. Issue on linting coming next.
This also moves BitCurve to bitCurve.
I expect that this set of changes will require several pull requests, one of them to the settings for the linter.
It also does a gofumpt, because we had various formatting-related linters fail, too.
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## Description
Closes: #10747
- update secp256k1 cgo fork,
- debug verify bytes
```
benchmark old ns/op new ns/op delta
BenchmarkKeyGeneration-10 407 413 +1.35%
BenchmarkSigning-10 95099 36754 -61.35%
BenchmarkVerification-10 215551 48053 -77.71%
benchmark old allocs new allocs delta
BenchmarkKeyGeneration-10 2 2 +0.00%
BenchmarkSigning-10 83 4 -95.18%
BenchmarkVerification-10 74 1 -98.65%
benchmark old bytes new bytes delta
BenchmarkKeyGeneration-10 96 96 +0.00%
BenchmarkSigning-10 5283 196 -96.29%
BenchmarkVerification-10 3537 32 -99.10%
```
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## Description
Closes: #9404
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## Description
+ fixing `x/bank/migrations/v44.migrateDenomMetadata` - we could potentially put a wrong data in a new key if the old keys have variable length.
+ linting the code
Putting in the same PR because i found the issue when running a linter.
Depends on: #10112
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## Description
Closes: #10082
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