## Description
Added missing changelog and updated a `p256Order` comment to remove misleading part.
---
### Author Checklist
*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*
I have...
- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [x] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [x] provided a link to the relevant issue or specification
- [x] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [x] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [x] added a changelog entry to `CHANGELOG.md`
- [x] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [x] updated the relevant documentation or specification
- [x] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed
### Reviewers Checklist
*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*
I have...
- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)
* added low-s normalization to ecdsa secp256r1 signing
* go fmt fixes
* removed else block as golint required
* implement raw signature encoding for secp256r1
* move the creation of signature to after the check for sig string length
* fake commit to re-run checks? (move the creation of signature to after the check for sig string length)
* added a signature test for high s signature that requires sig validation to fail after the valid signature was mutated by extracting and scalar negating its s value
* reordered code to prevent mutated message from being used in sig verify
* added test for successful high_s signature with the ecdsa portion of the publicKey
* Remove comment for self-explanatory code.
Co-authored-by: Robert Zaremba <robert@zaremba.ch>
* Missing quote
Co-authored-by: Robert Zaremba <robert@zaremba.ch>
* Apply minor suggestions from code review
Co-authored-by: Robert Zaremba <robert@zaremba.ch>
* normalize comments for godoc
* refactored p256Order functions as private vars
* Div -> Rsh optimizing time for division
* resolve two code coverage issues; fix some small review issues
* test using private signatureRaw function instead of copying code. Added tests to improve code coverage
Co-authored-by: Aaron Craelius <aaron@regen.network>
Co-authored-by: Robert Zaremba <robert@zaremba.ch>
Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com>
Robert Zaremba
John Kemp