sonr/crypto/ted25519/frost/challenge_derive.go
Prad Nukala 807b2e86ec
feature/1220 origin handle exists method (#1241)
* feat: add docs and CI workflow for publishing to onsonr.dev

* (refactor): Move hway,motr executables to their own repos

* feat: simplify devnet and testnet configurations

* refactor: update import path for didcrypto package

* docs(networks): Add README with project overview, architecture, and community links

* refactor: Move network configurations to deploy directory

* build: update golang version to 1.23

* refactor: move logger interface to appropriate package

* refactor: Move devnet configuration to networks/devnet

* chore: improve release process with date variable

* (chore): Move Crypto Library

* refactor: improve code structure and readability in DID module

* feat: integrate Trunk CI checks

* ci: optimize CI workflow by removing redundant build jobs

---------

Co-authored-by: Darp Alakun <i@prad.nu>
2025-01-06 17:06:10 +00:00

28 lines
662 B
Go
Executable File

//
// Copyright Coinbase, Inc. All Rights Reserved.
//
// SPDX-License-Identifier: Apache-2.0
//
package frost
import (
"crypto/sha512"
"github.com/onsonr/sonr/crypto/core/curves"
)
type ChallengeDerive interface {
DeriveChallenge(msg []byte, pubKey curves.Point, r curves.Point) (curves.Scalar, error)
}
type Ed25519ChallengeDeriver struct{}
func (ed Ed25519ChallengeDeriver) DeriveChallenge(msg []byte, pubKey curves.Point, r curves.Point) (curves.Scalar, error) {
h := sha512.New()
_, _ = h.Write(r.ToAffineCompressed())
_, _ = h.Write(pubKey.ToAffineCompressed())
_, _ = h.Write(msg)
return new(curves.ScalarEd25519).SetBytesWide(h.Sum(nil))
}