mirror of
https://github.com/onsonr/sonr.git
synced 2025-03-10 21:09:11 +00:00
Prad Nukala
807b2e86ec
* 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>
74 lines
1.7 KiB
Go
Executable File
74 lines
1.7 KiB
Go
Executable File
//
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// Copyright Coinbase, Inc. All Rights Reserved.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package bbs
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import (
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"errors"
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"fmt"
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"github.com/onsonr/sonr/crypto/core/curves"
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)
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// PublicKey is a BBS+ verification key
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type PublicKey struct {
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value curves.PairingPoint
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}
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func (pk *PublicKey) Init(curve *curves.PairingCurve) *PublicKey {
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pk.value = curve.NewG2IdentityPoint()
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return pk
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}
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func (pk PublicKey) MarshalBinary() ([]byte, error) {
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return pk.value.ToAffineCompressed(), nil
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}
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func (pk *PublicKey) UnmarshalBinary(in []byte) error {
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value, err := pk.value.FromAffineCompressed(in)
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if err != nil {
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return err
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}
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var ok bool
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pk.value, ok = value.(curves.PairingPoint)
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if !ok {
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return errors.New("incorrect type conversion")
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}
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return nil
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}
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// Verify checks a signature where all messages are known to the verifier
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func (pk PublicKey) Verify(signature *Signature, generators *MessageGenerators, msgs []curves.Scalar) error {
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if generators.length < len(msgs) {
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return fmt.Errorf("not enough message generators")
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}
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if len(msgs) < 1 {
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return fmt.Errorf("invalid messages")
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}
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// Identity Point will always return true which is not what we want
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if pk.value.IsIdentity() {
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return fmt.Errorf("invalid public key")
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}
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if signature.a.IsIdentity() {
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return fmt.Errorf("invalid signature")
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}
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a, ok := pk.value.Generator().Mul(signature.e).Add(pk.value).(curves.PairingPoint)
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if !ok {
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return fmt.Errorf("not a valid point")
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}
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b, ok := computeB(signature.s, msgs, generators).Neg().(curves.PairingPoint)
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if !ok {
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return fmt.Errorf("not a valid point")
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}
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res := a.MultiPairing(signature.a, a, b, pk.value.Generator().(curves.PairingPoint))
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if !res.IsOne() {
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return fmt.Errorf("invalid result")
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}
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return nil
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}
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