sonr/crypto/sharing/polynomial.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

36 lines
752 B
Go
Executable File

//
// Copyright Coinbase, Inc. All Rights Reserved.
//
// SPDX-License-Identifier: Apache-2.0
//
package sharing
import (
"io"
"github.com/onsonr/sonr/crypto/core/curves"
)
type Polynomial struct {
Coefficients []curves.Scalar
}
func (p *Polynomial) Init(intercept curves.Scalar, degree uint32, reader io.Reader) *Polynomial {
p.Coefficients = make([]curves.Scalar, degree)
p.Coefficients[0] = intercept.Clone()
for i := 1; i < int(degree); i++ {
p.Coefficients[i] = intercept.Random(reader)
}
return p
}
func (p Polynomial) Evaluate(x curves.Scalar) curves.Scalar {
degree := len(p.Coefficients) - 1
out := p.Coefficients[degree].Clone()
for i := degree - 1; i >= 0; i-- {
out = out.Mul(x).Add(p.Coefficients[i])
}
return out
}