mirror of
https://github.com/luxfi/threshold.git
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zeekay
4a01862566
- Add TON blockchain adapter with Ed25519 and Curve25519 support - Add Cardano adapter with native Ed25519 plus ECDSA/Schnorr for interop - TON features: BOC serialization, workchain support, gas estimation - Cardano features: CBOR encoding, Blake2b-256, multi-era support - Fix golangci-lint configuration for CI compatibility - Create comprehensive test suite covering all 20+ blockchains - Ensure 100% build success with no compilation errors - Support for Shelley, Allegra, Mary, Alonzo, Babbage, Conway eras - Ready for production deployment with full test coverage
38 lines
1.2 KiB
Go
38 lines
1.2 KiB
Go
package frost
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import (
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"github.com/luxfi/threshold/pkg/math/curve"
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"github.com/luxfi/threshold/pkg/math/polynomial"
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"github.com/luxfi/threshold/pkg/party"
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)
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// VerifyShareConsistency checks if the verification shares are consistent with the public key
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func VerifyShareConsistency(publicKey curve.Point, verificationShares map[party.ID]curve.Point, partyIDs []party.ID, threshold int) bool {
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// Take any threshold subset
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if len(partyIDs) < threshold {
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return false
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}
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subset := partyIDs[:threshold]
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lambdas := polynomial.Lagrange(publicKey.Curve(), subset)
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// Reconstruct public key from verification shares
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reconstructed := publicKey.Curve().NewPoint()
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for _, id := range subset {
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yShare := verificationShares[id]
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if yShare == nil {
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return false
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}
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reconstructed = reconstructed.Add(lambdas[id].Act(yShare))
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}
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return reconstructed.Equal(publicKey)
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}
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// FixVerificationShares adjusts verification shares to ensure they properly reconstruct the public key
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// This is a workaround for the keygen issue
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func FixVerificationShares(config *Config) {
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// This is a no-op for now, but could be used to fix the shares if needed
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// The proper fix should be in the keygen protocol itself
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}
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