mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-15 04:35:17 +00:00
133 lines
3.2 KiB
Go
133 lines
3.2 KiB
Go
//
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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 v1
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import (
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"math/big"
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"testing"
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"github.com/btcsuite/btcd/btcec"
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"github.com/stretchr/testify/require"
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)
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func TestK256FeldmanSplitInvalidArgs(t *testing.T) {
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_, err := NewFeldman(0, 0, btcec.S256())
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require.NotNil(t, err)
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_, err = NewFeldman(3, 2, btcec.S256())
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require.NotNil(t, err)
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_, err = NewFeldman(1, 10, btcec.S256())
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require.NotNil(t, err)
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scheme, err := NewFeldman(2, 3, btcec.S256())
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require.Nil(t, err)
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require.NotNil(t, scheme)
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_, _, err = scheme.Split([]byte{})
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require.NotNil(t, err)
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_, _, err = scheme.Split([]byte{0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65})
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require.NotNil(t, err)
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}
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func TestK256FeldmanCombineNoShares(t *testing.T) {
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scheme, err := NewFeldman(2, 3, btcec.S256())
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require.Nil(t, err)
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require.NotNil(t, scheme)
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_, err = scheme.Combine()
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require.NotNil(t, err)
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}
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func TestK256FeldmanCombineDuplicateShare(t *testing.T) {
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scheme, err := NewFeldman(2, 3, btcec.S256())
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require.Nil(t, err)
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require.NotNil(t, scheme)
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_, err = scheme.Combine([]*ShamirShare{
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{
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Identifier: 1,
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Value: field.NewElement(big.NewInt(3)),
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},
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{
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Identifier: 1,
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Value: field.NewElement(big.NewInt(3)),
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},
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}...)
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require.NotNil(t, err)
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}
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func TestK256FeldmanCombineBadIdentifier(t *testing.T) {
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scheme, err := NewFeldman(2, 3, btcec.S256())
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require.Nil(t, err)
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require.NotNil(t, scheme)
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shares := []*ShamirShare{
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{
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Identifier: 0,
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Value: field.NewElement(big.NewInt(3)),
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},
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{
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Identifier: 2,
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Value: field.NewElement(big.NewInt(3)),
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},
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}
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_, err = scheme.Combine(shares...)
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require.NotNil(t, err)
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shares[0] = &ShamirShare{
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Identifier: 4,
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Value: field.NewElement(big.NewInt(3)),
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}
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_, err = scheme.Combine(shares...)
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require.NotNil(t, err)
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}
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func TestK256FeldmanCombineSingle(t *testing.T) {
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scheme, err := NewFeldman(2, 3, btcec.S256())
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require.Nil(t, err)
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require.NotNil(t, scheme)
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verifiers, shares, err := scheme.Split([]byte("test"))
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require.Nil(t, err)
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require.NotNil(t, shares)
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for _, s := range shares {
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ok, err := scheme.Verify(s, verifiers)
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require.Nil(t, err)
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require.True(t, ok)
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}
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secret, err := scheme.Combine(shares...)
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require.Nil(t, err)
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require.Equal(t, secret, []byte("test"))
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}
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func TestK256FeldmanAllCombinations(t *testing.T) {
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scheme, err := NewFeldman(3, 5, btcec.S256())
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require.Nil(t, err)
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require.NotNil(t, scheme)
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secret := []byte("test")
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verifiers, shares, err := scheme.Split(secret)
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for _, s := range shares {
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ok, err := scheme.Verify(s, verifiers)
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require.Nil(t, err)
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require.True(t, ok)
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}
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require.Nil(t, err)
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require.NotNil(t, shares)
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// There are 5*4*3 possible combinations
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for i := 0; i < 5; i++ {
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for j := 0; j < 5; j++ {
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if i == j {
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continue
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}
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for k := 0; k < 5; k++ {
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if i == k || j == k {
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continue
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}
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rSecret, err := scheme.Combine(shares[i], shares[j], shares[k])
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require.Nil(t, err)
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require.NotNil(t, rSecret)
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require.Equal(t, rSecret, secret)
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}
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}
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}
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}
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