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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package committee
import (
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/protocol"
)
// A Selector deterministically defines a cryptographic sortition committee. It
// contains both the input to the sortition VRF and the size of the sortition
// committee.
type Selector interface {
// The hash of a struct which implements Selector is used as the input
// to the VRF.
crypto.Hashable
// CommitteeSize returns the size of the committee determined by this
// Selector.
CommitteeSize(config.ConsensusParams) uint64
}
// BalanceRecord pairs an account's address with its associated data.
//
// This struct is used to decouple LedgerReader.AccountData from basics.BalanceRecord.
//
//msgp:ignore BalanceRecord
type BalanceRecord struct {
basics.OnlineAccountData
Addr basics.Address
}
// Membership encodes the parameters used to verify membership in a committee.
type Membership struct {
Record BalanceRecord
Selector Selector
TotalMoney basics.MicroAlgos
}
// A Seed contains cryptographic entropy which can be used to determine a
// committee.
type Seed [32]byte
// ToBeHashed implements the crypto.Hashable interface
func (s Seed) ToBeHashed() (protocol.HashID, []byte) {
return protocol.Seed, s[:]
}
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