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// Copyright (C) 2019-2022 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 main
import (
"encoding/base64"
"fmt"
"math"
"os"
"github.com/spf13/cobra"
"github.com/algorand/go-algorand/data/account"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/util"
"github.com/algorand/go-algorand/util/db"
)
var partKeyfile string
var partFirstRound uint64
var partLastRound uint64
var partKeyDilution uint64
var partParent string
var partCmd = &cobra.Command{
Use: "part",
Short: "Manage participation keys",
Args: cobra.NoArgs,
Run: func(cmd *cobra.Command, args []string) {
// If no arguments passed, we should fallback to help
cmd.HelpFunc()(cmd, args)
},
}
var partGenerateCmd = &cobra.Command{
Use: "generate",
Short: "Generate participation key",
Args: cobra.NoArgs,
Run: func(cmd *cobra.Command, _ []string) {
if partLastRound < partFirstRound {
fmt.Fprintf(os.Stderr, "Last round %d < first round %d\n", partLastRound, partFirstRound)
os.Exit(1)
}
if partKeyDilution == 0 {
partKeyDilution = 1 + uint64(math.Sqrt(float64(partLastRound-partFirstRound)))
}
var err error
var parent basics.Address
if partParent != "" {
parent, err = basics.UnmarshalChecksumAddress(partParent)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot parse parent address %s: %v\n", partParent, err)
os.Exit(1)
}
}
partdb, err := db.MakeErasableAccessor(partKeyfile)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot open partkey database %s: %v\n", partKeyfile, err)
os.Exit(1)
}
fmt.Println("Please stand by while generating keys. This might take a few minutes...")
var partkey account.PersistedParticipation
participationGen := func() {
partkey, err = account.FillDBWithParticipationKeys(partdb, parent, basics.Round(partFirstRound), basics.Round(partLastRound), partKeyDilution)
}
util.RunFuncWithSpinningCursor(participationGen)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot generate partkey database %s: %v\n", partKeyfile, err)
err = os.Remove(partKeyfile)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to cleanup the database file %s: %v\n", partKeyfile, err)
}
os.Exit(1)
}
fmt.Println("Participation key generation successful")
printPartkey(partkey.Participation)
},
}
var partInfoCmd = &cobra.Command{
Use: "info",
Short: "Print participation key information",
Args: cobra.NoArgs,
Run: func(cmd *cobra.Command, _ []string) {
partdb, err := db.MakeErasableAccessor(partKeyfile)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot open partkey database %s: %v\n", partKeyfile, err)
os.Exit(1)
}
partkey, err := account.RestoreParticipation(partdb)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot load partkey database %s: %v\n", partKeyfile, err)
os.Exit(1)
}
partkey.Close()
printPartkey(partkey.Participation)
},
}
var partReparentCmd = &cobra.Command{
Use: "reparent",
Short: "Change parent address of participation key",
Args: cobra.NoArgs,
Run: func(cmd *cobra.Command, _ []string) {
parent, err := basics.UnmarshalChecksumAddress(partParent)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot parse parent address %s: %v\n", partParent, err)
os.Exit(1)
}
partdb, err := db.MakeErasableAccessor(partKeyfile)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot open partkey database %s: %v\n", partKeyfile, err)
os.Exit(1)
}
partkey, err := account.RestoreParticipation(partdb)
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot load partkey database %s: %v\n", partKeyfile, err)
os.Exit(1)
}
defer partkey.Close()
partkey.Parent = parent
err = partkey.PersistNewParent()
if err != nil {
fmt.Fprintf(os.Stderr, "Cannot persist partkey database %s: %v\n", partKeyfile, err)
os.Exit(1)
}
printPartkey(partkey.Participation)
},
}
func printPartkey(partkey account.Participation) {
fmt.Printf("Parent address: %s\n", partkey.Parent.String())
fmt.Printf("VRF public key: %s\n", base64.StdEncoding.EncodeToString(partkey.VRF.PK[:]))
fmt.Printf("Voting public key: %s\n", base64.StdEncoding.EncodeToString(partkey.Voting.OneTimeSignatureVerifier[:]))
if partkey.StateProofSecrets != nil && !partkey.StateProofSecrets.GetVerifier().IsEmpty() {
fmt.Printf("State proof key: %s\n", base64.StdEncoding.EncodeToString(partkey.StateProofSecrets.GetVerifier()[:]))
}
fmt.Printf("First round: %d\n", partkey.FirstValid)
fmt.Printf("Last round: %d\n", partkey.LastValid)
fmt.Printf("Key dilution: %d\n", partkey.KeyDilution)
fmt.Printf("First batch: %d\n", partkey.Voting.FirstBatch)
fmt.Printf("First offset: %d\n", partkey.Voting.FirstOffset)
}
func init() {
partCmd.AddCommand(partGenerateCmd)
partCmd.AddCommand(partInfoCmd)
partCmd.AddCommand(partReparentCmd)
partGenerateCmd.Flags().StringVar(&partKeyfile, "keyfile", "", "Participation key filename")
partGenerateCmd.Flags().Uint64Var(&partFirstRound, "first", 0, "First round for participation key")
partGenerateCmd.Flags().Uint64Var(&partLastRound, "last", 0, "Last round for participation key")
partGenerateCmd.Flags().Uint64Var(&partKeyDilution, "dilution", 0, "Key dilution (default to sqrt of validity window)")
partGenerateCmd.Flags().StringVar(&partParent, "parent", "", "Address of parent account")
partGenerateCmd.MarkFlagRequired("first")
partGenerateCmd.MarkFlagRequired("last")
partGenerateCmd.MarkFlagRequired("keyfile")
partInfoCmd.Flags().StringVar(&partKeyfile, "keyfile", "", "Participation key filename")
partInfoCmd.MarkFlagRequired("keyfile")
partReparentCmd.Flags().StringVar(&partKeyfile, "keyfile", "", "Participation key filename")
partReparentCmd.Flags().StringVar(&partParent, "parent", "", "Address of parent account")
partReparentCmd.MarkFlagRequired("keyfile")
partReparentCmd.MarkFlagRequired("parent")
}
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