lotus/cmd/lotus-keygen/main.go

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package main
import (
"encoding/json"
"fmt"
"os"
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"github.com/filecoin-project/go-state-types/crypto"
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"github.com/filecoin-project/lotus/chain/wallet"
_ "github.com/filecoin-project/lotus/lib/sigs/bls"
_ "github.com/filecoin-project/lotus/lib/sigs/secp"
"github.com/urfave/cli/v2"
)
func main() {
app := cli.NewApp()
app.Flags = []cli.Flag{
&cli.StringFlag{
Name: "type",
Aliases: []string{"t"},
Value: "bls",
Usage: "specify key type to generate (bls or secp256k1)",
},
}
app.Action = func(cctx *cli.Context) error {
memks := wallet.NewMemKeyStore()
w, err := wallet.NewWallet(memks)
if err != nil {
return err
}
var kt crypto.SigType
switch cctx.String("type") {
case "bls":
kt = crypto.SigTypeBLS
case "secp256k1":
kt = crypto.SigTypeSecp256k1
default:
return fmt.Errorf("unrecognized key type: %q", cctx.String("type"))
}
kaddr, err := w.GenerateKey(kt)
if err != nil {
return err
}
ki, err := w.Export(kaddr)
if err != nil {
return err
}
fi, err := os.Create(fmt.Sprintf("%s.key", kaddr))
if err != nil {
return err
}
defer func() {
err2 := fi.Close()
if err == nil {
err = err2
}
}()
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b, err := json.Marshal(ki)
if err != nil {
return err
}
if _, err := fi.Write(b); err != nil {
return fmt.Errorf("failed to write key info to file: %w", err)
}
fmt.Println("Generated new key: ", kaddr)
return nil
}
if err := app.Run(os.Args); err != nil {
fmt.Println(err)
os.Exit(1)
}
}