forked from cerc-io/plugeth
eeb53bc143
ethkey is a new tool that serves as a command line interface to the basic key management functionalities of geth. It currently supports: - generating keyfiles - inspecting keyfiles (print public and private key) - signing messages - verifying signed messages
75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
package main
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import (
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"encoding/hex"
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"fmt"
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"io/ioutil"
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"github.com/ethereum/go-ethereum/accounts/keystore"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/crypto"
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"gopkg.in/urfave/cli.v1"
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)
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type outputInspect struct {
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Address string
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PublicKey string
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PrivateKey string
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}
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var commandInspect = cli.Command{
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Name: "inspect",
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Usage: "inspect a keyfile",
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ArgsUsage: "<keyfile>",
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Description: `
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Print various information about the keyfile.
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Private key information can be printed by using the --private flag;
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make sure to use this feature with great caution!`,
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Flags: []cli.Flag{
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passphraseFlag,
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jsonFlag,
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cli.BoolFlag{
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Name: "private",
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Usage: "include the private key in the output",
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},
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},
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Action: func(ctx *cli.Context) error {
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keyfilepath := ctx.Args().First()
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// Read key from file.
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keyjson, err := ioutil.ReadFile(keyfilepath)
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if err != nil {
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utils.Fatalf("Failed to read the keyfile at '%s': %v", keyfilepath, err)
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}
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// Decrypt key with passphrase.
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passphrase := getPassPhrase(ctx, false)
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key, err := keystore.DecryptKey(keyjson, passphrase)
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if err != nil {
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utils.Fatalf("Error decrypting key: %v", err)
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}
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// Output all relevant information we can retrieve.
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showPrivate := ctx.Bool("private")
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out := outputInspect{
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Address: key.Address.Hex(),
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PublicKey: hex.EncodeToString(
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crypto.FromECDSAPub(&key.PrivateKey.PublicKey)),
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}
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if showPrivate {
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out.PrivateKey = hex.EncodeToString(crypto.FromECDSA(key.PrivateKey))
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}
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if ctx.Bool(jsonFlag.Name) {
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mustPrintJSON(out)
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} else {
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fmt.Println("Address: ", out.Address)
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fmt.Println("Public key: ", out.PublicKey)
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if showPrivate {
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fmt.Println("Private key: ", out.PrivateKey)
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}
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}
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return nil
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},
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}
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