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authorWei-Ning Huang <w@dexon.org>2019-03-09 00:09:59 +0800
committerWei-Ning Huang <w@byzantine-lab.io>2019-06-12 17:27:22 +0800
commit0c08596452f6f7d88af39a4f635b5fda6475021a (patch)
tree370f2ff472592243f6acf56a926db2b560e41f24 /cmd
parenta6acc747e603a2f449af075a007a34fc494631e0 (diff)
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cmd: nodekey: add command to generate and inspect nodekey (#233)
Diffstat (limited to 'cmd')
-rw-r--r--cmd/nodekey/main.go93
1 files changed, 93 insertions, 0 deletions
diff --git a/cmd/nodekey/main.go b/cmd/nodekey/main.go
new file mode 100644
index 000000000..1ba417704
--- /dev/null
+++ b/cmd/nodekey/main.go
@@ -0,0 +1,93 @@
+package main
+
+import (
+ "encoding/hex"
+ "fmt"
+ "os"
+
+ "github.com/dexon-foundation/dexon/cmd/utils"
+ "github.com/dexon-foundation/dexon/crypto"
+
+ "gopkg.in/urfave/cli.v1"
+)
+
+const (
+ defaultKeyfileName = "node.key"
+)
+
+// Git SHA1 commit hash of the release (set via linker flags)
+var gitCommit = ""
+
+var app *cli.App
+
+func init() {
+ app = utils.NewApp(gitCommit, "DEXON node key manager")
+ app.Commands = []cli.Command{
+ commandGenerate,
+ commandInspect,
+ }
+}
+
+var commandGenerate = cli.Command{
+ Name: "generate",
+ Usage: "generate new keyfile",
+ ArgsUsage: "[ <keyfile> ]",
+ Description: `Generate a new node key.`,
+ Action: func(ctx *cli.Context) error {
+ // Check if keyfile path given and make sure it doesn't already exist.
+ keyfilepath := ctx.Args().First()
+ if keyfilepath == "" {
+ keyfilepath = defaultKeyfileName
+ }
+ if _, err := os.Stat(keyfilepath); err == nil {
+ utils.Fatalf("Keyfile already exists at %s.", keyfilepath)
+ } else if !os.IsNotExist(err) {
+ utils.Fatalf("Error checking if keyfile exists: %v", err)
+ }
+
+ privKey, err := crypto.GenerateKey()
+ if err != nil {
+ utils.Fatalf("Failed to generate random private key: %v", err)
+ }
+
+ address := crypto.PubkeyToAddress(privKey.PublicKey)
+ err = crypto.SaveECDSA(keyfilepath, privKey)
+ if err != nil {
+ utils.Fatalf("Failed to save keyfile: %v", err)
+ }
+
+ fmt.Printf("Node Address: %s\n", address.String())
+ fmt.Printf("Public Key: 0x%s\n",
+ hex.EncodeToString(crypto.FromECDSAPub(&privKey.PublicKey)))
+ return nil
+ },
+}
+
+var commandInspect = cli.Command{
+ Name: "inspect",
+ Usage: "inspect a keyfile",
+ ArgsUsage: "[ <keyfile> ]",
+ Description: `Generate a new node key.`,
+ Action: func(ctx *cli.Context) error {
+ keyfilepath := ctx.Args().First()
+
+ privKey, err := crypto.LoadECDSA(keyfilepath)
+ if err != nil {
+ utils.Fatalf("Failed to read key file: %v", err)
+ }
+
+ address := crypto.PubkeyToAddress(privKey.PublicKey)
+
+ fmt.Printf("Node Address: %s\n", address.String())
+ fmt.Printf("Public Key: 0x%s\n",
+ hex.EncodeToString(crypto.FromECDSAPub(&privKey.PublicKey)))
+ return nil
+ },
+}
+
+func main() {
+ if err := app.Run(os.Args); err != nil {
+ fmt.Fprintln(os.Stderr, err)
+ os.Exit(1)
+ }
+}