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// Package main outputs the private and public parts of a new namespace
package main
import (
"flag"
"fmt"
"crypto/ed25519"
"crypto/rand"
"encoding/base64"
"github.com/golang/glog"
"github.com/system-transparency/stfe/types"
)
var (
format = flag.String("format", string(types.NamespaceFormatEd25519V1), "namespace format")
)
func main() {
flag.Parse()
defer glog.Flush()
switch *format {
case string(types.NamespaceFormatEd25519V1):
glog.Infof("generating new ed25519_v1 namespace")
sk, vk, namespace, err := genEd25519V1Namespace()
if err != nil {
glog.Errorf("genEd25519V1Namespace: %v", err)
break
}
fmt.Printf("sk: %s\n", base64.StdEncoding.EncodeToString(sk))
fmt.Printf("vk: %s\n", base64.StdEncoding.EncodeToString(vk))
fmt.Printf("ed25519_v1: %s\n", base64.StdEncoding.EncodeToString(namespace))
default:
glog.Errorf("unsupported namespace format: %s", format)
}
}
// genEd25519V1Namespace generates an Ed25519 secret key, verification key, and
// serialized ed25519_v1 namespace.
func genEd25519V1Namespace() ([]byte, []byte, []byte, error) {
vk, sk, err := ed25519.GenerateKey(rand.Reader)
if err != nil {
return nil, nil, nil, fmt.Errorf("ed25519.GenerateKey: %v", err)
}
namespace, err := types.NewNamespaceEd25519V1(vk[:])
if err != nil {
return nil, nil, nil, fmt.Errorf("types.NewNamespaceEd25519V1: %v", err)
}
serialized, err := types.Marshal(*namespace)
if err != nil {
fmt.Errorf("types.Marshal: %v", err)
}
return sk, vk, serialized, nil
}
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