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load_key.go
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/
load_key.go
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package node
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"github.com/AutoRoute/node/internal"
)
type Key struct {
k internal.PrivateKey
}
func (k Key) String() string {
return fmt.Sprintf("Key{%v}", k.k.PublicKey().Hash())
}
func NewKey() (Key, error) {
key, err := internal.NewECDSAKey()
return Key{key}, err
}
// Creates a new keyfile
// Args:
// keyfile: name of the keyfile
// Returns:
// file, pirvate key, error
func CreateKey(keyfile string) (*os.File, internal.PrivateKey, error) {
key, err := NewKey()
if err != nil {
return nil, key.k, err
}
b, err := json.Marshal(key.k)
if err != nil {
return nil, key.k, err
}
f, err := os.Create(keyfile)
if err != nil {
return f, key.k, err
}
_, err = f.Write(b)
if err != nil {
return f, key.k, err
}
_, err = f.Seek(0, 0)
if err != nil {
return f, key.k, err
}
return f, key.k, nil
}
// Loads a key from a keyfile
// Args:
// keyfile: name of the keyfile
// Returns:
// private key (type Key)
func LoadKey(keyfile string) (Key, error) {
var key internal.PrivateKey
f, err := os.Open(keyfile)
if err != nil {
if !os.IsNotExist(err) {
return Key{key}, err
}
f, key, err = CreateKey(keyfile)
if err != nil {
return Key{key}, err
}
}
b, err := ioutil.ReadAll(f)
if err != nil {
return Key{key}, err
}
err = json.Unmarshal(b, &key)
return Key{key}, err
}