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-rw-r--r--crypto/crypto.go5
-rw-r--r--crypto/key.go18
2 files changed, 16 insertions, 7 deletions
diff --git a/crypto/crypto.go b/crypto/crypto.go
index c3d47b629..2d26dd25e 100644
--- a/crypto/crypto.go
+++ b/crypto/crypto.go
@@ -139,6 +139,11 @@ func LoadECDSA(file string) (*ecdsa.PrivateKey, error) {
return ToECDSA(buf), nil
}
+// SaveECDSA saves a secp256k1 private key from the given file.
+func SaveECDSA(file string, key *ecdsa.PrivateKey) error {
+ return common.WriteFile(file, FromECDSA(key))
+}
+
func GenerateKey() (*ecdsa.PrivateKey, error) {
return ecdsa.GenerateKey(S256(), rand.Reader)
}
diff --git a/crypto/key.go b/crypto/key.go
index 9dbf37467..0b84bfec1 100644
--- a/crypto/key.go
+++ b/crypto/key.go
@@ -85,6 +85,16 @@ func (k *Key) UnmarshalJSON(j []byte) (err error) {
return err
}
+func NewKeyFromECDSA(privateKeyECDSA *ecdsa.PrivateKey) *Key {
+ id := uuid.NewRandom()
+ key := &Key{
+ Id: id,
+ Address: PubkeyToAddress(privateKeyECDSA.PublicKey),
+ PrivateKey: privateKeyECDSA,
+ }
+ return key
+}
+
func NewKey(rand io.Reader) *Key {
randBytes := make([]byte, 64)
_, err := rand.Read(randBytes)
@@ -97,11 +107,5 @@ func NewKey(rand io.Reader) *Key {
panic("key generation: ecdsa.GenerateKey failed: " + err.Error())
}
- id := uuid.NewRandom()
- key := &Key{
- Id: id,
- Address: PubkeyToAddress(privateKeyECDSA.PublicKey),
- PrivateKey: privateKeyECDSA,
- }
- return key
+ return NewKeyFromECDSA(privateKeyECDSA)
}