key encoding function

2 files changed, 11 insertions, 5 deletions

diff --git a/key/encoding.go b/key/encoding.go
new file mode 100644
index 0000000..11abdd6
--- /dev/null
+++ b/key/encoding.go
@@ -0,0 +1,9 @@
+package key
+
+import "encoding/hex"
+
+func encode(key []byte) []byte {
+	buf := make([]byte, hex.EncodedLen(len(key)))
+	hex.Encode(buf, key)
+	return buf
+}
diff --git a/key/generate.go b/key/generate.go
index d7480c9..d4572ee 100644
--- a/key/generate.go
+++ b/key/generate.go
@@ -2,7 +2,6 @@ package key
 
 import (
 	crypto_rand "crypto/rand"
-	"encoding/hex"
 	"fmt"
 	"golang.org/x/crypto/nacl/box"
 	"golang.org/x/crypto/nacl/sign"
@@ -39,13 +38,11 @@ func generateKeypair(generate keyGenerator, pubFileName, privFileName string) er
 	}
 
 	// Write keypair to files.
-	buf := make([]byte, hex.EncodedLen(len(pubkey)))
-	hex.Encode(buf, pubkey)
+	buf := encode(pubkey)
 	if _, err := pubFile.Write(buf); err != nil {
 		return err
 	}
-	buf = make([]byte, hex.EncodedLen(len(privkey)))
-	hex.Encode(buf, privkey)
+	buf = encode(privkey)
 	if _, err := privFile.Write(buf); err != nil {
 		return err
 	}