generate sign/verify keypair

1 files changed, 47 insertions, 0 deletions

diff --git a/key/siggen.go b/key/siggen.go
new file mode 100644
index 0000000..84d26fb
--- /dev/null
+++ b/key/siggen.go
@@ -0,0 +1,47 @@
+package key
+
+import (
+	crypto_rand "crypto/rand"
+	"encoding/hex"
+	"golang.org/x/crypto/nacl/sign"
+
+	"git.samanthony.xyz/hose/util"
+)
+
+func generateSigKeypair() error {
+	util.Logf("generating new sign/verify keypair...")
+
+	// Create public key file.
+	pubFile, err := createFileIfNotExist(sigPubKeyFile, pubFileMode)
+	if err != nil {
+		return err
+	}
+	defer pubFile.Close()
+
+	// Create private key file.
+	privFile, err := createFileIfNotExist(sigPrivKeyFile, privFileMode)
+	if err != nil {
+		return err
+	}
+	defer privFile.Close()
+
+	// Generate keypair.
+	pubkey, privkey, err := sign.GenerateKey(crypto_rand.Reader)
+	if err != nil {
+		return err
+	}
+
+	// Write keypair to files.
+	buf := make([]byte, hex.EncodedLen(len(*pubkey)))
+	hex.Encode(buf, (*pubkey)[:])
+	if _, err := pubFile.Write(buf); err != nil {
+		return err
+	}
+	buf = make([]byte, hex.EncodedLen(len(*privkey)))
+	hex.Encode(buf, (*privkey)[:])
+	if _, err := privFile.Write(buf); err != nil {
+		return err
+	}
+
+	return nil
+}