WIP

privacy/privacy.go

@@ -0,0 +1,35 @@
+package privacy
+
+import (
+	"crypto/rand"
+	"errors"
+	"golang.org/x/crypto/argon2"
+	"golang.org/x/term"
+	"os"
+)
+
+func GenerateKey(password string) ([]byte, error) {
+	salt := make([]byte, 16)
+	_, err := rand.Read(salt[1:])
+	if err != nil {
+		return nil, err
+	}
+
+	key := argon2.IDKey([]byte(password), salt, 1, 16*1024, 4, 32)
+
+	return key, nil
+}
+
+func ReadPasswordFromTerminal() (string, error) {
+	var inputFd int = int(os.Stdin.Fd())
+	if !term.IsTerminal(inputFd) {
+		return "", errors.New("not a terminal")
+	}
+
+	passwd, err := term.ReadPassword(inputFd)
+	if err != nil {
+		return "", err
+	}
+
+	return string(passwd), nil
+}