1 files changed, 32 insertions, 0 deletions
diff --git a/internal/player/password.go b/internal/player/password.go
new file mode 100644
index 0000000..17e4218
--- /dev/null
+++ b/internal/player/password.go
@@ -0,0 +1,32 @@
+package player
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"fmt"
+	"strings"
+)
+
+func HashPassword(password string) (string, error) {
+	salt := make([]byte, 16)
+	if _, err := rand.Read(salt); err != nil {
+		return "", err
+	}
+	hash := sha256.Sum256(append(salt, []byte(password)...))
+	return fmt.Sprintf("sha256:%s:%x", base64.RawStdEncoding.EncodeToString(salt), hash), nil
+}
+
+func CheckPassword(password, stored string) bool {
+	parts := strings.SplitN(stored, ":", 3)
+	if len(parts) != 3 || parts[0] != "sha256" {
+		return false
+	}
+	salt, err := base64.RawStdEncoding.DecodeString(parts[1])
+	if err != nil {
+		return false
+	}
+	hash := sha256.Sum256(append(salt, []byte(password)...))
+	expected := fmt.Sprintf("%x", hash)
+	return parts[2] == expected
+}