basic common app packages

crypto/random.go

@@ -0,0 +1,24 @@
+// Copyright 2024 Patial Tech (Ankit Patial).
+// All rights reserved.
+
+package crypto
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+)
+
+// RandomBytes generates totally random bytes, each byte is generated by [0,255] range
+func RandomBytes(length uint8) ([]byte, error) {
+	buf := make([]byte, length)
+	_, err := rand.Read(buf)
+	return buf, err
+}
+
+func RandomBytesHex(length uint8) (string, error) {
+	if b, err := RandomBytes(length); err != nil {
+		return "", err
+	} else {
+		return hex.EncodeToString(b), nil
+	}
+}