From 1534b800c2a1d7479ad9a879423364ef7c09b5c3 Mon Sep 17 00:00:00 2001
From: Yan <yans@yancomm.net>
Date: Thu, 26 Sep 2024 14:20:51 -0700
Subject: [PATCH] start

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 cryptography/xor/DESCRIPTION.md | 4 ++++
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+Strangely enough, we'll start our crypto journey with the humble [Exclusive Or](https://en.wikipedia.org/wiki/Exclusive_or) (XOR) operator.
+An XOR is one of the most common [bitwise operators](https://en.wikipedia.org/wiki/Logical_connective) that you will encounter in your security journey.
+Others, of course, are And, Or, and Not.
+With any three of these,