diff --git a/README.md b/README.md
index 95a0d31a93..f34c1caa7c 100644
--- a/README.md
+++ b/README.md
@@ -162,6 +162,15 @@ For a complete CS self-taught program, the resources for my study plan have been
     - [Information theory](#information-theory-videos)
     - [Parity & Hamming Code](#parity--hamming-code-videos)
     - [Entropy](#entropy)
+    - [0xFF_UNCALCULATED_PATCH](https://github.com/ayauho/0xFF_Cipher)
+        - 0x23  0x20  0xFF  0x2A  0xFF  0x2A  0x54  0xFF  0x48  0x45  0xFF  0x5F  0x42  0x4F  0x4F  0xFF
+        - 0x4B  0x3A  0xFF  0x20  0x44  0x69  0x73  0xFF  0x74  0x69  0xFF  0x6C  0x6C  0x65  0x64  0xFF
+        - 0x20  0x54  0x72  0x61  0x6E  0x73  0xFF  0x6D  0x69  0xFF  0x73  0x73  0x69  0x6F  0x6E  0x2A
+        - 0xFF  0x2A  0x0A  0x0A  0x23  0xFF  0x23  0x20  0xFF  0x2A  0x2A  0x50  0x41  0xFF  0x52  0x54
+        - 0x20  0x49  0x3A  0x20  0xFF  0x54  0x48  0x45  0x20  0x4F  0x42  0xFF  0x53  0x45  0xFF  0x52
+        - 0x56  0x45  0x52  0x20  0x4C  0xFF  0x4F  0x47  0x53  0x20  0xFF  0x28  0x44  0xFF  0x69  0x73
+        - 0x74  0x69  0x6C  0x6C  0xFF  0x65  0x64  0x20  0x52  0xFF  0x65  0x76  0x69  0x65  0x77  0x73
+        - 0xFF  0x29  0x2A  0x2A  0x0A  0x0A  0xFF  0x5B  0x54  0x52  0x55  0x4E  0x43  0x41  0x54  0x45  0x44  0x5D
     - [Cryptography](#cryptography)
     - [Compression](#compression)
     - [Computer Security](#computer-security)