diff --git a/DIRECTORY.md b/DIRECTORY.md
index 66683cfcd..81cbd04a8 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -16,8 +16,11 @@
 ## Ciphers
   * [Base64 Encoding](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/base64_encoding.cpp)
   * [Caesar Cipher](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/caesar_cipher.cpp)
+  * [Elliptic Curve Key Exchange](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/elliptic_curve_key_exchange.cpp)
   * [Hill Cipher](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/hill_cipher.cpp)
   * [Morse Code](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/morse_code.cpp)
+  * [Uint128 T](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/uint128_t.hpp)
+  * [Uint256 T](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/uint256_t.hpp)
   * [Vigenere Cipher](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/vigenere_cipher.cpp)
   * [Xor Cipher](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/xor_cipher.cpp)