AES-128

C++ implementation of 128-bit AES encryption and decryption for CIS4362 - Applied Cryptography at Florida Poly in Spring of 2021.

Setup

1. Compile with g++ -c main.cpp src/aes_128_common.cpp src/aes_128_encrypt.cpp src/aes_128_decrypt.cpp src/aes_128_key_expansion.cpp encryption_driver.cpp decryption_driver.cpp key_expansion_driver.cpp
2. Make main executable with g++ -o aes.o main.o aes_128_common.o aes_128_encrypt.o aes_128_decrypt.o aes_128_key_expansion.o
3. Make encryption driver executable with g++ -o encryption_test aes_128_common.o aes_128_encrypt.o aes_128_decrypt.o aes_128_key_expansion.o encryption_driver.o
4. Make decryption driver executable with g++ -o decryption_test aes_128_common.o aes_128_encrypt.o aes_128_decrypt.o aes_128_key_expansion.o decryption_driver.o
5. Make key expansion driver executable with g++ -o key_expansion_test aes_128_common.o aes_128_encrypt.o aes_128_decrypt.o aes_128_key_expansion.o key_expansion_driver.o

Usage

• Run a test case that shows encryption and decryption with ./aes.o
• Run the encryption test driver with ./encryption_test
• Run the decryption test driver with ./decryption_test
• Run the key expansion test driver with ./key_expansion_test

Screenshots

Output of encryption test:

Output of decryption test:

Output of key expansion test: