Cryptography Library in C

This project leverages the OpenSSL library to implement cryptographic algorithms in C. It currently supports the following algorithms:

Hashing: SHA-256 (Secure Hash Algorithm)
Symmetric Encryption: AES (Advanced Encryption Standard)

This library is designed for educational purposes and as a foundation for building more complex cryptographic applications.

Features

SHA-256 Hashing: Generate a fixed-size 256-bit (32-byte) hash from an input string.
AES Encryption/Decryption: Encrypt and decrypt data using the AES-128 algorithm in ECB mode.

Dependencies

This project requires the OpenSSL library to be installed on your system.

Installation Instructions

Debian/Ubuntu:
```
sudo apt install libssl-dev
```
Arch Linux:
```
sudo pacman -S libssl-dev
```
Mac OS:
```
brew install openssl
```

Manual Compilation

For compilation, you can use the following commands:

SHA-256 Hashing

gcc -o test_hash tests/test_hash.c src/crypto_hash.c -lssl -lcrypto
./test_hash

gcc -o test_aes tests/test_aes.c src/crypto_aes.c -lssl -lcrypto
./test_aes

Michaelin007/n-cryptography

README