Linux tool to encrypt and decrypt files using AES-256-CFB algo.
- Guesses needed action with file (encrypt/decrypt).
- Made as a typical Linux cli application (supports cli "dash" and positional arguments, relative path, output filename guessing).
- System endianness independent (file could be encrypted on a little-endian system and decrypted on a big-endian).
- Tested on 5gb file (md5 checksum matched after decryption and encryption, took 3:35 minutes to encrypt a file and 3.19 to decrypt with 4kb chunk size) and on a zero-length file.
- Uses libgcrypt, highly popular and mostly preinstalled on all modern Linux distributions
$ git clone https://github.com/hatomist/ring_test_task_aes
$ cd ring_test_task_aes
$ ./build.sh # or manually with CMake
The executable will be placed at ./build/ring_test_task_aes
ring_test_task_aes [-deh] file key [out-file/path]
Encrypt or decrypt file using AES-256 encryption algorithm.
- -d Decrypt given file
- -e Encrypt given file (default)
- -f Overwrite files
- -h Show this page
Exit status:
0 if OK,
1 if critical error.
