Lightweight file encryption and decryption utility

What is it?

PME is a lightweight file encryption and decryption command line utility. It's written in C++ and uses only Standard Library calls so there are no external depencies. PME has been built and tested on Windows 10 and Ubuntu on x86 architecture. Built with Gnu gcc.

In this repository you'll find:

• C++ source code
• Simple build script
• Test example

Usage

• pme infile outfile password

Description

• infile input file to be encrypted or decrypted
• outfile output file
• password key used to encrypt or decrypt a file

Build

• Run make.bat (simple 1-liner, runs on both Windows and Linux)

Test

• Run test.bat (Windows) or test.sh (Linux)
  • Encrypts test_plain.txt to create test_enc.txt
  • Decrypts test_enc.txt creating test_dec.txt
  • Verifies by comparing test_dec.txt to test_plain.txt

Example

• Encrypt a plain unecnrypted file
  • pme myfile_plain.pdf myfile_enc.dat mypassword
• Now decrypt it
  • pme myfile_enc.dat myfile_dec.pdf mypassword
• Finally, verify integrity of decrypted file
  • diff -bwcs --binary myfile_plain.pdf myfile_dec.pdf

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