RSA Cryptography Implementation in C++

Straightforward and educational RSA implementation in C++.
No external crypto libraries. Everything is written from scratch to clearly show how RSA actually works.

What’s inside

• RSA key generation, encryption, decryption
• Custom BigInt with arbitrary-precision arithmetic
• Miller-Rabin primality test
• CRT-optimized decryption
• Fast modular exponentiation
• Text and binary file encryption
• Interactive console app
• Built-in tests and benchmarks