RSA Encryption Demo

Explore RSA public-key cryptography with interactive key generation and encryption/decryption

🔑 Key Generation

Key Size (bits)

Message0/50 characters

Key Generation: Choose two large prime numbers p and q

Calculate n: n = p × q (public modulus)

Calculate φ(n): φ(n) = (p-1) × (q-1)

Choose e: Public exponent (commonly 65537)

Calculate d: Private exponent where e × d ≡ 1 (mod φ(n))

⚠️ This is a simplified demo. Real RSA uses much larger keys (2048+ bits)

🔒 RSA security relies on the difficulty of factoring large composite numbers

🚨 Never use small key sizes in production (minimum 2048 bits)

✅ RSA is widely used for key exchange and digital signatures

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