Hill Cipher Visualization
Interactive visualization of the Hill cipher encryption and decryption process using matrix operations
By Mohamed Habib Jaouadi•January 4, 2025•
Post Related
#cryptography
#classical-ciphers
#linear-algebra
#matrix
#encryption
#interactive
Deep Dive: More on the Hill Cipher in this blog post: The Hill Cipher: Linear Algebra Meets Cryptography
Hill Cipher Interactive Demo
Encrypt and decrypt messages using the Hill cipher with 2×2 matrices. The inverse matrix is automatically calculated for decryption testing.
Matrix: [[3, 2], [5, 7]]
How it Works
- Encryption: C = K × P (mod 26)
- Decryption: P = K⁻¹ × C (mod 26)
- The key matrix must be invertible modulo 26
- Text is processed in 2-letter blocks
- Odd-length messages are padded with 'X'