Introduction

Implementation of cryptographic algorithms in Python & SageMath.

List

Symmetric Ciphers
- Shift Cipher
- Vigenere Cipher
- Affine Cipher
- Enigma Machine Cipher
- Stream Cipher
- TEA (A Tiny Encryption Algorithm)
- DES (Data Encryption Standard)
- AES (Advanced Encryption Standarad)
- Modes of AES
  1. ECB (Electronic Code Book mode)
  2. CBC (Cipher Block Chaining mode)
  3. CFB (Cipher Feedback mode)
  4. OFB (Output Feedback mode)
  5. CTR (Counter mode)
  6. GCM (Galois Counter Mode)
- SM3
- SM4
Asymmetric Ciphers
- RSA
- Elgamal
- ECC
- NTRUEncrypt (broken implementation)
- GGH
Attacks & Algorithms
- Index of Coincidence & Chi-squared Statistic
- Shank's Babystep-Giantstep Algorithm
- Pollard's rho Method
- Gram-Schmidt Algorithm
- Babai's Algorithm
- The LLL Lattice Reduction Algorithm

Reference