Sage Interactions - Cryptography

Shift Cipher

• Shift Cipher Encryption
• Shift Cipher Decryption

Affine Cipher

• Affine Cipher Encryption
• Affine Cipher Decryption

Substitution Cipher

• Substitution Cipher

Playfair Cipher

• Playfair Encryption
• Playfair Decryption

Frequency Analysis Tools

• Letter Frequency Counter
• Frequency Analysis Decryption Guesser

Vigenère Cipher

• Vigenère Cipher Encryption
• Vigenère Cipher Decryption

One-Time Pad

• One-Time Pad

Hill Cipher

• Hill Cipher Encryption
• Hill Cipher Decryption

Modular Arithmetic (Preliminaries for RSA, Diffie-Hellman, El Gamal)

• Modular Arithmetic Multiplication Table
• Modular Exponentiation
• Discrete Log Problem
  • Solving for x
  • Solving for b

RSA

• RSA, From Alice's Perspective
• RSA, From Babette's Perspective
• RSA With Digital Signatures