Tools:
   
Ciphers
  We'll encrypt or decrypt your message.
 
Caesar Cipher (Shift Cipher) Letters to Numbers
Multiplicative Cipher Affine Cipher
Substitution Cipher Vigenere Cipher
   
Sieve of Eratosthenes
  We'll help you find prime numbers.
   
Cracking tool
  Don't know the key? We'll help you to decrypt anyway.
 
Substitution (Frequency Analysis) Crack Vigenere
   
Mathematical Tools
  Get help with prime #'s, modular arithmetic and other special calculations.

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