Welcome to crypto-toolkit!
Warning! This toolkit is to be used as a demonstration, NOT as a tool for actual encryption!
The MIT License (MIT)
Copyright (c) 2015 Mariusz Skoneczko
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The Caesar cipher is a simple substitution cipher which, as the name suggests, was used by Julius Caesar.
If the Caesar cipher was considered one-dimensional, the Vigenere cipher is two-dimensional. It was put into practice by Blaise de Vigenere.
RSA was invented by Ron Rivest, Adi Shamir and Leonard Adleman. It is the most commonly used public-key cryptosystem as of this writing.
Starting at to the power of get the next prime. Based off that, get another prime starting at the product of the prime and
Public key (share!):
Private key (keep secret!)
Diffie-Hellman key exchange
The Diffie-Hellman was one of the first solutions to the problem of key exchange. It allows two parties to agree on a key over an insecure channel.
Public prime and base
Use RFC3526 standard:
Your private key must be a number between 1 and 2(bits - 1)
Generate public key
Make sure that the steps above are complete, and then press the button below.
Agree on final key
Send the public key to the other person. Get them to give you their public key.
Now you can arrive at the same key!
This key can now be used for symmetric key algorithms.
This is a basic Caesar cipher cracker that shows all possible results from a given ciphertext. Fill in the textbox with the ciphertext, and press the crack button to see all possible plaintext messages.