Vigenere Autokey

Vigenére Autokey

Rumkin.com >> Web-Based Tools >> Ciphers and Codes

This is an extension to the Vigenere cipher that makes it much harder to break. Instead of repeating the passphrase over and over in order to encrypt the text, the passphrase is used once and the cleartext is used to decrypt or encrypt the text.

This is your encoded or decoded text:

In biblical times, certain tribes would bring two goats to a sacrificial altar. One was slain, the other was said to carry the sins of the congregation and was allowed to escape. This is the basis for the expression "scapegoat."

Tyler Akins <>
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