CORE 139 Methods and Issues in Cryptology Spring 2004

Additive Cipher Cracker Tool

Enter a ciphertext in the box below. This tool will compute all possible Caesar shifts of the ciphertext.

The output shows the ciphertext letters in bold down the left side of the window, with each possible shift shown in columns. High-frequency letters (for English) are shown in red, with low-frequency letters in blue; counts for each type are shown at the bottom of each column. The most likely plaintext has a high count for high-frequency letters and a low count for low-frequency letters.

ciphertext:


sbridgeman@mail.colgate.edu last updated: --Wed Jan 28 19:50:33 Eastern Standard Time 2004--