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CAP Cryptographic Analysis Program

CAP Cryptographic Analysis Program. Identifying Playfair Help Presentation. Press Enter or click on your mouse button to continue. Is it a Playfair Cipher?. There are several characteristics of Playfair ciphertext that can be useful in identifying it as a Playfair system

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CAP Cryptographic Analysis Program

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  1. CAPCryptographic Analysis Program Identifying Playfair Help Presentation Press Enter or click on your mouse button to continue

  2. Is it a Playfair Cipher? • There are several characteristics of Playfair ciphertext that can be useful in identifying it as a Playfair system • Since it is a substitution system, the rare consonants j, k, q, x, and z will appear in higher frequencies than plaintext and digraphs containing these consonants will appear more frequently • There are an even number of letters in the ciphertext • When the ciphertext is broken up into digrams, doubled letters such as SS, EE, MM, . . . will not appear.

  3. Using CAP • CAP will help in the process of identifying a Playfair (or other polygraphic) system Select PolyID

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