Assignment – Discussion Topic 1

    Assignment – Discussion Topic 1

    The Vigenère Cipher

     

    Primary Task Response:

    Please provide a detailed response to the below to include specific details and examples.

    • What is the Vigenère Cipher?
    • How does it work?
    • Although the Vigenère cipher was an improvement upon previous historical encryption techniques, it is still vulnerable.  How would an attacker break a Vigenère-style cipher? 

    Try your hand!

    1.  Encrypt the below message using the Vigenère cipher.

    • NOW IS THE TIME FOR ALL GOOD MEN TO COME TO THE AID OF THEIR COUNTRY.

    2.  Decrypt the below message using the Vigenère cipher.  The passphrase is ‘crypto.’

    • Vyc Kbugecgx Qkgftk kcj btosnfntw pa dyiasorrxvwce Zatwuv bt Owivltks ke rwx 16hj tccmitp

    3.  Create a Vigenère cipher of your own and see who can crack it!  Toward the end of the week, provide the solution to your cipher.

     

    Peer Response(s):  Read the responses from your peers, attempt to crack the cipher codes presented and offer a constructive critique or additional information that adds substantively to the discussions.  Be sure to acknowledge any outside sources you use.

     

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