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Summary: | The mathematical techniques for attacking the Vignére are quite sophisticated. The principle part of the attack involves determining the length of the key, n say. Once this is done the problem resolves itself into breaking n separate Caesar ciphers. The main defence against this attack is to use very long keys resulting in insufficient data for an effective attack. The idea of extending the key will be returned to later! |
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Creators: | |
Divisions: | Academic > School of Computing, Engineering and Built Environment > Department of Computing > Computing |
Copyright holder: | Copyright © Glasgow Caledonian University |
Viewing permissions: | World |
Depositing User: | |
Date Deposited: | 05 Apr 2019 13:49 |
Last Modified: | 13 Feb 2020 09:57 |
URI: | https://edshare.gcu.ac.uk/id/eprint/4810 |
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