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Cryptography is the practice and study of logical means used to achieve information confidentiality, integrity and authenticity. It covers, among other things, encryption (making some data unreadable except for those who know a given secret element, called a key), data hashing (in particular for password storage) and digital signatures (provable integrity and authenticity with non-repudiation).

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I recently read some articles on EMV and the various ways in which it has been improved over the years. I then read this which shows that it has been possible for some time to exploit EMV via a man i …
asked Jun 13 '12 by Faraday