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 ...

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Determine the Identity of Caller

Let me explain my situation. I have a provider which is made up of a registration page and a web service. Online vendors (clients) register with the provider by providing details such as username, ...