do you kno any thin bout cryptography???.....?

Question

am doin a project on tis.....need help bout password protection.....

Answer 1

What exactly is your question? Cryptography is the use of a "key" (a variable length string of code that is combined with data) to encrypt data, but you will need to be more specific.

Answer 2

Cryptography (or cryptology; derived from Greek κρυπτός kryptós "hidden," and γράφειν gráfein "to write") is a discipline of mathematics concerned with information security and related issues, particularly encryption, authentication, and access control. Its purpose is to hide the meaning of a message rather than its existence. In modern times, it has also branched out into computer science. Cryptography is central to the techniques used in computer and network security for such things as access control and information confidentiality. Cryptography is used in many applications that touch everyday life; the security of ATM cards, computer passwords, and electronic commerce all depend on cryptography

Answer 3

i have given you the solution in other question.