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Visual cryptography projects in matlab4/16/2023 ![]() In this Project digital images encrypted and decrypted by using symmetric key cryptography using MATLAB. There are few well-known symmetric key algorithms i.e. Here, a single key is used for both encryption and decryption. Symmetric key algorithms are the quickest and most commonly used type of encryption. ![]() There are two basic types of cryptography: Symmetric Key and Asymmetric Key. Cryptography is used in applications present in technologically advanced societies examples include the security of ATM cards, computer passwords and electronic commerce, which all depend on cryptography. In modern times cryptography is considered a branch of both mathematics and computer science and is affiliated closely with information theory, computer security and engineering. Cryptography is the practice and study of hiding information. Cryptography is the art of achieving security by encoding messages to make them non-readable. So, now we have to use coding scheme to ensure that information is hidden from anyone for whom it is not intended, even those who can see the coded data. That is, a message in plain text can be understood by anybody knowing the language as long as the message is not codified in any manner. Author : Jai Singh, Kanak Lata and Javed Ashraf Pages : 448-451Īny communication in the language that you and I speak-that is the human language, takes the form of plain text or clear text.
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