부산대학교 도서관

Cryptography is used to protect data from adversaries who are unauthorized to access it, Cryptograph is used to changes the form of the data using a specific algorithm which can be reversed using a particular key. We already have many Cryptographic algorithms but there is always a need for new algorithms because old techniques can be cracked with new technology and the high processing power of computers, hence we need new techniques that are much more robust and harder to crack. In this paper, we propose a new encryption algorithm that uses the Basic principle of the Caesar cipher and random generation technique to encrypt the input text. This algorithm is much more secure than the normal Caesar cipher as it generates a random number for each letter and converts it to encrypted text, the use of random numbers makes it very hard to crack. It is also important to understand the concept of key management, which involves generating and storing cryptographic keys securely. Our algorithm we are using 2 lists of random numbers which will together create a large list of random numbers which will be used to encrypt the text. The 2 lists used previously will be our 2 keys which can be used to decrypt the encrypted text.