A Cryptosystem Based on Vigen?re Cipher With Varying Key

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Provided by: International Journal of Advanced Research in Computer Engineering & Technology
Topic: Security
Format: PDF
Privacy is one of the key issues information security addresses. Through encryption one can prevent a third party from understanding raw data during signal transmission. The encryption methods for enhancing the security of digital contents has gained high significance in the current era of breach of security and misuse of the confidential information intercepted and misused by the unauthorized parties. This paper sets out to contribute to the general body of knowledge in the area of cryptography application and by developing a new way of implementing Vigen?re cipher encryption algorithm by automatically changing the cipher key after each encryption step. The new method will use successive keys that will be dependent on the initial key value during the encryption process.
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