Improved Hybrid Cryptographic Methods: Enhancing Caesar and Vigenère Cipher Algorithms
Keywords:
Caesar cipher, Data security, Hybrid cipher techniques, Hybrid cryptography, Secure communication, Vigenère cipherAbstract
This study presents a novel approach to enhancing the security of traditional cryptographic techniques by integrating improved hybrid methods based on the Caesar and Vigenère cipher algorithms. While these classical ciphers have historical significance, they are increasingly vulnerable to modern cryptanalysis. Our research introduces innovative modifications that combine the strengths of both algorithms, resulting in a robust encryption framework capable of resisting various attack vectors. The Vigenere and Caesar ciphers were expanded and changed to incorporate symbols, numerals, and alphabets. However, this also caused confusion and diffusion within the newly created modified cipher. The modified hybrid of the Vigenère and Caesar ciphers is now a very powerful cipher that is hard to crack with brute force, frequency methods, etc. Through comprehensive analysis and experimentation, we demonstrate significant improvements in key space complexity and decryption time efficiency while maintaining user-friendliness. The proposed hybrid model not only fortifies the encryption process but also ensures that it remains accessible for practical applications, making it suitable for both educational purposes and real-world implementations in secure communications.
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