Cryptography Questions
A Vigenere cipher is a method of encrypting plaintext by using a series of interwoven Caesar ciphers based on a keyword. Each letter of the keyword corresponds to a shift value, and the plaintext is shifted by these values to produce the ciphertext. The Vigenere cipher is more secure than the simple Caesar cipher as it introduces variability in the shift values, making it harder to decipher without knowing the keyword.