Encrypting the message, Using the English alphabet (i.e.,

Encrypting the message

Reference no: EM1321726

Using the English alphabet (i.e., mod 26 arithmetic) let plaintext = {p1, p2,… , pn} and corresponding ciphertext = {c1, c2,… , cn}. Consider the encryption function is ci = pi + 15 (mod 26). If you accept the ciphertext message YPHDCRPBEQTAA, decrypt it in order to recover the plaintext. State the decryption function, and recovered plaintext? What kind of cipher is this?

Reference no: EM1321726

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