Question: In an RSA cryptosystem, Bobs public key is (n = 629, e = 43). Alice uses this public key to encrypt the word MARCH and

In an RSA cryptosystem, Bobs public key is (n = 629, e = 43). Alice uses this public key to encrypt the word MARCH and send the ciphertext to Bob. First, she represents this word in ASCII where the capital letters A, B, C, . . . , X, Y, Z are represented by integers 65, 66, 67, . . . ,88, 89, 90 respectively. In the settings of this exercise, Alice again encrypts and sends Bob a text message M represented with ASCII. Bob receives the following ciphertext:

142, 190, 326, 142

Recover the message M. (You can use online modular calculators available at the Web)

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