Having issues with these ones. Not sure where to go or what to do.

Use RSA encryption with e-3,n-15 to encrypt the word "beach". The letters have been converted to numeric values and me has been computed for you plaintext letter m: numeric replme |ciphertext c = me mod n 12 27 512 Use RSA encryption with d = 11, n = 15 to decrypt the cipher text given below. You will need to also convert the numeric values to letters (1-a, 2-b, 26 z. ciphertext cd m=cd mod n plaintext letter 8589934592 5 48828125 12 743008370688 2048