DUE IN 1 HOUR. 3 Questions only

1. An Enigma http://enigmaco.de/enigma/enigma.html encrypted message was intercepted and reads as follows:

OTIBDHEMUOFGMFMHGKMGNDOEGIBBKXZEJWR

A sleeper of ours behind enemy lines sent a message that the enemy's encryption used Rotor1: Z and Rotor3: E . Decrypt the message.

1. An encryption algorithm turned GOOD MORNING AMERICA into FNNC LNQMHMF ZLDQHJZ Identify the encryption algorithm and express it in a mathematical form.

1. The following enemy encrypted message has been intercepted: 

YJRNP<NSTTF<RMYEO::DYSTYYP<PTTPE A sleeper of ours behind enemy lines sent a message that the enemy's encryption had to do with the QWERTY keyboard layout. Decrypt the message and save lives.