Simplify the following text for a Grade 11 native English-speaking person.
Original: The development of RC2 was sponsored by Lotus , who were seeking a custom cipher that , after evaluation by the NSA , could be exported as part of their Lotus Notes software .
Simplified: The development of RC2 was sponsored by Lotus , who were seeking a custom cipher be exported as part of their Lotus Notes software , after evaluation by the NSA .