Degenerate keys for RSA encryption
A degenerate key is one which fails to encrypt the plain text: Encr(x) = x for
all possible plain text messages, x. This research gives a necessary and sufficient
condition for a key to be degenerate. (Note, if a public key is degenerate, its
private key will also be degenerate)
Published in
SIGCSE Inroads, Vol 41, No. 2, June 2009, pages 95-98.