PGP 2.6ui has an undocumented feature. When generating a Public/Secret key pair PGP documentaion shows the command "pgp -kg" as the way to generate the keys. I had posted about how pgp uses a small public key exponent of 17 which is 5 bits. It turns out that this is only the default setting. An Un-Documented feature in PGP 2.6ui (I don't know about other versions as I don't have source code for them) lets you specify the number of bits in your public key exponent. The command "pgp -kg keybits ebits" will let you specify this public key exponent size. For example "pgp -kg 1024 256" will generate a key with modulus of aprox 1024 bits and a public key exponent of 256 bits rather than the 5 bit default. Too Bad pgp doesn't let you look at the public key exponent. I had to write some code to see them. -tom