-----BEGIN PGP SIGNED MESSAGE----- The problem with this is that public-key encryption is slooooow. I never thought of having a fixed key for each user; even the STU-III ignition keys get reloaded every so often. Until I implement DH key exchange, caller & callee must have some way to agree on a key. This is far from ideal, but (based on PGP's RSA implementation on my Mac) I don't think RSA would cut it. One possibility is to use a PGP-style keyring; the caller can encrypt the session key with the callee's pubkey and transmit it. I think that this is less secure than DH, though. More comments are way welcome! Thanks. - -Paul - -- Paul Robichaux, KD4JZG | "Crypto-anarchy means never having to say perobich@ingr.com | you're sorry." - Tim May (tcmay@netcom.com) Intergraph Federal Systems | Be a cryptography user- ask me how. -----BEGIN PGP SIGNATURE----- Version: 2.3a iQCVAgUBLGb6kCA78To+806NAQFsUgP/W2eKFBiKLzBg1Aip2VTzg6RJDAU4C/mt pW0RMx4dLK7ZRp8r3frmLHDnS2dcEwtu9weNOnzkFyK/j2056kn52O0icTX9w4gl xDLIm/ay3gNaDrqZDA81c9vYsdHAn3pQaK1dxx3VZoWA6Je62ULvNlrxGIEXrvX5 zEEsV/5dYkQ= =YFQP -----END PGP SIGNATURE-----