Public key cryptosystem with roaming user capability

Details Public key cryptosystem with roaming user capability Public key cryptosystem with roaming user capability

1998-11-25

2000-11-28

Peeso, Thomas R.

Cryptography

Communication system using cryptography

380259, 705 74, 713150, 713201, G09C 308

Patent

active

061545430

ABSTRACT:
A public key cryptosystem with roaming user capability within a network that allows secure communication between users of the system, client machines, and encryption servers. A client machine generates and stores an encrypted private key on an encryption server. A user may then access the encrypted private key from any client machine located on the network and decrypt it using a passphrase, thus giving the user roaming capability. The private key may then be used to decrypt any encrypted messages received. A user can generate a digital message, encrypt it with a client recipient's public key, and transmit it to the encryption server from any client machine on the network.

REFERENCES:
patent: 4200770 (1980-04-01), Hellman et al.
patent: 4405829 (1983-09-01), Rivest et al.
patent: 5619574 (1997-04-01), Johnson et al.
patent: 5748735 (1998-05-01), Ganesan
patent: 5757916 (1998-05-01), MacDoran et al.
patent: 5903652 (1999-05-01), Mital
patent: 5987440 (1999-11-01), O'Neil et al.

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