Title:
PUBLIC KEY CRYPTOSYSTEM WITH ROAMING USER CAPABILITY
Document Type and Number:
WIPO Patent Application WO2000033506
Kind Code:
A8
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.
Inventors:
BALTZLEY CLIFF A
Application Number:
PCT/US1999/028138
Publication Date:
August 31, 2000
Filing Date:
November 24, 1999
Export Citation:
Assignee:
HUSH COMMUNICATIONS USA INC (US)
International Classes:
G06F1/00; G06F21/00; H04L9/08; H04L9/30; H04L29/06; (IPC1-7): H04L9/32
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