System and method for encrypted communication

Details System and method for encrypted communication System and method for encrypted communication

2011-07-19

2011-07-19

Smithers, Matthew B (Department: 2437)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C726S002000, C726S014000, C726S015000

Reexamination Certificate

active

07984290

ABSTRACT:
In an encryption communication using VPN technologies, a load on a VPN system becomes large if the number of communication terminals increases. When an external terminal accesses via an internal terminal an application server, processes become complicated because it is necessary to perform authentication at VPN and authentication at the application server. A management server is provided for managing external terminals, internal terminals and application servers. The management server authenticates each communication terminal and operates to establish an encryption communication path between communication terminals. Authentication of each terminal by the management server relies upon a validation server. When the external terminal performs encryption communication with the application server via the internal terminal, two encryption communication paths are established and used between the external terminal and internal terminal and between the internal terminal and application server.

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