This invention describes a system and method for creating secure communication sessions between a client and a server, such as for email, interactive chats, or software updates. It focuses on establishing a secure connection efficiently by using unique, random numbers (nonces) exchanged between the client and server to confirm their identities and then encrypting subsequent messages with minimal software code and network bandwidth. The core mechanism is a computer program product that directs the client and/or server to perform these secure communication steps.
Why it matters: Filed in 2001, this invention aimed for highly efficient secure communication when network bandwidth and computational resources were more constrained. Today, ubiquitous high-speed networks and highly optimized cryptographic libraries make the 'less software code and network bandwidth' goal of this invention far more performant and accessible for a wider range of applications, from IoT to real-time communication.
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