Method for Security Context Switching and Management in a High Performance Security Accelerator System

摘要

A security context management system within a security accelerator that can operate with high latency memories and can provide line-rate processing on several security protocols. The method employed hides the memory latencies by having the processing engines working in a pipelined fashion. It is designed to auto-fetch security context from external memory, and will allow any number of simultaneous security connections by caching only limited contexts on-chip and fetching other contexts as needed. The module does the task of fetching and associating security context with ingress packet, and populates the security context RAM with data from the external memory.