Security mechanisms for real-time high-definition multimedia surveillance system
Jie Xu · Jisuanji gongcheng yu sheji · 2013
Very long instruction word architecture digital signal processor(DSP) has a powerful processing ability.By adding special instructions and improving the software architecture on the processor,we realize the cryption chip,meet the real-time encryption and decryption and certification requirements for high-definition multimedia surveillance system.The EDSP is the first time to meet the needs of processing the scalable audio and video coding stream which complies with the security monitoring digi-tal audio and video coding technology standards.By realizing the interface between audio/video chip,EDSP receives the audio/video encoding stream.The three chips together form the high-definition multimedia surveillance system.A lot of software and FPGA evaluation validations ensure the data timely secure and accuracy.