IPsec-Protected Transport of HDTV over IP

  • Peter Bellows
  • Jaroslav Flidr
  • Ladan Gharai
  • Colin Perkins
  • Pawel Chodowiec
  • Kris Gaj
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2778)

Abstract

Bandwidth-intensive applications compete directly with the operating system’s network stack for CPU cycles. This is particularly true when the stack performs security protocols such as IPsec; the additional load of complex cryptographic transforms overwhelms modern CPUs when data rates exceed 100 Mbps. This paper describes a network-processing accelerator which overcomes these bottlenecks by offloading packet processing and cryptographic transforms to an intelligent interface card. The system achieves sustained 1 Gbps host-to-host bandwidth of encrypted IPsec traffic on commodity CPUs and networks. It appears to the application developer as a normal network interface, because the hardware acceleration is transparent to the user. The system is highly programmable and can support a variety of offload functions. A sample application is described, wherein production-quality HDTV is transported over IP at nearly 900 Mbps, fully secured using IPsec with AES encryption.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Peter Bellows
    • 1
  • Jaroslav Flidr
    • 1
  • Ladan Gharai
    • 1
  • Colin Perkins
    • 1
  • Pawel Chodowiec
    • 2
  • Kris Gaj
    • 2
  1. 1.USC Information Sciences InstituteArlingtonUSA
  2. 2.Dept. of Electrical and Computer EngineeringGeorge Mason UniversityFairfaxUSA

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