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An Efficient Design of CCMP for Robust Security Network

  • Duhyun Bae
  • Gwanyeon Kim
  • Jiho Kim
  • Sehyun Park
  • Ohyoung Song
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3935)

Abstract

For high data rate, new mechanisms such as Block Ack and frame aggregation are currently being discussed in IEEE 802.11e and IEEE 802.11n, respectively. These mechanisms need a short response time in each MPDU processing. In this paper, we propose an efficient design of CCMP for IEEE 802.11i to support these new MAC mechanisms. The proposed design adopts the mode toggling approach, in which MIC calculation and data encryption are sequentially performed for each 128 bits of the packet in only one AESCCM core. In our design, the response time is reduced to a short constant period, which takes only 44 clock cycles. In addition, we can reduce hardware complexity and power consumption, because our design uses one AES-CCM core and obtains the reasonable data throughput and response time at even low clock frequency. We have implemented the proposed design, which is targeted to Altera Stratix FPGA device. As a result of the experiments, the CCMP features 285 Mbps data throughput and 0.88 μs . response time at 50 MHz frequency.

Keywords

Clock Cycle Clock Frequency Counter Mode Data Throughput Payload Size 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Duhyun Bae
    • 1
  • Gwanyeon Kim
    • 1
  • Jiho Kim
    • 1
  • Sehyun Park
    • 1
  • Ohyoung Song
    • 1
  1. 1.School of Electrical and Electronic EngineeringChung-Ang UniversitySeoulKorea

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