AES Software Implementations on ARM7TDMI

  • Matthew Darnall
  • Doug Kuhlman
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4329)


Information security on small, embedded devices has become a necessity for high-speed business. ARM processors are the most common for use in embedded devices. In this paper, we analyze speed and memory tradeoffs of AES, the leading symmetric cipher, on an ARM7TDMI processor. We give cycle counts as well as RAM and ROM footprints for many implementation techniques. By analyzing the techniques, we give the options we found which are the most useful for certain purposes. We also introduce a new implementation of AES that saves ROM by not explicitly storing all the SBOX data.


Block Cipher Advance Encryption Standard Digital Right Management Embed Device Encryption Round 
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

  • Matthew Darnall
    • 1
  • Doug Kuhlman
    • 2
  1. 1.Department of MathematicsUniversity of WisconsinMadisonUSA
  2. 2.Motorola LabsSchaumburgUSA

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