Cryptology ePrint Archive: Report 2011/332
A depth-16 circuit for the AES S-box
Joan Boyar and Rene Peralta
Abstract: New techniques for reducing the depth of circuits for cryptographic applications are described and applied to the AES S-box. These techniques also keep the number of gates quite small. The result, when applied to the AES S-box, is a circuit with depth 16 and only 128 gates. For the inverse, it is also depth 16 and has only 127 gates.
There is a shared middle part, common to both the S-box and its inverse, consisting of 63 gates.
Category / Keywords: implementation / AES; S-box; nite eld inversion; circuit complexity; circuit depth.
Date: received 17 Jun 2011
Contact author: peralta at nist gov
Available format(s): PDF | BibTeX Citation
Version: 20110622:201147 (All versions of this report)
Discussion forum: Show discussion | Start new discussion
[ Cryptology ePrint archive ]