TY - GEN
T1 - A 1.69 Gb/s area-efficient AES crypto core with compact on-the-fly key expansion unit
AU - Liu, Po Chun
AU - Chang, Hsie-Chia
AU - Lee, Chen-Yi
PY - 2009/12/1
Y1 - 2009/12/1
N2 - The AES algorithm published in 2001 is now the most popular symmetric encryption algorithm. Several implementations have beed proposed but few of them considered the hardware cost and the throughput as a whole. This paper presents an AES core to be capable of both encryption and decryption with three different key lengths: 128-, 192-, and 256-bit. The overall hardware cost was optimized by a very compact on-the-fly key expansion unit and a highly integrated encryption/decryption datapath. The compact on-the-fly key expansion unit is achieved by sharing expansion processes of different key lengths. The integrated data datapath shares hardware resources between encryption and decryption. After manufactured in 90nm CMOS technology, the area of the chip is 15,577 equivalent gates with throughput up to 1.69 Gb/s operating at 131.8 MHz.
AB - The AES algorithm published in 2001 is now the most popular symmetric encryption algorithm. Several implementations have beed proposed but few of them considered the hardware cost and the throughput as a whole. This paper presents an AES core to be capable of both encryption and decryption with three different key lengths: 128-, 192-, and 256-bit. The overall hardware cost was optimized by a very compact on-the-fly key expansion unit and a highly integrated encryption/decryption datapath. The compact on-the-fly key expansion unit is achieved by sharing expansion processes of different key lengths. The integrated data datapath shares hardware resources between encryption and decryption. After manufactured in 90nm CMOS technology, the area of the chip is 15,577 equivalent gates with throughput up to 1.69 Gb/s operating at 131.8 MHz.
UR - http://www.scopus.com/inward/record.url?scp=72849127448&partnerID=8YFLogxK
U2 - 10.1109/ESSCIRC.2009.5326020
DO - 10.1109/ESSCIRC.2009.5326020
M3 - Conference contribution
AN - SCOPUS:72849127448
SN - 9781424443536
T3 - ESSCIRC 2009 - Proceedings of the 35th European Solid-State Circuits Conference
SP - 404
EP - 407
BT - ESSCIRC 2009 - Proceedings of the 35th European Solid-State Circuits Conference
T2 - 35th European Solid-State Circuits Conference, ESSCIRC 2009
Y2 - 14 September 2009 through 18 September 2009
ER -