Hardware implementation of a high speed self-synchronizing cipher mode

Author

Yuanchi Tian ; Heys, Howard M.

Author_Institution

Dept. of Electr. & Comput. Eng., Memorial Univ. of Newfoundland, St. John´s, NL, Canada

fYear

2015

fDate

3-6 May 2015

Firstpage

695

Lastpage

700

Abstract

Pipelined statistical cipher feedback (PSCFB) mode is a new mode of operation for block cipher encryption. It is an improved version of conventional SCFB mode with higher throughput. SCFB mode has the mechanism of self synchronization to recover from bit slips during transmission in a communication channel. The mechanism of SCFB mode resembles output feedback (OFB) mode and cipher feedback (CFB) mode. However it has self synchronization that OFB mode does not and has higher efficiency than CFB mode. To improve the throughput, PSCFB is a modified version of SCFB that allows for the pipelining of the underlying block cipher while still preserving the efficiency and self-synchronizing capabilities. In this paper, the Advanced Encryption Standard (AES) with a pipeline architecture is used as the block cipher in PSCFB. The PSCFB system is designed, simulated and synthesized targeted to an Altera Cyclone IV FPGA. The structures and processes of both the encryption and decryption are presented. The system performance is analyzed based on the simulation and synthesis results.

Keywords

cryptography; field programmable gate arrays; synchronisation; AES; Altera Cyclone IV FPGA; OFB mode; PSCFB mode; advanced encryption standard; bit slips; block cipher encryption; communication channel; decryption analysis; encryption analysis; hardware implementation; high-speed self-synchronizing cipher mode; output feedback mode; pipeline architecture; pipelined statistical cipher feedback mode; system performance analysis; throughput improvement; Ciphers; Clocks; Encryption; Pipeline processing; Radiation detectors; Registers; Synchronization; Advanced Encryption Standard (AES); Block Cipher; Digital Hardware; Mode of Operation; PSCFB;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2015 IEEE 28th Canadian Conference on

Conference_Location

Halifax, NS

ISSN

0840-7789

Print_ISBN

978-1-4799-5827-6

Type

conf

DOI

10.1109/CCECE.2015.7129359

Filename

7129359