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C-testable bit parallel multipliers over GF(2m)

Published: 06 February 2008 Publication History

Abstract

We present a C-testable design of polynomial basis (PB) bit-parallel (BP) multipliers over GF(2m) for 100% coverage of stuck-at faults. Our design method also includes the method for test vector generation, which is simple and efficient. C-testability is achieved with three control inputs and approximately 6% additional hardware. Only 8 constant vectors are required irrespective of the sizes of the fields and primitive polynomial. We also present a Built-In Self-Test (BIST) architecture for generating the test vectors efficiently, which eliminates the need for the extra control inputs. Since these circuits have critical applications as parts of cryptography (e.g., Elliptic Curve Crypto (ECC) systems) hardware, the BIST architecture may provide with added level of security, as the tests would be done internally and without the requirement of probing by external testing equipment. Finally we present experimental results comprising the area, delay and power of the testable multipliers of various sizes with the help of the Synopsys® tools using UMC 0.18 micron CMOS technology library.

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      cover image ACM Transactions on Design Automation of Electronic Systems
      ACM Transactions on Design Automation of Electronic Systems  Volume 13, Issue 1
      January 2008
      496 pages
      ISSN:1084-4309
      EISSN:1557-7309
      DOI:10.1145/1297666
      Issue’s Table of Contents
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Publication History

      Published: 06 February 2008
      Accepted: 01 June 2007
      Revised: 01 June 2007
      Received: 01 June 2006
      Published in TODAES Volume 13, Issue 1

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      Author Tags

      1. C-testable
      2. Galois field
      3. TPG
      4. VLSI design
      5. built-in self-test
      6. cryptography
      7. digital signal processing
      8. error control code
      9. fault
      10. multiplier
      11. polynomials
      12. stuck-at fault
      13. testing

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