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A Coprocessor Architecture for 80/112-bit Security Related Applications

Muhammad Rashid*, Majid Alotaibi

1 Department of Computer Engineering, Umm Al-Qura University, Makkah, 21955, Saudi Arabia

* Corresponding Author: Muhammad Rashid. Email: email

Computers, Materials & Continua 2023, 74(3), 6849-6865.


We have proposed a flexible coprocessor key-authentication architecture for 80/112-bit security-related applications over field by employing Elliptic-curve Diffie Hellman (ECDH) protocol. Towards flexibility, a serial input/output interface is used to load/produce secret, public, and shared keys sequentially. Moreover, to reduce the hardware resources and to achieve a reasonable time for cryptographic computations, we have proposed a finite field digit-serial multiplier architecture using combined shift and accumulate techniques. Furthermore, two finite-state-machine controllers are used to perform efficient control functionalities. The proposed coprocessor architecture over and is programmed using Verilog and then implemented on Xilinx Virtex-7 FPGA (field-programmable-gate-array) device. For and , the proposed flexible coprocessor use 1351 and 1789 slices, the achieved clock frequency is 250 and 235 MHz, time for one public key computation is 40.50 and 79.20 μs and time for one shared key generation is 81.00 and 158.40 μs. Similarly, the consumed power over and is 0.91 and 1.37 mW, respectively. The proposed coprocessor architecture outperforms state-of-the-art ECDH designs in terms of hardware resources.


Cite This Article

APA Style
Rashid, M., Alotaibi, M. (2023). A coprocessor architecture for 80/112-bit security related applications. Computers, Materials & Continua, 74(3), 6849-6865.
Vancouver Style
Rashid M, Alotaibi M. A coprocessor architecture for 80/112-bit security related applications. Comput Mater Contin. 2023;74(3):6849-6865
IEEE Style
M. Rashid and M. Alotaibi, "A Coprocessor Architecture for 80/112-bit Security Related Applications," Comput. Mater. Contin., vol. 74, no. 3, pp. 6849-6865. 2023.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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