Securing Computerized Personal Identification Data with Confidentiality and Non-repudiation Capabilities Based on Programmable System on Chip (PSoC) Technology

In this study, a cipher/decipher based on programmable system-on-chip (PSoC) technology is proposed to prevent unauthorized people from revealing and abusing users’ computerized personal identification data (PID) during transit and at rest. The proposed PSoC-based cipher/decipher consists of a Public Key Infrastructure (PKI) authentication protocol, a programmable microcontroller named AT89S51 single chip, and an application specific integrated chip (ASIC) named EPF10K Field Programmable Gate Array (FPGA) device. The PKI authentication protocol with the registration and transaction processes for verification/identification is used to secure the encrypted PID data transmitted on the Internet. The programmable microcontroller mainly programs the encrypting/decrypting codes and the ASIC device is implemented with the stream cipher’s logical operations, including, segmentation, exclusive or (XOR), and rotation. This design supports off-line encryption of numerous users’ PID. The proposed approach has been simulated using C programming language running on a 1,500MHz Pentium PC with 512 MB of RAM. From the experimental results, the size of the ciphertext, the size of the key stream, and the encryption time are dependent on the secret key, nonce, and plaintext; the design of ASIC hardware device is of low hardware cost and low design complexity; and the software of PSoC-based cipher/decipher could provide better code density. Conclusively, using certificates and dynamic cookies for verification/identification ensures that only authorized users can obtain the access to their personnel record. [Sung-Tsun Shih, Chian-Yi Chao, Chin-Ming Hsu. Securing Computerized Personal Identification Data with Confidentiality and Non-repudiation Capabilities Based on Programmable System on Chip (PSoC) Technology. Life Science Journal. 2011; 8(4):916-922] (ISSN:1097-8135). http://www.lifesciencesite.com.