19th International Conference on Advanced Information Networking and Applications (AINA'05) Volume 1 (AINA papers) (2005)
Mar. 25, 2005 to Mar. 30, 2005
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/AINA.2005.150
Liang Cai , Zhejiang University
Xiaohu Yang , Zhejiang University
Chun Chen , Zhejiang University
<p>More and more mobile applications require the ability to issue digital signatures. Traditionally, digital signatures are based on asymmetric cryptographic techniques which make them computationally expensive. Currently, all mobile devices tend to have limited computational capabilities and equally limited power. This makes them ill-suited for complex cryptographic computations.</p> <p>We designed a Server-aided PKI Service (SaPKI) to offload work from clients in mobile networks such as GSM and CDMA. Mobile clients can utilized the powerful (both CPU speed and power supply) SaPKI server to generate RSA keys and digital signatures.</p> <p>The paper details the implementation of SaPKI Service. A secure "cell phone-banking" application has been implemented on SaPKI architecture in CDMA-1X mobile network. After thorough performance analysis, we concluded that SaPKI can significantly improve the performance of mobile client's cryptographic operation.</p>
L. Cai, C. Chen and X. Yang, "Design and Implementation of a Server-Aided PKI Service (SaPKI)," 19th International Conference on Advanced Information Networking and Applications (AINA'05) Volume 1 (AINA papers)(AINA), Taipei, Taiwan, 2005, pp. 859-864.