
Shouhuai Xu (PhD: Fudan University,
2000)
Associate Professor, Department of Computer Science, University of Texas at San
Antonio
office: Science Building 4.01.46
phone: (210)458-5739
fax: (210)458-4437
email: shxu(at)cs(dot)utsa(dot)edu
mailing address:
Department of Computer Science
University of Texas at San Antonio
One UTSA Circle
San Antonio, TX 78249
The 2013 ACM Asia Public-Key
Cryptography Workshop (AsiaPKC 2013)
Research
Supervising
Teaching
Professional
Activities/Services
Publications
Current Research Projects/Threads
- A
Novel Mathematical Foundation for Macroscopic Cyber Security
- Defense
Against Malware/Botnets (Models and Systems)
- Trustworthy
Cloud Computing (Cryptographic Multi-Party Computing, Storage, Systems)
- Highly-Assured
Cryptography (resilient against Malware etc.)
- Assured
Information Sharing and Provenance
Research
Long-term Goal
A Unified Foundation
of Cyber Security
Funded
Research Projects
- PI.
A
Theoretical Framework for Cyber Defense Operations. Funded by ARO (July
2012 -- June 2015)
- Co-PI.
TC: Large: Collaborative Research: Privacy-Enhanced Secure Data
Provenance. Funded by NSF (Sept. 2011 -- Aug. 2016)
- PI.
IAPD: Integrated Adaptive and Proactive Defense against Stealthy Botnets.
Funded by AFOSR (March 2009 -- Oct. 2012)
- Co-PI.
AFOSR MURI: A Framework for Managing the Assured Information Sharing
Lifecycle (July 2008 -- June 2013)
- PI.
Securing the Smart Power Grid. Funded by UTSA (Sept. 2010 -- Aug. 2011)
- Co-PI.
A Systematic Defense Framework for Combating Botnets. Funded by ONR (April
2009 -- Dec. 2010)
- PI. Modeling Cyber Attacks.
Funded by UTSA (Nov. 2008 -- Nov. 2009)
- PI.
Collaborative Research: Secure Knowledge Management: Models and
Mechanisms, funded by NSF CyberTrust (9/1/2005
-- 8/31/2009)
- PI.
SuE: A Framework for Survivable Tactical
Information Systems, Funded by Army Research (4/15/2005 -- 1/14/2008)
- PI.
Survivability Analysis for Cryptographic Key Infrastructures in MANETS,
Funded by UTSA (9/1/2006 -- 12/31/2007)
- PI.
Countering Malicious and Fast-Spreading Malicious Codes, Funded by UTSA
Center for Infrastructure Assurance and Security (6/1/2004 -- 8/31/2006)
RA openings!
I am always seeking highly motivated PhD students who have a strong desire to
pursue excellent PhD work.
Current
PhD/MS Students I supervise
1.
Weiliang Luo (PhD)
2.
Li Xu (PhD)
3.
Zhenxin Zhan (PhD)
4.
Qingji Zheng (PhD)
5.
Greg Hoffer (PhD)
6.
Moustafa Saleh (PhD)
Graduated
students I supervised with Thesis
1.
Adam Tyra (MS Thesis: A Characterization of Complex Network
Attack Resilience), Dec. 2012. (Adam was a part-time student.)
2.
Paul Parker (PhD
Thesis: Protecting Cryptographic Keys and Functions from Software-based
Attacks), Dec 2010. First employment: Assistant Professor at Dallas Baptist
University
3.
Giovanni Del
Valle (Masters Thesis: Protecting Cryptographic Keys from Memory Disclosure
Attacks), May 2010. First employment: Rackspace
4.
Erhan John Kartaltepe (Masters Thesis: Malicious Impostor Emails: Emerging Threats
and Countermeasures), April 2006. First employment: SouthWest
Research Institute.
Defended PhD
Thesis Committees I Served
1.
Hongwei Tian. PhD Thesis: Privacy-preserving
Data Mining Through Data Publishing and Knowledge
Model Sharing. 2012
2.
Lijie Zhang. PhD Thesis: Privacy-Preservation in Social
Graphs. 2012.
3.
Ruting Jia (ECE). PhD Thesis:
Semi-global Stabilization of Nonlinear Systems via Output Feedback and
Sampled-Data Controls with Applications to Power Systems. 2012.
Teaching
CS 6353 Unix
and Network Security (Spring 2013; Graduate)
CS 4363 Cryptography (Spring 2013; Undergraduate)
CS 6393 AT: Cyber Security (Fall 2012; Graduate)
CS 4363 Cryptography (Spring
2012; Undergraduate)
CS 2233 Discrete
Mathematical Structures (Spring 2012; Undergraduate)
CS 6373 Applied Cryptography
(Fall 2011; Graduate)
CS 4363 Cryptography (Spring 2011; Undergraduate)
CS 2233 Discrete
Mathematical Structures (Spring 2011; Undergraduate)
CS 6393 AT: Cyber Security (Fall 2010; Graduate)
CS 4363 Cryptography (Spring 2010;
Undergraduate)
CS 6373 Applied Cryptography (Fall 2009;
Graduate)
CS 4363 Cryptography (Spring 2009; Undergraduate)
CS 6373 Applied Cryptography (Fall 2008;
Graduate)
CS 4363 Cryptography (Spring 2008;
Undergraduate)
CS 6393 Advanced Topics in Computer
Security: Reliable and Secure Distributed Systems (Fall 2007; Graduate)
CS 4363 Cryptography (Spring 2007;
Undergraduate)
CS 6463 AT: Applied Cryptography (Fall
2006; Graduate)
CS 4363 Cryptography (Spring 2006;
Undergraduate)
CS 6973 Special Problems: Applied
Cryptography (Fall 2005; Graduate)
CS 4363 Cryptography (Spring 2005;
Undergraduate)
CS
6973 Principles of Information Security (Fall 2004; Graduate)
CS
4363 Cryptography (Spring 2004; Undergraduate)
CS 6973 Special Problems: Applied
Cryptography (Fall 2003; Graduate)
Professional Activities/Services
- Associate
Editor or Member of Editorial Baord:
- Service
as a program (co-)chair of the following conferences/workshops:
o 2013 ACM Asia Public-Key Cryptography
Workshop (AsiaPKC 2013)
o The Second ACM Workshop on
Scalable Trusted Computing (STC'07)
o The First ACM Workshop on Scalable
Trusted Computing (STC'06)
- Service
as a program committee member of the following
conferences/workshops:
- Service
as a reviewer of the following journals/books:
- ACM Computing Survey
- IEEE/ACM Transactions on Networking (IEEE/ACM ToN)
- ACM Transactions on Sensor Networks (ACM ToSN)
- ACM Mobile Computing and Communications Review
- ACM Transactions on Information and System
Security (ACM TISSEC)
- IEEE Journal on Selected Areas in
Communications (IEEE JSAC)
- IEEE Transaction on Dependable and Secure
Computing (IEEE TDSC)
- IEEE Transactions on Computers (IEEE ToC)
- IEEE Transactions on Wireless Communication
(IEEE TWC)
- IEEE Transactions on Information Security &
Forensics (IEEE TIFS)
- Journla of Computer Security
- International Journal of Information Security
- IEEE Communication Letters
- Elsevier Ad Hoc Networks Journal
- IET Proceedings Information Security
- The Handbook of Information Security (John Wiley
\& Sons, Inc.)
Publications:
Copyright notice: The
copyright of the papers available online had already been transferred to the
corresponding organizations or presses.
- L.
Xu, Z. Zhan, S. Xu,
and K. Ye. Cross-Layer Detection of Malicious Websites. Proceedings of the
Third ACM Conference on Data and Application Security and Privacy (ACM
CODASPY'13).
- W.
Luo and L. Xu and Z.
Zhan and Q. Zheng and S. Xu.
A Security Architecture for Situation Awareness
and Early Warning of Dynamic Cyber Threats against Clouds. Book chapter to
appear in 2013 Springer book entitled ''High Performance Semantic Cloud
Audit.''
- J.
Morales, S. Xu, and R. Sandhu.
Analyzing Malware Detection Efficiency with Multiple Anti-Malware Programs.
Proceedings of The 1st ASE International
Conference on Cyber Security.
- Q.
Zheng, S. Xu and G. Ateniese. Efficient Query Integrity for Outsourced
Dynamic Databases. ACM CCSW'12.
- W.
Dai, P. Parker, H. Jin and S. Xu. Enhancing Data
Trustworthiness via Assured Digital Signing. IEEE Trans. Dependable Secure
Computing 9(6): 838-851 (2012).
- M.
Xu and S. Xu. An
Extended Stochastic Model for Quantitative Security Analysis of Networked
Systems. Internet Mathematics, 8(3): 288-320 (2012).
- Y. Dodis, W. Luo, S. Xu and M. Yung.
Key-Insulated Symmetric Key Cryptography and Mitigating Attacks against
Cryptographic Cloud Software. AsiaCCS'12.
- Q.
Zheng and S. Xu.
Secure and Efficient Proof of Storage with Deduplication.
Proceedings of Second ACM Conference on Data and Application Security and
Privacy (ACM CODASPY'12).
- Y.
Shang, W. Luo, and S. Xu.
L-hop percolation on networks with arbitrary degree distributions and its
applications. Physical Review E, Sept. 2011.
- J.
Morales, M. Main, W. Luo, S. Xu,
and R. Sandhu. Building Malware Infection Trees. Proceedings of the 6th
International Conference on Malicious and Unwanted Software (Malware
2011), to appear.
- S.
Xu, W. Lu, and Z. Zhan. A Stochastic Model of
Multi-Virus Dynamics. IEEE Transactions on Dependable and Secure Computing
(IEEE TDSC), Jan 2012.
- S.
Xu, W. Lu, and L. Xu.
Push- and Pull-based Epidemic Spreading in Networks: Thresholds and Deeper
Insights. ACM Transactions on Autonomous and Adaptive Systems (TAAS), to
appear.
- S. Xu, X. Li, P. Parker, and
X. Wang. Exploiting Trust-Based
Social Networks for Distributed Protection of Sensitive Data. IEEE
Transactions on Information Forensics & Security, 2011.
- earlier version appeared in AsiaCCS'08
- H.
Qian and S. Xu.
Non-Interactive Multisignatures in the Plain
Public-Key Model with Efficient Verification. Information Processing
Letters, accepted, 2010
- S.
Xu, W. Lu, L. Xu, and
Z. Zhan. Adaptive Epidemic Dynamics in Networks: Thresholds and Control.
ACM Transactions on Autonomous and Adaptive Systems (TAAS) --- Special
Issue on Adaptive Distributed Defense Systems. accepted.
- H.
Qian and S. Xu.
Non-Interactive Editable Signatures for Assured Data Provenance. First ACM
Conference on Data and Application Security and Privacy (ACM CODASPY'11).
- Q.
Zheng and S. Xu. Fair
and Dynamic Proof of Retrievability. First ACM
Conference on Data and Application Security and Privacy (ACM CODASPY'11).
- X.
Li, P. Parker, and S. Xu. A Stochastic Model for
Quantitative Security Analysis of Networked Systems. IEEE Transactions on
Dependable and Secure Computing (IEEE TDSC), 2011.
- W.
Tian, C. Qian and S. Xu, Performance comparison and feedback controller
design of network controlled systems with continuous loss of states, Proc.
of 2011 International Conference on Measuring Technology and Mechatronics
Automation.
- J.
Morales, R. Sandhu, and S. Xu.
Evaluating Detection and Treatment Effectiveness of Commercial
Anti-Malware Programs. Proceedings of the 5th International Conference on
Malicious and Unwanted Software (Malware 2010), pp ???.
- J.
Morales, A. Al-Bataineh, S. Xu
and R. Sandhu. Analyzing and Exploiting Network
Behaviors of Malware. SecureComm'10.
- C.
Qian, W. Tian, and S. Xu. Global stabilization over the network with
continuous loss of states. MESA'10 (2010 IEEE/ASME International
Conference on Mechatronic and Embedded Systems and Applications). pp 566-570.
- J.
Morales, E. Kartaltepe, S. Xu,
and R. Sandhu. Symptoms-Based Detection of Bot
Processes. MMM-ACNS-2010 (5th International Conference on Mathematical
Methods, Models, and Architectures for Computer Networks Security).
- E.
Kartaltepe, J. Morales, S. Xu,
and R. Sandhu. Social Network-Based Botnet
Command-and-Control: Emerging Threats and Countermeasures. ACNS'10.
Springer Lecture Notes in Computer Science 6123, pp 511-528.
- S.
Xu, H. Qian, F. Wang,
Z. Zhan, E. Bertino, and R. Sandhu.
Trustworthy Information: Concepts and Mechanisms. WAIM'10 (11th
International Conference on Web-Age Information Management). Springer
Lecture Notes in Computer Science 6184, pp 398-404.
- S.
Xu. Towards a Theoretical Framework for
Trustworthy Cyber Sensing. Proceedings of the 2010 SPIE Conference on SPIE
Defense, Security, and Sensing (DSS'10).
- P.
Parker and S. Xu. A Method for Safekeeping
Cryptographic Keys from Memory Disclosure Attacks. Intrust'09.
- S.
Xu and M. Yung. SocialClouds:
Concept, Security Architecture and Some Mechanisms. Intrust'09.
- J.
Morales, A. Al-Bataineh, S. Xu,
and R. Sandhu. Analyzing DNS Activities of Bot
Processes. Proceedings of the 4th International Conference on Malicious
and Unwanted Software (Malware 2009).
- Q. Ni, S. Xu, E. Bertino, R.
Sandhu and W. Han. An Access Control
Language for a General Provenance Model. Proc. 6th VLDB Workshop on Secure
Data Management (SDM'09).
- S.
Xu, R. Sandhu, and E. Bertino. TIUPAM: A Framework for
Trustworthiness-Centric Information Sharing. Invited paper in Proc.
3rd IFIP WG 11.11 International Conference on Trust Management, 2009.
- S. Xu, Q. Ni, E. Bertino and
R. Sandhu. A Characterization of the
Problem of Secure Provenance Management. Proc. Workshop on Assured
Information Sharing at the IEEE International Conference on Intelligence
and Security Informatics (ISI'09).
- S.
Xu and M. Yung. Expecting the Unexpected:
Towards Robust Credential Infrastructure. FC'09
- J.
Leonard, S. Xu, and R. Sandhu.
A First Step Towards Characterizing Stealthy
Botnets. To appear in the Proceedings of The Fourth International
Conference on Availability, Reliability and Security (ARES'09), IEEE
press, pp ???-???.
- J.
Leonard, S. Xu, and R. Sandhu.
A Framework for Understanding Botnets. To appear in the Proceedings of the
Third International Workshop on Advances in Information Security
(WAIS'09), IEEE press, pp ???-???.
- S.
Xu. Collaborative Attack vs. Collaborative
Defense. Invited Paper in the Proceedings of The 4th International Conference
on Collaborative Computing: Networking, Applications and Worksharing (CollaborativeCom'08), pp
???-???, Nov. 13-16, 2008.
- S.
Xu. (How) Can We Manage the Trustworthiness of
Security Infrastructures and Services. Abstract
of Keynote address in the Proceedings of The 3rd Asia-Pacific
Trusted Infrastructure Technologies Conference (APTC'08), IEEE press, pp ???-???, Oct. 14-17, 2008.
- X.
Ding, G. Tsudik, and S. Xu.
Leak-free Mediated Group Signatures. Journal of Computer Security, Volume
17, Number 4, 2009, pp. 489-514.
- This is the full version of the ICDCS paper
below.
- A.
Kiayias, S. Xu, and M.
Yung. Privacy Preserving Data Mining within Anonymous Credential Systems.
SCN'08.
- S.
Xu and S. Capkun.
Distributed and Secure Bootstrapping of Mobile Ad Hoc Networks: Framework
and Constructions. ACM Transactions on Information and Systems Security
(ACM TISSEC), 12(1), 2008.
- X.
Li, P. Parker, and S. Xu. A Probabilistic
Characterization of A Fault-Tolerant Gossiping
Algorithm. Journal of Systems Science and Complexity, Springer, Accepted.
- D.
Walleck, Y. Li, and S. Xu.
An Empirical Analysis of Certificate Revocation Lists. IFIP DBSec'08.
- S.
Xu, X. Li, and P. Parker. Exploiting Social
Networks for Thresholding Signing:
Attack-resilience vs. Availability. ASIACCS'08.
- E.
Kartaltepe, P. Parker, and S. Xu. How to Secure Your Email Address Book and Beyond.
CANS'07.
- X.
Li, P. Parker, and S. Xu. A Stochastic
Characterization of a Fault-tolerant Gossip Algorithm. HASE'07.
- K.
Harrison and S. Xu. Protecting
Cryptographic Keys from Memory Disclosure Attacks. DSN-DCCS'07.
(Preliminary full version with source code is here; a significantly enriched full
version will become available some time soon.)
- P.
Sharkey, H. Tian, W. Zhang, and S. Xu. Privacy-Preserving Data Mining Through Knowledge
Model Sharing. PinKDD'07.
- X.
Li, P. Parker, and S. Xu. Towards
an Analytic Model of Epidemic Spreading in Heterogeneous Systems.
Qshine'07.
- S.
Xu and K. Han. Envisioning Stealthy Botnet
C&C and Graph-based Detection Metrics (Abstract). DSN'07 fast abstract
track.
- S.
Xu and R. Sandhu. A Scalable and Secure Cryptographic Service. IFIP
DBSec'07. Preliminary full version is here.
- X.
Li, P. Parker, and S. Xu. Towards
Quantifying the (In)Security of Networked Systems.
IEEE AINA'07.
- S.
Xu and Moti Yung. K-anonymous Multi-party Secret Handshakes. Financial
Cryptography and Data Security 2007 (FC'07).
- S.
Xu. On the security of
group communication schemes. Journal of Computer Security, Volume 15,
Number 1, 2007, pp. 129 - 169.
- This
is the full version of the SASN'05 paper below.
- S. Zhu, S. Setia, S. Xu,
and S. Jajodia. GKMPAN: An efficient group rekeying scheme for
secure multicast in ad-hoc networks. Journal of Computer Security,
Volume 14, Number 4, 2006, pp. 301 - 325.
- This is the full version of the Mobiquitous'04
paper below.
- S. Zhu, S. Xu, S. Setia,
and S. Jajodia. LHAP: A Lightweight Network Access Control Protocol
for Ad-Hoc Networks. Elsevier Ad Hoc Networks Journal, Volume 4, Issue
5, Sept. 2006, pp 567-585.
- This is the full version of the MWN'03 paper
below.
- P.
Parker and S. Xu. Towards
Understanding the (In)security of Networked
Systems under Topology-directed Stealthy Attacks. Proceedings of the
2nd IEEE International Symposium on Dependable, Autonomic and Secure
Computing (DASC'06), pp ???-???.
- G.
Tsudik and S. Xu. A Flexible Framework for Secret Handshakes. In
Proceedings of the 6th Workshop on Privacy Enhancing Technologies
(PET'06).
- This is an extended version of the PODC'05 brief
announcement.
- J.
Dowd, S. Xu, and W. Zhang. Privacy-Preserving
Decision Tree Mining Based on Random Substitutions. In the Proceedings
of the 2006 International Conference on Emerging Trends in Information and
Communication Security (ETRICS'06), LNCS 3995, pp 145-159.
- E. Kartaltepe and S. Xu. Towards Blocking Outgoing
Malicious Impostor Emails. In the Proceedings of the 2nd International
Workshop on Trust, Security and Privacy for Ubiquitous Computing. IEEE
Press, pp 657-661.
- S.
Xu. On the Security of
Group Communication Schemes based on Symmetric Key Cryptosystems. In
the Proceedings of ACM Workshop on Security of Ad hoc and Sensor Network
2005 (ACM SASN'05), ACM press, pp 22-31.
- The full version is invited to submit to a
special issue of Journal of Computer Security.
- E. Kartaltepe and S. Xu. On Automatically Detecting
Malicious Imposter Emails. In Proceedings of International Workshop on
Applied PKI 2005 (IWAP'05), IOS Press, pp ??-??.
- G.
Tsudik and S. Xu. Brief Announcement: A Flexible Framework for Secret
Handshakes. In Proceedings of ACM Symposium on Princples
of Distributed Computing 2005 (ACM PODC'05), ACM Press, pp 39.
- S.
Xu and W. Zhang. Knowledge
as a Service and Knowledge Breaching. In the Proceedings of IEEE
International Conference on Service Computing (IEEE SCC'05), IEEE Press,
pp 87-94.
- S.
Xu and M. Yung. K-Anonymous
Secret Handshakes with Reusable Credentials. ACM CCS'04. (full
version not available yet)
- S.
Xu and W. Zhang. PBKM: A
Secure Knowledge Management Framework. NSF/NSA/AFRL Workshop on Secure
Knowledge Management'04.
- S.
Xu and M. Yung. Accountable Ring Signatures: A Smart Card Approach.
IFIP CARDIS'04.
- S. Zhu, S. Setia, S. Xu,
and S. Jajodia. GKMPAN: An Efficient Group Rekeying Scheme for
Secure Multicast in Ad-Hoc Networks. Mobiquitous'04.
- S.
Xu, W. Nelson Jr. and R. Sandhu.
Enhancing Anonymity via Market Competition.
Information Assurance and Security -- IEEE ITCC'04.
- S.
Xu and R. Sandhu. Applying OM-AM to Analyze Digital Rights Management.
7th International Conference on E-Commerce Research, 2004.
- X.
Ding, G. Tsudik, and S. Xu.
Leak-free Group Signatures with Immediate Revocation.
ICDCS'04.
- G.
Tsudik and S. Xu. Accumulating Composites and Improved Group Signing.
Asiacrypt'03; an extended preliminary version is here. (This paper is under
substantial revision; the revisited version will be posted when it is
available.)
- S. Zhu, S. Xu, S. Setia,
and S. Jajodia. Establishing
Pair-Wise Keys for Secure Communication in Ad Hoc Networks: A
Probabilistic Approach. ICNP'03.
- A.
Bagchi, A. Chaudhary,
M. Goodrich, and S. Xu. Constructing
Dijoint Paths for Secure Communication.
DISC'03.
- S. Zhu, S. Xu, S. Setia,
and S. Jajodia. LHAP:
A Light-weight Hop-by-hop Authentication Protocol For Ad-Hoc Networks.
Workshop on Mobile and Wireless Networks (MWN'03, affiliated with
ICDCS'03)
- S.
Xu and M. Yung. Retrofitting
Fairness on the Original RSA-Based E-Cash. Financial Cryptography'03.
- S.
Xu and R. Sandhu. Two Efficient and Provably Secure Schemes for
Server-Assisted Threshold Signatures. RSA-CT'03.
- Y. Dodis, J. Katz, S. Xu,
and M. Yung. Strong
Key-Insulated Signature Schemes. PKC'03.
- Y. Dodis, J. Katz, S. Xu, and
M. Yung. Key-Insulated
Public Key Cryptosystems. Eurocrypt'02.
- S.
Xu and M. Yung. The Dark Side
of Threshold Cryptography. Financial Cryptography'02.
- S.
Xu and R. Sandhu. Authenticated Multicast Immune to Denial-of-Service
Attacks. ACM SAC'02.
- S.
Xu, M. Yung, and G. Zhang. Friendly Observers Ease Off-Line E-Cash.
CARDIS'00.
- S.
Xu, M. Yung, and G. Zhang. Scalable,
Tax-Evasion Free, Anonymous Investing. IFIP SEC'00.
- S. Xu, M. Yung, G. Zhang,
and H. Zhu. Money
Conservation via Atomicity in Fair Off-Line E-Cash. ISW'99, LNCS 1729.
- S.
Xu, G. Zhang, and H. Zhu. Securing Systems Using
E-Cash. InfoSecu'99.
- S.
Xu, G. Zhang, and H. Zhu. Two Digital Signature
Schemes Based on Graph 3-Colorability Problem. ICYCS'99.
- S. Xu, H. Zhu, and G. Zhang.
Digital Signature Schemes Based on
Graph Isomorphism and Graph 3-Colorability Problems. CrypTEC'99.
- S.
Xu, G. Zhang, and H. Zhu. On the Security of
Three-Party Cryptogrpahic Protocols. ACM
Operating Systems Review, Vol. 32, No. 3, July 1998, pp 7-20.
- S.
Xu, G. Zhang, and H. Zhu. On the Security of Cryptogrpahic Protocols (Extended Abstract).
ChinaCrypt'98.
- S.
Xu, G. Zhang, and H. Zhu. On the Properties of Cryptogrpahic Protocols and the Weaknesses of BAN-Like
Logics. ACM Operating Systems Review, Vol. 31, No. 4, October 1997, pp
12-23.
- S. Xu, G. Zhang, H. Zhu et
al. A General Solution to the
Security Problems on the Internet/Intranet Platform. Proceedings of the
Sixth Chinese Symposium on Security and Privacy, 1997.
Other
Publications (in Chinese):
- S.
Xu. Studies in Digital Currency. PhD Thesis,
Dec. 1999, Department of Computer Science, Fudan
University, Shanghai, China.
- S.
Xu, G. Zhang, and H. Zhu. A Self-Delegation
System and the Knowledge Complexity of Problems. Journal of Software, Vol.
10, No. 2, February 1999, pp 170-174.
- S.
Xu and G. Zhang. Encryption Mechanism for
Routing Information Based on the Internet Protocol. Computer Research and
Development, Vol. 35, No. 8, August 1998, 753-759
- S.
Xu, G. Zhang, and H. Zhu. Recent Advances in
Modern Cryptography. NCYCS'98.
- S.
Xu and M. Hu. Security Strategy for Oracle-Based
Application Systems. Computer Engineering and Design, Vol. 18, No. 4,
April 1997, pp 43-38.
- S.
Xu and M. Hu. Prospects on Database Security.
Computer Engineering, Vol. 23, No. 3, March 1997, pp 50-53.
- S.
Xu and M. Hu. The Storage and Retrieve
Techniques for Object-Oriented Multimedia DataBase
Systems. Computer Engineering, Vol. 22, No. 5, May 1996, pp 14-17.
- S.
Xu and M. Hu. Database Based on Spatial Algebra.
Software, Vol. 4, No. 3, March 1996, pp 20-23.