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Encryption Facility for z/OS - Performance and Sizing

whitepaper As with all encryption, the choice of algorithm and whether that algorithm is supported by hardware is the significant consideration. This paper will discuss the factors that may affect performance of the Encryption Facility for z/OS tool, and...

Tags: mainframes

[11 May 2008]

On Dynamic Optimization of Packet Matching in High Speed Firewalls

whitepaper This paper presents a novel algorithm for maximizing early rejection of unwanted flows with minimal impact on other flows. Packet matching plays a critical role in the performance of many network devices and a tremendous amount of research has...

Tags: firewalls

[11 May 2008]

Adaptive Statistical Optimization Techniques for Firewall Packet Filtering

whitepaper This paper presents a novel algorithm for maximizing early rejection of unwanted flows without impacting other flows significantly. Packet filtering plays a critical role in the performance of many network devices such as firewalls, IPSec gateways...

Tags: security tools

[11 May 2008]

WS-SecurityPolicy Decision and Enforcement for Web Service Firewalls

whitepaper For this, a technical description and an algorithm is given addressing major parts of policy decision, as well as a proposal for enhancing message signature identification. A known weakness of Web Services is their vulnerability to Denial of...

Tags: firewalls

[11 May 2008]

Dynamic Response in Distributed Firewall Systems

whitepaper As an application of the anomaly discovery algorithm, this paper overview an autonomous defense system to counter Internet worms. Firewalls are currently the prominent defense against network attacks.

Tags: firewalls

[24 Apr 2008]

Optimizing Firewall Performance

whitepaper This paper found that there is no single best algorithm for every case. Therefore one needs to know all the alternatives to choose the right algorithm for the application at hand. Firewalls are one key factor in network performance.

Tags: firewalls

[11 Apr 2008]

Modeling and Evaluation of Certification Path Discovery in the Emerging Global PKI

whitepaper Establishing trust on certificates across multiple domains requires an efficient certification path discovery algorithm. Previously, small examples are used to analyze the performance of certification path discovery.

Tags: pki

[11 Apr 2008]

Formal Correctness of Conflict Detection for Firewalls

whitepaper This paper describes the formalization of a correctness proof for a conflict detection algorithm for firewalls in the Coq Proof Assistant. First, it gives formal definitions in Coq of a firewall access rule and of an access request to a firewall.

Tags: firewalls

[11 Apr 2008]

Low Cost Residual Phase Tracking Algorithm for OFDM-Based WLAN Systems

whitepaper It proposes a novel algorithm that uses an approximation instead of implementing the complex and vulnerable angle functions. This paper presents the design of an efficient low complexity orthogonal frequency division multiplexing receiver targeting...

Tags: wireless lan, complexity, frequency, low complexity

[10 Apr 2008]

Robust Timing Synchronization for OFDM Based Wireless LAN System

whitepaper This algorithm is a novel combination of self and cross correlation information to achieve symbol timing synchronization. The proposed algorithm can robustly detect the symbol boundary even under low SNRs, high frequency offset, and multipath.

Tags: wireless lan, frequency, frame, detection

[10 Apr 2008]

Load-Balancing Scatter Operations for Grid Computing

whitepaper The paper presents a general algorithm, which finds an optimal distribution of data across Processors, a quicker guaranteed heuristic relying on hypotheses on communications and computations and a policy on the ordering of the processors.

Tags: load balancing, processors, policy, algorithm

[10 Apr 2008]

The Discrete Logarithm Problem on Elliptic Curves of Trace One

whitepaper In this short note we describe an elementary technique, which leads to a linear algorithm for solving the discrete logarithm problem on elliptic curves of trace one. In practice the method described means that when choosing elliptic curves to use...

Tags: network security, curves, elliptic, algorithm

[10 Apr 2008]

UDT: An Application Level Transport Protocol for Grid Computing

whitepaper These problems are due to slow loss-recovery, a RTT bias inherent in its AIMD congestion-control algorithm, and the bursting data flow caused by its window control. As network bandwidth and delays increase, TCP becomes inefficient.

Tags: high performance computing, bandwidth, protocol, congestion

[10 Apr 2008]

On Predicated Execution

whitepaper We obtain an improved semantics for predicate operations together with an optimal and efficient algorithm for their use. Predicated execution as required in Modulo Scheduling technique for parallelizing innermost loops with conditional statements...

Tags: software engineering, execution, technique, optimal

[10 Apr 2008]

Linear Parallel Interference Cancellation in Long-Code CDMA Multiuser Detection

whitepaper It has previously been shown that the weighted multi-stage PIC can be seen as an implementation of the steepest descent algorithm used to minimize the mean squared error (MSE). Parallel interference cancellation (PIC) is a promising detection...

Tags: mobile - wireless communications, code, detection, error

[10 Apr 2008]

Integrating Enhanced IGRP Into Existing Networks

whitepaper When a network topology change occurs, the Diffusing Algorithm (DUAL) used with Enhanced IGRP provides convergence in less than five seconds in most cases. The Enhanced Interior Gateway Routing Protocol (IGRP) combines the ease of use of...

Tags: switching, protocols, routing, protocol

[10 Apr 2008]

Geographic Surveillance and HotspotDetection for Homeland Security: Disaster Management: Oil Spill Detection, Monitoring, and Prioritization

whitepaper The scan statistic hotspot delineation and poset prioritization tools will be used in combination with oil spill detection algorithm to provide for early warning and spatial-temporal monitoring of marine oil spills and their consequences.

Tags: network security, detection, oil, marine

[10 Apr 2008]

Intel Itanium Processor: High Performance on Security Algorithms (RSAD Encryption Kernel)

whitepaper RSA public-key algorithm than what we estimate current competitive processors can provide. The tremendous growth of the Internet has resulted in an explosion of e-Commerce Web sites. As e-Commerce continues to grow exponentially, security becomes a...

Tags: processors, processor, mhz, commerce

[10 Apr 2008]

Mime: A High Performance Storage Device With Strong Recovery Guarantees

whitepaper The first stage is a general algorithm, which uses incremental checkpoints and redoes logs to restore main memory data structures. This results in a simple design with stronger atomicity properties than a typical disk system, as well as a rollback...

Tags: hard drives, recovery, stage, operation

[10 Apr 2008]

OFDM Receiver Design

whitepaper Furthermore, since spatial diversity is the ultimate way to increase system capacity in bandwidth-cautious wireless applications, the SVD antenna-array processing algorithm is also implemented and will be integrated with the OFDM receiver.

Tags: modems, ofdm, implemented, receiver

[10 Apr 2008]

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