First Glance: An Introductory Analysis of Network Forensics of Tor

The Tor network is a low-latency overlay network for TCP flows that is designed to provide privacy and anonymity to its users. It is currently in use by many as a means to avoid censorship of both information to be shared and information to be retrieved. This paper details the architecture of the Tor network as a platform for evaluating the current state of forensic analysis of the Tor network. Specific attempts to block access to the Tor network are examined to identify (a) the processes utilized to identify Tor nodes, and (b) the resulting exposure of potentially inculpatory evidence. Additional known, but yet to be perpetrated, attacks are examined for a more holistic view of the state of forensics of the Tor network. Based on the combination of these studies, there is some evidence that a specific, individual flow of traffic over the Tor network is attributable to a single entity. However, the content of that flow has not been compromised within the Tor network. As such, the inculpatory evidence required for legal action is limited at this time. Keywords: Tor, Forensic Analysis, Privacy & Anonymit

Work in Progress: An Architecture for Network Path Reconstruction via Backtraced OSPF LSDB Synchronization

There has been extensive work in crime scene reconstruction of physical locations, and much is known in terms of digital forensics of computing devices. However, the network has remained a nebulous combination of entities that are largely ignored during an investigation due to the transient nature of the data that flows through the networks. This paper introduces an architecture for network path reconstruction using the network layer reachability information shared via OSPF Link State Advertisements and the routines and functions of OSPF::rt_sched() as applied to the construction of identical Link State Databases for all routers within an Area

Simulating Radiative Magnetohydrodynamical Flows with AstroBEAR: Implementation and Applications of Non-equilibrium Cooling

Radiative cooling plays a crucial role in the dynamics of many astrophysical flows, and is particularly important in the dense shocked gas within Herbig-Haro (HH) objects and stellar jets. Simulating cooling processes accurately is necessary to compare numerical simulations with existing and planned observations of HH objects, such as those from the Hubble Space Telescope and the James Webb Space Telescope. In this paper we discuss a new, non-equilibrium cooling scheme we have implemented into the 3-D magnetohydrodynamic (MHD) code AstroBEAR. The new cooling function includes ionization, recombination, and excitation of all the important atomic species that cool below 10000 K. We tested the routine by comparing its predictions with those from the well-tested 1-D Cox-Raymond shock code (Raymond 1979). The results show thatAstroBEAR accurately tracks the ionization fraction, temperature, and other MHD variables for all low-velocity (.90 km/s) magnetized radiative shock waves. The new routine allows us to predict synthetic emission maps in all the bright forbidden and permitted lines observed in stellar jets, including H{\alpha}, [NII], [OI], and [SII]. We present an example as to how these synthetic maps facilitate a direct comparison with narrowband images of HH objects.Comment: 8 figure

Verification of Recovered Digital Evidence on the Amazon Kindle

The Amazon Kindle is a popular e-book reader. This popularity will lead criminals to use the Kindle as an accessory to their crime. Very few Kindle publications in the digital forensics domain exist at the time of this writing. Various blogs on the Internet currently provide some of the foundation for Kindle forensics. For this research each fifth generation Kindle was populated with various types of files a typical user may introduce using one method, the USB interface. The Kindle was forensically imaged with AccessData’s Forensic Toolkit Imager before and after each Kindle was populated. Each file was deleted through the USB interface. Files were retrieved and recovered through the USB interface before and after file deletion. These two sets of files were compared to the original set of files. All files retrieved before deletion matched their original counterpart. Not all files recovered after deletion matched their original counterpart. These steps and procedures followed a similar adaptation of the NIST General Test Methodology for Computer Forensic Tools developed by Leshney (2008) for virtual machines

Market Maker for Iowa

Use of a web-based program can help Iowa producers pick and choose the best national markets for their products

High-tunnel resource manual and producer resource kit providing the tools for profitability

Producers interested in high tunnel production received instructions and guidance on how to operate these structures successfully

Building the Iowa wine culture through improved quality

Iowa’s first “State of the Viticulture Industry” quality report was prepared by the ISU Extension Value Added Agriculture Program and the Midwest Grape and Wine Industry Institute to identify quality benchmarks for the industry

Strategies to effectively promote and market on-farm retail enterprises

Agritourism offers consumers the opportunity to purchase locally grown food on the farm along with the educational experience of learning about food production. This project was designed to help energize Iowa\u27s agritourism industry

Tunnels to tables: High tunnel production and distribution model for produce

High tunnel facilities offer a production alternative for specialty crop farmers, but also require a new set of management skills and tactics