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End-to-end latency is critical to many distributed applications and services that are based on computer networks. There has been a dramatic push to adopt wireless networking technologies and protocols (such as WiFi, ZigBee, WirelessHART, Bluetooth, ISA100.11a, etc.) into time-critical applications. Examples of such applications include industrial automation, telecommunications, power utility, and...
Correctly functioning caches have been shown to leak critical secrets like encryption keys, through various types of cache side-channel attacks. This nullifies the security provided by strong encryption and allows confidentiality breaches, impersonation attacks and fake services. Hence, future cache designs must consider security, ideally without degrading performance and power efficiency. We introduce...
In this paper we present our vision for Security on Demand in cloud computing: a system where cloud providers can offer customized security for customers' code and data throughout the term of contract. Security on demand enables security-focussed competitive service differentiation and pricing, based on a threat model that matches the customer's security requirements for the virtual machine he is...
Hardware-software security architectures can significantly improve the security provided to computer users. However, we are lacking a security verification methodology that can provide design-time verification of the security properties provided by such architectures. While verification of an entire hardware-software security architecture is very difficult today, this paper proposes a methodology...
A waist belt type simple device was designed to monitor the individuals who are obese and want to maintain their consumed calories and waist circumference changes. Relatively long term monitoring with this device could help them maintain their health conditions. This devised system is composed of calorie tracking and waist circumference module. This study suggests feasible and meaningful results....
Cloud computing, enabled by virtualization technologies, is becoming a mainstream computing model. Many companies are starting to utilize the infrastructure-as-a-service (IaaS) cloud computing model, leasing guest virtual machines (VMs) from the infrastructure providers for economic reasons: to reduce their operating costs and to increase the flexibility of their own infrastructures. Yet, many companies...
The Instruction Set Architecure (ISA) of micro-processors is usually word oriented, so it is not optimized to perform bit level operations. A functional unit oriented to the bit manipulation could accelerate the computation increasing the microprocessor performance in terms of execution time. This work presents the experimental results of the integration between the Bit Manipulation Unit (BMU) described...
Many applications require protection of secret or sensitive information, from sensor nodes and embedded applications to large distributed systems. The confidentiality of data can be protected by encryption using symmetric-key ciphers, and the integrity of the data can be ensured by using a cryptographic hash function to calculate a "digital fingerprint." In this paper, we propose reconfigurable...
We present Bastion, a new hardware-software architecture for protecting security-critical software modules in an untrusted software stack. Our architecture is composed of enhanced microprocessor hardware and enhanced hypervisor software. Each trusted software module is provided with a secure, fine-grained memory compartment and its own secure persistent storage area. Bastion is the first architecture...
The shading processors in graphics hardware are becoming increasingly general-purpose. We test, through simulation and benchmarking, the potential performance impact of replacing these processors with a fully general-purpose parallel processor, without the fixed-function graphics hardware legacy of current graphics processing units (GPUs). The representative general-purpose processor we test against...
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