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Denial of service (DOS) attacks are a serious threat to network security. These attacks are often sourced from virtual machines in the cloud, rather than from the attacker's own machine, to achieve anonymity and higher network bandwidth. Past research focused on analyzing traffic on the destination (victim's) side with predefined thresholds. These approaches have significant disadvantages. They are...
Adding new hardware features to a cloud computing server requires testing both the functionality and the performance of the new hardware mechanisms. However, commonly used cloud computing server workloads are not well-represented by the SPEC integer and floating-point benchmark and Parsec suites typically used by the computer architecture community. Existing cloud benchmark suites for scale-out or...
Cloud customers need assurances regarding the security of their virtual machines (VMs) operating within an infrastructure-as-a-service cloud system. This is complicated by the customer not knowing where the VM is executing and by the semantic gap between what the customer wants to know versus what can be measured in the cloud. In this article, the authors present an architecture for monitoring a VM's...
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...
Dependability in cloud computing applications can be negatively affected by various attacks or service abuses. To come ahead of this threat, we propose an economic measure to deter attacks and various service abuses in cloud computing applications. Our proposed defense is based on requiring a service user to pay a small deposit, using digital currency, before invoking the service. Once they are done...
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