Cloud-Trust - a Security Assessment Model for Infrastructure as a Service (IaaS) Clouds

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Cloud-Trust is a security assessment model for Infrastructure as a Service (IaaS) clouds that estimates high-level security metrics to quantify confidentiality and integrity. It assesses the security of four multi-tenant IaaS cloud architectures with different security controls. The probability of penetrating a cloud system (compromising high-value data) is high with minimal security controls, but drops substantially with a defense-in-depth architecture protecting VM images, strengthening access controls for administrators, and employing network security controls.

CLOUD-TRUST - A SECURITY
ASSESSMENT MODEL FOR
INFRASTRUCTURE AS A SERVICE
(IAAS) CLOUDS
Abstract
The vulnerability of Cloud Computing Systems (CCSs) to Advanced Persistent Threats
(APTs) is a significant concern to government and industry. We present a cloud architecture
reference model that incorporates a wide range of security controls and best practices, and a
cloud security assessment model – Cloud-Trust – that estimates high level security metrics to
quantify the degree of confidentiality and integrity offered by a CCS or cloud service provider
(CSP). Cloud-Trust is used to assess the security level of four multi-tenant IaaS cloud
architectures equipped with alternative cloud security controls and to show the probability of
CCS penetration (high value data compromise) is high if a minimal set of security controls are
implemented. CCS penetration probability drops substantially if a cloud defense in depth
security architecture is adopted that protects virtual machine (VM) images at rest, strengthens
CSP and cloud tenant system administrator access controls, and which employs other network
security controls to minimize cloud network surveillance and discovery of live VMs.

Cloud computing provides on-demand access to shared computing resources like servers, storage, databases, networking, software and analytics over the internet. It offers benefits like fast application deployment, reduced maintenance costs, better utilization of resources and scalability. Cloud services include infrastructure, platforms and software delivered on a pay-per-use model. Network access and security are important considerations for cloud computing given its reliance on internet connectivity and shared infrastructure.

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An efficient constant multiplier architecture based on vertical horizontal bi...

I3E Technologies

Aging aware reliable multiplier design with adaptive hold logic

I3E Technologies

A high performance fir filter architecture for fixed and reconfigurable appli...

I3E Technologies

A generalized algorithm and reconfigurable architecture for efficient and sca...

I3E Technologies

A combined sdc sdf architecture for normal i o pipelined radix-2 fft

I3E Technologies

Reverse converter design via parallel prefix adders novel components, method...

I3E Technologies

Pre encoded multipliers based on non-redundant radix-4 signed-digit encoding

I3E Technologies

Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...

I3E Technologies

Variable form carrier-based pwm for boost-voltage motor driver with a charge-...

I3E Technologies

Ultrasparse ac link converters

I3E Technologies

Single inductor dual-output buck–boost power factor correction converter

I3E Technologies

Ripple minimization through harmonic elimination in asymmetric interleaved mu...

I3E Technologies

Resonance analysis and soft switching design of isolated boost converter with...

I3E Technologies

Reliability evaluation of conventional and interleaved dc–dc boost converters

I3E Technologies

Power factor corrected zeta converter based improved power quality switched m...

I3E Technologies

The document describes a proposed switched mode power supply (SMPS) system that uses a front-end power factor corrected Zeta converter to improve power quality. The front-end converter reduces 100-Hz ripple and improves power factor and voltage regulation. Simulation and testing of a laboratory prototype showed the proposed SMPS enhanced performance under varying input voltages and loading conditions, meeting international power quality standards.

Pfc cuk converter fed bldc motor drive

I3E Technologies

Optimized operation of current fed dual active bridge dc dc converter for pv ...

I3E Technologies

This document discusses optimized operation of a current-fed dual active bridge DC-DC converter for photovoltaic applications. It analyzes the operating principle and soft-switching conditions over a wide operating range with phase shift and duty cycle control. An optimized operating mode is proposed to achieve minimum RMS transformer current and extend the soft-switching region to reduce losses. Experimental results from a 5 kW hardware prototype verify the analysis. Contact and location information is also provided for an organization that develops IEEE software and hardware projects.

Online variable topology type photovoltaic grid-connected inverter

I3E Technologies

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