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Record W4205995943 · doi:10.22215/etd/2021-14669

A Data-Driven Approach to Evaluate the Security of System Designs

2021· dissertation· en· W4205995943 on OpenAlexaff
Joe Samuel

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldComputer Science
TopicInformation and Cyber Security
Canadian institutionsCarleton University
Fundersnot available
KeywordsAttack surfaceLeverage (statistics)Computer scienceSecurity testingSoftware security assuranceComputer security modelSecurity information and event managementComputer securityMetric (unit)Security serviceApplication securityCloud computing securityInformation securityEngineering

Abstract

fetched live from OpenAlex

Improving system security during the design phase is challenging but can be costeffective in the long run.Security metrics are a way to measure and manage a system's ability to minimize possible attack opportunities.While several designlevel security metrics exist to evaluate vulnerabilities in system design, it is unclear which metrics provide a sound scientific basis for their characterization.Lack of security knowledge among average development teams and the lack of tool support are additional challenges.In this work, we present a data-driven approach for the security evaluation of system designs to address the above challenges.The approach aims to incrementally improve system security and decision-making at design time.We integrate the attack surface metric which we found to be sound in our evaluation of widely-used security metrics and leverage external data sources to characterize the structural security posture of software systems.Several tools are developed to automate the approach.This work began with an ambitious vision to help organizations develop secure systems and to provide tools that they can use to apply our findings.This work would not have been possible in such a short time frame without the unwavering support, encouragement, and guidance from my supervisor Professor Jason Jaskolka.I also express my deepest gratitude to Professor George Yee who volunteered to collaborate on this work and whose input and guidance played a pivotal role in the success of this work.I also thank Andrew Pullin who helped us make Compass toolkit a reality.I express my sincere gratitude to Professor James Green who played a critical role in advancing my research career.His willingness to enable me to explore and apply my ideas, however ambitious they may be, allowed me to further my learning and impact the community in more ways than one.I

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.015
metaresearch head score (Gemma)0.050
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.015
Threshold uncertainty score0.077

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0150.050
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0070.003
Science and technology studies0.0010.002
Scholarly communication0.0050.005
Open science0.0030.002
Research integrity0.0010.003
Insufficient payload (model declined to judge)0.0060.002

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.062
GPT teacher head0.305
Teacher spread0.243 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2021
Admission routes1
Has abstractyes

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