Notes - MCS
Robust Software
Notes - MCS
Robust Software
  • Robust Software
  • Secure Software Design Principles
    • Motivation
    • Secure and Resilient/Robust Software
    • Best Practices for Resilient Applications
    • Designing Applications for Security and Resilience
    • Architecture for the Web/Cloud
  • Software Security Lifecycle
    • Motivation
    • Secure Development Lifecycle
    • Software Security Touchpoints
    • Software Assurance Forum for Excellence in Code (SAFECode)
    • Secure SW Lifecycle Processes Summary
    • Adaptations of the Secure Software Lifecycle
    • Assessing the Secure Software Lifecycle
    • Recommendations
  • Software Quality Attributes
    • Motivation
    • Software Quality Assurance
    • Software Quality Standards
    • Software Quality Attributes
    • Extra Software Quality Assurance Properties
  • Security Requirements
    • Motivation
    • Security Requirements
    • Threats
    • Defenses
    • Confidentiality
    • Integrity
    • Availability
    • What about other goals/properties?
    • Security Requirements Engineering
    • Types of Security Requirements
    • Security Policy
    • Precision
    • Completeness and Consistency
    • Examples of Non-Functional Requirements
    • Goals and Requirements
    • Measures
    • Requirements Interaction
    • Natural Language Requirements
    • Best Practices
  • Common Software Attacks
    • Objectives
    • 10 Major Cyber-Attacks of 21st Century
    • Software Security Basics
    • Defenses Methods
    • SANS SWAT Checklist
  • Safe Programming
    • Secure Coding Practices
    • Top 10 Secure Coding Practices (CERT/SEI)
    • 7 Pernitious Kingdoms
  • Robustness, PenTest, Fuzzy and Static Code Analysis
    • Security/Robustness Testing
    • Robustness Tests Checklist Example
    • Penetration Testing
    • Penetration Testing Roadmap
    • Tools
    • Fuzz Testing
    • Static Code Analysis
    • Side Channels
  • Safety (and Security)
    • Safety
    • A safety Lifecycle Example
    • Risk Management Process
    • System Definition
    • Hazard Identification and Classification
    • Desk-based Hazard Identification
    • Workshop-based Hazard Identification
    • HAZOP
    • Hazard Identification and Classification
      • Broadly acceptable risks
    • Risk Evaluation and Risk Acceptance
    • Use of codes of practice
    • Use of reference system
    • Explicit risk estimation
    • Qualitative risk estimation
    • Quantitative risk estimation
    • Safety measures
    • Safety requirements
    • Hazard Management
    • Hazard life cycle
    • Independent Assessment
    • Safety Plan
    • Safety Case
    • FMEA Example
    • DevSecOps
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  1. Safety (and Security)

Explicit risk estimation

Explicit risk estimation can be used where:

  • We are unable (or unwilling) to address the hazards via a code of practice or comparison with a reference system;

  • Deviations are necessary from codes of practice or reference systems;

  • We need to explicitly analyze the hazards and evaluate design principles or safety measures.

Explicit risk estimation is an assessment of the risks associated with hazard(s).

The risk is defined as a combination of:

  • The rate of the occurrence of the hazard causing harm (the frequency);

  • The degree of severity of the harm (the consequence).

Explicit risk estimation can be qualitative, semi-quantitative, or quantitative.

  • Depending on the availability of data and confidence in such data.

The methods used for explicit risk estimation shall reflect correctly the system under assessment and its parameters (including all operational modes).

The results shall be sufficiently accurate to provide a robust basis for decision-making.

Last updated 1 year ago