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BUSINESS POSTURE

This project, represented by the Disruptor library, aims to provide a high-performance inter-thread messaging solution for Java applications.

  • Business Priorities and Goals:

    • High Performance: The primary goal is to enable applications to achieve extremely low latency and high throughput in inter-thread communication.
    • Scalability: Facilitate the development of applications that can scale to handle increasing workloads and data volumes.
    • Reliability: Ensure robust and dependable message processing within applications.
    • Efficiency: Optimize resource utilization by minimizing overhead in inter-thread communication.

  • Business Risks:

    • Performance Bottlenecks: If not implemented correctly, the library might introduce performance bottlenecks instead of resolving them.
    • Integration Complexity: Integrating Disruptor into existing systems might introduce complexity and potential instability.
    • Operational Overhead: Misconfiguration or improper usage can lead to increased operational overhead and monitoring challenges.
    • Dependency Risk: Reliance on an external library introduces a dependency risk, including potential bugs or security vulnerabilities in the library itself.

SECURITY POSTURE

  • Existing Security Controls:

    • security control: Open Source Development: The project is open source, allowing for community review and scrutiny of the code. Implemented: GITHUB REPOSITORY.
    • security control: Code Review: Pull requests are likely reviewed by maintainers before merging. Implemented: GITHUB REPOSITORY - assumed based on typical open source project practices.
    • security control: Unit Testing: The project likely includes unit tests to ensure code correctness and prevent regressions. Implemented: GITHUB REPOSITORY - assumed based on typical software development practices.
    • security control: Static Analysis: Developers might use static analysis tools during development. Implemented: DEVELOPMENT ENVIRONMENT - assumed best practice.
    • accepted risk: Dependency Vulnerabilities: The project depends on other libraries, which might have vulnerabilities. Accepted risk: inherent to software development and dependency management.
    • accepted risk: No Formal Security Audit: There is no indication of a formal security audit being performed on the library. Accepted risk: typical for many open-source projects.

  • Recommended Security Controls:

    • security control: Dependency Scanning: Implement automated dependency scanning to identify and address vulnerabilities in third-party libraries used by Disruptor and projects using Disruptor.
    • security control: Security Focused Code Review: Incorporate security considerations into the code review process, specifically looking for common vulnerabilities (e.g., injection flaws, resource leaks).
    • security control: Vulnerability Disclosure Policy: Establish a clear vulnerability disclosure policy to allow security researchers to report potential issues responsibly.

  • Security Requirements:

    • Authentication: Not applicable directly to the library itself, as it's an inter-thread communication mechanism within an application. Authentication is the responsibility of the application using Disruptor.
    • Authorization: Not applicable directly to the library itself. Authorization is the responsibility of the application using Disruptor to control access to data and operations performed using the library.
    • Input Validation: While Disruptor itself handles internal data structures, applications using Disruptor must perform input validation on data that is processed or published through Disruptor to prevent injection attacks or data corruption. Implemented: APPLICATION USING DISRUPTOR.
    • Cryptography: Disruptor itself does not provide cryptographic functionality. If applications require encryption of data passed through Disruptor, it must be implemented by the application itself. Implemented: APPLICATION USING DISRUPTOR.

DESIGN

C4 CONTEXT

flowchart LR
    subgraph "Organization Context"
      style "Organization Context" fill:#f9f,stroke:#333,stroke-width:2px
      User[/"Developers & Applications"\nUsers of Disruptor Library/]
      Disruptor[/"Disruptor Library"\nHigh-Performance Inter-Thread Messaging/]
      JVM[/"Java Virtual Machine"\nRuntime Environment/]
      OperatingSystem[/"Operating System"\nUnderlying OS/]
    end
    User --> Disruptor
    Disruptor --> JVM
    JVM --> OperatingSystem
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  • Context Diagram Elements:
      • Name: Developers & Applications
      • Type: User
      • Description: Software developers who integrate the Disruptor library into their Java applications and the applications themselves that utilize Disruptor for inter-thread communication.
      • Responsibilities: Integrate and configure Disruptor within applications, handle data processing logic, manage application lifecycle.
      • Security controls: Application-level security controls, input validation, authorization, authentication, data encryption (if required).
      • Name: Disruptor Library
      • Type: System
      • Description: A high-performance, low-latency inter-thread messaging library written in Java.
      • Responsibilities: Provide efficient and reliable inter-thread communication mechanisms, manage data structures for message passing, offer APIs for developers to interact with.
      • Security controls: Code quality, vulnerability management of dependencies, adherence to secure coding practices.
      • Name: Java Virtual Machine (JVM)
      • Type: System
      • Description: The runtime environment for Java applications, providing memory management, execution environment, and platform independence.
      • Responsibilities: Execute Java bytecode, manage memory and resources, provide core Java libraries and functionalities.
      • Security controls: JVM security features (e.g., sandboxing, security manager), regular patching and updates.
      • Name: Operating System
      • Type: System
      • Description: The underlying operating system on which the JVM and applications are running, providing system resources and services.
      • Responsibilities: Manage hardware resources, provide system-level security, handle process management and networking.
      • Security controls: OS-level security controls (e.g., access control lists, firewalls, kernel hardening), regular patching and updates.

C4 CONTAINER

flowchart LR
    subgraph "Application Runtime"
      style "Application Runtime" fill:#ccf,stroke:#333,stroke-width:2px
      ApplicationCode[/"Application Code"\nJava Application Logic/]
      DisruptorLib[/"Disruptor Library"\nJAR File/]
    end
    ApplicationCode -- "Uses" --> DisruptorLib
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  • Container Diagram Elements:
      • Name: Application Code
      • Type: Container
      • Description: The custom Java code of the application that is being developed, which incorporates and utilizes the Disruptor library.
      • Responsibilities: Implement business logic, handle application-specific data processing, integrate with other application components and external systems.
      • Security controls: Application-level security controls, input validation, authorization, authentication, secure coding practices, vulnerability scanning.
      • Name: Disruptor Library
      • Type: Container
      • Description: The Disruptor library itself, packaged as a JAR file, which is included as a dependency in the application.
      • Responsibilities: Provide high-performance inter-thread messaging capabilities to the application.
      • Security controls: Dependency scanning, secure build process for the library, code quality within the library.

DEPLOYMENT

Disruptor is a library and is deployed as part of the application that uses it. The deployment architecture is determined by the application itself. A typical deployment scenario is described below.

flowchart LR
    subgraph "Deployment Environment"
      style "Deployment Environment" fill:#eee,stroke:#333,stroke-width:2px
        subgraph "Server Instance"
          style "Server Instance" fill:#ddd,stroke:#333,stroke-width:2px
          JVMRuntime[/"JVM Runtime"\nJava Virtual Machine/]
          ApplicationInstance[/"Application Instance"\nRunning Application with Disruptor/]
        end
    end
    ApplicationInstance --> JVMRuntime
    JVMRuntime --> OperatingSystemNode[/"Operating System"\nLinux/Windows Server/]
    OperatingSystemNode --> Hardware[/"Server Hardware"\nCPU, Memory, Network/]
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  • Deployment Diagram Elements:
      • Name: Server Hardware
      • Type: Infrastructure
      • Description: Physical or virtual server hardware providing the computational resources.
      • Responsibilities: Provide physical infrastructure, ensure hardware availability and reliability.
      • Security controls: Physical security of data centers, hardware security measures, secure configuration of hardware.
      • Name: Operating System
      • Type: Infrastructure
      • Description: The operating system running on the server hardware, providing system-level services.
      • Responsibilities: Manage hardware resources, provide system-level security, handle process management and networking.
      • Security controls: OS-level security controls (e.g., access control lists, firewalls, kernel hardening), regular patching and updates.
      • Name: JVM Runtime
      • Type: Container Runtime
      • Description: The Java Virtual Machine runtime environment executing the application.
      • Responsibilities: Execute Java bytecode, manage memory and resources for the application.
      • Security controls: JVM security features, regular patching and updates of JVM.
      • Name: Application Instance
      • Type: Container
      • Description: A running instance of the application that incorporates the Disruptor library.
      • Responsibilities: Execute application logic, utilize Disruptor for inter-thread communication, handle business processes.
      • Security controls: Application-level security controls, monitoring, logging, intrusion detection systems.

BUILD

flowchart LR
    subgraph "Developer Environment"
      style "Developer Environment" fill:#eee,stroke:#333,stroke-width:2px
      Developer[/"Developer"\nSoftware Engineer/]
      SourceCode[/"Source Code"\nDisruptor Code/]
    end
    subgraph "CI/CD Pipeline"
      style "CI/CD Pipeline" fill:#ddd,stroke:#333,stroke-width:2px
      CodeRepository[/"Code Repository"\nGitHub/]
      BuildServer[/"Build Server"\nGitHub Actions/Jenkins/]
      ArtifactRepository[/"Artifact Repository"\nMaven Central/]
    end
    Developer -- "Code Changes" --> CodeRepository
    CodeRepository -- "Build Trigger" --> BuildServer
    BuildServer -- "Build & Test" --> ArtifactRepository
    BuildServer -- "Security Checks (SAST, Dependency Scan)" --> ArtifactRepository
    ArtifactRepository -- "Disruptor JAR" --> UserApplications[/"User Applications"\nDependent Projects/]
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  • Build Process Elements:
      • Name: Developer
      • Type: Person
      • Description: Software engineers who contribute to the Disruptor project by writing and modifying code.
      • Responsibilities: Write code, perform local testing, commit code changes, participate in code reviews.
      • Security controls: Secure development workstations, code review participation, security awareness training.
      • Name: Source Code
      • Type: Data Store
      • Description: The source code of the Disruptor library, managed in a version control system.
      • Responsibilities: Store and manage source code, track changes, facilitate collaboration.
      • Security controls: Access control to code repository, branch protection, audit logging.
      • Name: Code Repository
      • Type: System
      • Description: A platform like GitHub hosting the Disruptor source code repository.
      • Responsibilities: Host source code, manage version control, facilitate pull requests and code reviews.
      • Security controls: Access control, authentication, authorization, audit logging, security scanning of the platform.
      • Name: Build Server
      • Type: System
      • Description: A CI/CD system like GitHub Actions or Jenkins that automates the build, test, and security check processes.
      • Responsibilities: Automate build process, compile code, run tests, perform static analysis and dependency scanning, package artifacts.
      • Security controls: Secure configuration of CI/CD pipeline, access control, secret management, build artifact integrity checks.
      • Name: Artifact Repository
      • Type: System
      • Description: A repository like Maven Central where built artifacts (JAR files) are published and stored.
      • Responsibilities: Store and distribute build artifacts, manage versions, provide access to artifacts for users.
      • Security controls: Access control, artifact integrity checks (e.g., signatures), vulnerability scanning of published artifacts.
      • Name: User Applications
      • Type: System
      • Description: Applications that depend on and use the Disruptor library, downloading the JAR artifact from the artifact repository.
      • Responsibilities: Integrate Disruptor library, utilize it for inter-thread communication in their applications.
      • Security controls: Dependency management, vulnerability scanning of dependencies, application-level security controls.

RISK ASSESSMENT

  • Critical Business Processes:

    • High-Performance Messaging: The core business process being protected is the ability to perform high-performance, low-latency inter-thread messaging within applications. Disruptor is designed to enhance this process.
    • Application Stability and Performance: Ensuring the stability and performance of applications that rely on Disruptor for critical operations.

  • Data Sensitivity:

    • Data processed by Disruptor: The sensitivity of data depends entirely on the application using Disruptor. Disruptor itself is agnostic to the data it processes. Data sensitivity can range from public information to highly confidential data, depending on the application's domain.
    • Metadata and Logs: Metadata related to Disruptor's operation and logs generated by applications using Disruptor might contain sensitive information depending on the application's logging practices.

QUESTIONS & ASSUMPTIONS

  • BUSINESS POSTURE:

    • Assumption: The primary business driver for using Disruptor is to achieve high performance and low latency in applications.
    • Question: What are the specific performance metrics (latency, throughput) that are critical for applications using Disruptor?
    • Question: What is the acceptable level of risk associated with adopting a third-party open-source library?

  • SECURITY POSTURE:

    • Assumption: Standard open-source development practices are followed, including code reviews and unit testing.
    • Question: Are there any formal security audits or penetration testing performed on the Disruptor library?
    • Question: Is there a documented vulnerability disclosure policy for the Disruptor project?

  • DESIGN:

    • Assumption: Disruptor is used as an embedded library within Java applications.
    • Question: Are there any specific deployment environments or constraints that need to be considered (e.g., containerized environments, cloud deployments)?
    • Question: What are the typical use cases and integration patterns for Disruptor in user applications?