MaterialX

Projects that follow the best practices below can voluntarily self-certify and show that they've achieved an Open Source Security Foundation (OpenSSF) best practices badge.

If this is your project, please show your badge status on your project page! The badge status looks like this: Badge level for project 6025 is passing Here is how to embed it:

These are the Silver level criteria. You can also view the Passing or Gold level criteria.

        

 Basics 17/17 ●

  • Identification

    MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers.

  • Prerequisites


    Enough for a badge!

    The project MUST achieve a passing level badge. [achieve_passing]

  • Basic project website content


    Enough for a badge!

    The information on how to contribute MUST include the requirements for acceptable contributions (e.g., a reference to any required coding standard). (URL required) [contribution_requirements]

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/CONTRIBUTING.md


  • Project oversight


    Enough for a badge!

    The project SHOULD have a legal mechanism where all developers of non-trivial amounts of project software assert that they are legally authorized to make these contributions. The most common and easily-implemented approach for doing this is by using a Developer Certificate of Origin (DCO), where users add "signed-off-by" in their commits and the project links to the DCO website. However, this MAY be implemented as a Contributor License Agreement (CLA), or other legal mechanism. (URL required) [dco]

    The MaterialX project uses the EasyCLA system to maintain Contributor License Agreements for contributors, and does not require that users include a DCO in each commit:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/CONTRIBUTING.md


    Enough for a badge!

    The project MUST clearly define and document its project governance model (the way it makes decisions, including key roles). (URL required) [governance]

    The MaterialX project provides documentation of its governance model, including MaterialX TSC roles and current membership:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/GOVERNANCE.md


    Enough for a badge!

    The project MUST adopt a code of conduct and post it in a standard location. (URL required) [code_of_conduct]

    The MaterialX project inherits the standard code of conduct from the ASWF and Linux Foundation:

    https://lfprojects.org/policies/code-of-conduct/


    Enough for a badge!

    The project MUST clearly define and publicly document the key roles in the project and their responsibilities, including any tasks those roles must perform. It MUST be clear who has which role(s), though this might not be documented in the same way. (URL required) [roles_responsibilities]

    Documentation of project roles and their responsibilities may be found here:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/GOVERNANCE.md


    Enough for a badge!

    The project MUST be able to continue with minimal interruption if any one person dies, is incapacitated, or is otherwise unable or unwilling to continue support of the project. In particular, the project MUST be able to create and close issues, accept proposed changes, and release versions of software, within a week of confirmation of the loss of support from any one individual. This MAY be done by ensuring someone else has any necessary keys, passwords, and legal rights to continue the project. Individuals who run a FLOSS project MAY do this by providing keys in a lockbox and a will providing any needed legal rights (e.g., for DNS names). (URL required) [access_continuity]

    The MaterialX project has multiple developers with commit access to its GitHub repositories within the voting members of its TSC:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/GOVERNANCE.md


    Enough for a badge!

    The project SHOULD have a "bus factor" of 2 or more. (URL required) [bus_factor]

    The MaterialX project has multiple developers with MaterialX expertise and commit access within the voting members of its TSC:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/GOVERNANCE.md


  • Documentation


    Enough for a badge!

    The project MUST have a documented roadmap that describes what the project intends to do and not do for at least the next year. (URL required) [documentation_roadmap]

    The MaterialX project regularly presents its goals for MaterialX development across the industry at the yearly ASWF Open Source Days event, with slides and videos being shared with the community:

    https://materialx.org/assets/ASWF_OSD2024_MaterialX_Final.pdf


    Enough for a badge!

    The project MUST include documentation of the architecture (aka high-level design) of the software produced by the project. If the project does not produce software, select "not applicable" (N/A). (URL required) [documentation_architecture]

    The MaterialX specifications provide a high-level description of its design goals, and the ShaderGen and MaterialXView systems have their own developer documentation:

    https://www.materialx.org/Specification.html https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/documents/DeveloperGuide/ShaderGeneration.md https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/documents/DeveloperGuide/Viewer.md


    Enough for a badge!

    The project MUST document what the user can and cannot expect in terms of security from the software produced by the project (its "security requirements"). (URL required) [documentation_security]

    Documentation of security policies for the MaterialX project may be found here:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/SECURITY.md


    Enough for a badge!

    The project MUST provide a "quick start" guide for new users to help them quickly do something with the software. (URL required) [documentation_quick_start]

    The MaterialX project provides both pre-built binaries and a Quick Start for Developers section on its front page:

    https://github.com/AcademySoftwareFoundation/MaterialX#pre-built-binaries https://github.com/AcademySoftwareFoundation/MaterialX#quick-start-for-developers


    Enough for a badge!

    The project MUST make an effort to keep the documentation consistent with the current version of the project results (including software produced by the project). Any known documentation defects making it inconsistent MUST be fixed. If the documentation is generally current, but erroneously includes some older information that is no longer true, just treat that as a defect, then track and fix as usual. [documentation_current]

    The MaterialX project maintains its Developer Guide to match the latest version of the project:

    https://www.materialx.org/docs/api/index.html


    Enough for a badge!

    The project repository front page and/or website MUST identify and hyperlink to any achievements, including this best practices badge, within 48 hours of public recognition that the achievement has been attained. (URL required) [documentation_achievements]

    The MaterialX project has a hyperlink to its CII Best Practices status on its front page:

    https://github.com/AcademySoftwareFoundation/MaterialX


  • Accessibility and internationalization


    Enough for a badge!

    The project (both project sites and project results) SHOULD follow accessibility best practices so that persons with disabilities can still participate in the project and use the project results where it is reasonable to do so. [accessibility_best_practices]

    At its core MaterialX is a software library rather than a user-facing application, but we'll keep this goal in mind for any example applications that we publish.


    Enough for a badge!

    The software produced by the project SHOULD be internationalized to enable easy localization for the target audience's culture, region, or language. If internationalization (i18n) does not apply (e.g., the software doesn't generate text intended for end-users and doesn't sort human-readable text), select "not applicable" (N/A). [internationalization]

    The MaterialX project aims to support Unicode in all relevant contexts, though we believe this is an area where we can do better as we learn more about the environments in which the software will be used.


  • Other


    Enough for a badge!

    If the project sites (website, repository, and download URLs) store passwords for authentication of external users, the passwords MUST be stored as iterated hashes with a per-user salt by using a key stretching (iterated) algorithm (e.g., Argon2id, Bcrypt, Scrypt, or PBKDF2). If the project sites do not store passwords for this purpose, select "not applicable" (N/A). [sites_password_security]

    MaterialX uses GitHub for authenticating users who post issues or contributions to the project:

    https://github.com/AcademySoftwareFoundation/MaterialX


  • Previous versions


    Enough for a badge!

    The project MUST maintain the most often used older versions of the product or provide an upgrade path to newer versions. If the upgrade path is difficult, the project MUST document how to perform the upgrade (e.g., the interfaces that have changed and detailed suggested steps to help upgrade). [maintenance_or_update]

    The MaterialX project maintains all previous releases on GitHub, and we strive to provide developer documentation to simplify the upgrade process: https://github.com/AcademySoftwareFoundation/MaterialX/releases


  • Bug-reporting process


    Enough for a badge!

    The project MUST use an issue tracker for tracking individual issues. [report_tracker]

    MaterialX uses GitHub Issues for tracking bugs and feature requests: https://github.com/AcademySoftwareFoundation/MaterialX/issues


  • Vulnerability report process


    Enough for a badge!

    The project MUST give credit to the reporter(s) of all vulnerability reports resolved in the last 12 months, except for the reporter(s) who request anonymity. If there have been no vulnerabilities resolved in the last 12 months, select "not applicable" (N/A). (URL required) [vulnerability_report_credit]

    No such vulnerabilities have yet been reported or resolved, but we intend to document them in this way when the need arises.


    Enough for a badge!

    The project MUST have a documented process for responding to vulnerability reports. (URL required) [vulnerability_response_process]

    The MaterialX project documents its vulnerability report and response process here: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/SECURITY.md


  • Coding standards


    Enough for a badge!

    The project MUST identify the specific coding style guides for the primary languages it uses, and require that contributions generally comply with it. (URL required) [coding_standards]

    The MaterialX project documents its coding style in a clang-format file, which is described in the following documentation: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/CONTRIBUTING.md#coding-conventions


    Enough for a badge!

    The project MUST automatically enforce its selected coding style(s) if there is at least one FLOSS tool that can do so in the selected language(s). [coding_standards_enforced]

    The MaterialX project applies Clang Format to its codebase on each commit through GitHub Actions. This allows developers to access canonically-formatted code when needed, without gating pull requests to the repository based on coding style: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/.github/workflows/main.yml


  • Working build system


    Enough for a badge!

    Build systems for native binaries MUST honor the relevant compiler and linker (environment) variables passed in to them (e.g., CC, CFLAGS, CXX, CXXFLAGS, and LDFLAGS) and pass them to compiler and linker invocations. A build system MAY extend them with additional flags; it MUST NOT simply replace provided values with its own. If no native binaries are being generated, select "not applicable" (N/A). [build_standard_variables]

    The build system for MaterialX honors standard CMake flags.


    Enough for a badge!

    The build and installation system SHOULD preserve debugging information if they are requested in the relevant flags (e.g., "install -s" is not used). If there is no build or installation system (e.g., typical JavaScript libraries), select "not applicable" (N/A). [build_preserve_debug]

    The MaterialX build and installation system preserve debugging information when requested.


    Enough for a badge!

    The build system for the software produced by the project MUST NOT recursively build subdirectories if there are cross-dependencies in the subdirectories. If there is no build or installation system (e.g., typical JavaScript libraries), select "not applicable" (N/A). [build_non_recursive]

    The MaterialX project makes the dependencies between individual libraries explicit in its CMake files.


    Enough for a badge!

    The project MUST be able to repeat the process of generating information from source files and get exactly the same bit-for-bit result. If no building occurs (e.g., scripting languages where the source code is used directly instead of being compiled), select "not applicable" (N/A). [build_repeatable]

    The MaterialX build process is designed to be deterministic and repeatable.


  • Installation system


    Enough for a badge!

    The project MUST provide a way to easily install and uninstall the software produced by the project using a commonly-used convention. [installation_common]

    MaterialX uses the standard installation system in CMake.


    Enough for a badge!

    The installation system for end-users MUST honor standard conventions for selecting the location where built artifacts are written to at installation time. For example, if it installs files on a POSIX system it MUST honor the DESTDIR environment variable. If there is no installation system or no standard convention, select "not applicable" (N/A). [installation_standard_variables]

    MaterialX uses the standard installation system in CMake.


    Enough for a badge!

    The project MUST provide a way for potential developers to quickly install all the project results and support environment necessary to make changes, including the tests and test environment. This MUST be performed with a commonly-used convention. [installation_development_quick]

    MaterialX uses the standard installation system in CMake.


  • Externally-maintained components


    Enough for a badge!

    The project MUST list external dependencies in a computer-processable way. (URL required) [external_dependencies]

    The MaterialX project has no mandatory external dependencies, and it uses CMake to reference and include optional dependencies such as OIIO and OSL: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/source/MaterialXRender/CMakeLists.txt


    Enough for a badge!

    Projects MUST monitor or periodically check their external dependencies (including convenience copies) to detect known vulnerabilities, and fix exploitable vulnerabilities or verify them as unexploitable. [dependency_monitoring]

    The MaterialX project has no mandatory external dependencies, and it maintains awareness of the status of its optional dependencies.


    Enough for a badge!

    The project MUST either:
    1. make it easy to identify and update reused externally-maintained components; or
    2. use the standard components provided by the system or programming language.
    Then, if a vulnerability is found in a reused component, it will be easy to update that component. [updateable_reused_components]

    The MaterialX project uses standard components provided by the system and C++ programming language.


    Enough for a badge!

    The project SHOULD avoid using deprecated or obsolete functions and APIs where FLOSS alternatives are available in the set of technology it uses (its "technology stack") and to a supermajority of the users the project supports (so that users have ready access to the alternative). [interfaces_current]

    The MaterialX test suite enables warnings that check for the use of deprecated and obsolete functions in system APIs.


  • Automated test suite


    Enough for a badge!

    An automated test suite MUST be applied on each check-in to a shared repository for at least one branch. This test suite MUST produce a report on test success or failure. [automated_integration_testing]

    MaterialX uses GitHub actions to run its test suite on each commit to the repository, and the results are reported and visible on the front page: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/.github/workflows/main.yml


    Enough for a badge!

    The project MUST add regression tests to an automated test suite for at least 50% of the bugs fixed within the last six months. [regression_tests_added50]

    The MaterialX project adds regression tests when any significant bug is fixed, and these are included in the automated test suite.


    Enough for a badge!

    The project MUST have FLOSS automated test suite(s) that provide at least 80% statement coverage if there is at least one FLOSS tool that can measure this criterion in the selected language. [test_statement_coverage80]

    MaterialX uses GitHub Actions to run coverage analysis on its test suite with each commit to the repository, and the resulting coverage report is uploaded as a build artifact: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/.github/workflows/main.yml

    As of October 2023, the reported statement coverage is 88%, with the important caveat that MaterialX rendering functionality is not yet included, as we cannot yet run our full render test suite in GitHub Actions.


  • New functionality testing


    Enough for a badge!

    The project MUST have a formal written policy that as major new functionality is added, tests for the new functionality MUST be added to an automated test suite. [test_policy_mandated]

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/CONTRIBUTING.md#unit-tests


    Enough for a badge!

    The project MUST include, in its documented instructions for change proposals, the policy that tests are to be added for major new functionality. [tests_documented_added]

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/CONTRIBUTING.md#unit-tests


  • Warning flags


    Enough for a badge!

    Projects MUST be maximally strict with warnings in the software produced by the project, where practical. [warnings_strict]

    The MaterialX project enables all reasonable warnings in the automated test suite on GitHub Actions: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/.github/workflows/main.yml


  • Secure development knowledge


    Enough for a badge!

    The project MUST implement secure design principles (from "know_secure_design"), where applicable. If the project is not producing software, select "not applicable" (N/A). [implement_secure_design]

    The MaterialX project follows secure design principles where applicable.


  • Use basic good cryptographic practices

    Note that some software does not need to use cryptographic mechanisms. If your project produces software that (1) includes, activates, or enables encryption functionality, and (2) might be released from the United States (US) to outside the US or to a non-US-citizen, you may be legally required to take a few extra steps. Typically this just involves sending an email. For more information, see the encryption section of Understanding Open Source Technology & US Export Controls.

    Enough for a badge!

    The default security mechanisms within the software produced by the project MUST NOT depend on cryptographic algorithms or modes with known serious weaknesses (e.g., the SHA-1 cryptographic hash algorithm or the CBC mode in SSH). [crypto_weaknesses]

    MaterialX does not use cryptographic mechanisms.


    Enough for a badge!

    The project SHOULD support multiple cryptographic algorithms, so users can quickly switch if one is broken. Common symmetric key algorithms include AES, Twofish, and Serpent. Common cryptographic hash algorithm alternatives include SHA-2 (including SHA-224, SHA-256, SHA-384 AND SHA-512) and SHA-3. [crypto_algorithm_agility]

    MaterialX does not use cryptographic mechanisms.


    Enough for a badge!

    The project MUST support storing authentication credentials (such as passwords and dynamic tokens) and private cryptographic keys in files that are separate from other information (such as configuration files, databases, and logs), and permit users to update and replace them without code recompilation. If the project never processes authentication credentials and private cryptographic keys, select "not applicable" (N/A). [crypto_credential_agility]

    MaterialX does not process authentication credentials or private cryptographic keys.


    Enough for a badge!

    The software produced by the project SHOULD support secure protocols for all of its network communications, such as SSHv2 or later, TLS1.2 or later (HTTPS), IPsec, SFTP, and SNMPv3. Insecure protocols such as FTP, HTTP, telnet, SSLv3 or earlier, and SSHv1 SHOULD be disabled by default, and only enabled if the user specifically configures it. If the software produced by the project does not support network communications, select "not applicable" (N/A). [crypto_used_network]

    MaterialX does not directly support network communications.


    Enough for a badge!

    The software produced by the project SHOULD, if it supports or uses TLS, support at least TLS version 1.2. Note that the predecessor of TLS was called SSL. If the software does not use TLS, select "not applicable" (N/A). [crypto_tls12]

    MaterialX does not use TLS.


    Enough for a badge!

    The software produced by the project MUST, if it supports TLS, perform TLS certificate verification by default when using TLS, including on subresources. If the software does not use TLS, select "not applicable" (N/A). [crypto_certificate_verification]

    MaterialX does not use TLS.


    Enough for a badge!

    The software produced by the project MUST, if it supports TLS, perform certificate verification before sending HTTP headers with private information (such as secure cookies). If the software does not use TLS, select "not applicable" (N/A). [crypto_verification_private]

    MaterialX does not use TLS.


  • Secure release


    Enough for a badge!

    The project MUST cryptographically sign releases of the project results intended for widespread use, and there MUST be a documented process explaining to users how they can obtain the public signing keys and verify the signature(s). The private key for these signature(s) MUST NOT be on site(s) used to directly distribute the software to the public. If releases are not intended for widespread use, select "not applicable" (N/A). [signed_releases]

    The MaterialX project cryptographically signs releases using sigstore (https://www.sigstore.dev/), and the standard sigstore verification process (https://docs.sigstore.dev/verifying/verify/) may be used to confirm signed releases:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/.github/workflows/release.yml


    Barely enough for a badge.

    It is SUGGESTED that in the version control system, each important version tag (a tag that is part of a major release, minor release, or fixes publicly noted vulnerabilities) be cryptographically signed and verifiable as described in signed_releases. [version_tags_signed]

    Although this is a good goal for the future, the Academy Software Foundation does not currently require this of its Adopted projects:

    https://github.com/AcademySoftwareFoundation/tac/blob/main/process/lifecycle.md


  • Other security issues


    Enough for a badge!

    The project results MUST check all inputs from potentially untrusted sources to ensure they are valid (an *allowlist*), and reject invalid inputs, if there are any restrictions on the data at all. [input_validation]

    The MaterialX libraries are designed to check the validity of all input data.


    Enough for a badge!

    Hardening mechanisms SHOULD be used in the software produced by the project so that software defects are less likely to result in security vulnerabilities. [hardening]

    The MaterialX libraries use strict compilation warnings and static analysis to minimize the occurrence of software defects and security vulnerabilities:

    https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/CMakeLists.txt https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/.github/workflows/main.yml


    Not enough for a badge.

    The project MUST provide an assurance case that justifies why its security requirements are met. The assurance case MUST include: a description of the threat model, clear identification of trust boundaries, an argument that secure design principles have been applied, and an argument that common implementation security weaknesses have been countered. (URL required) [assurance_case]

    Although this is a good goal for the future, the Academy Software Foundation does not currently require this of its Adopted projects:

    https://github.com/AcademySoftwareFoundation/tac/blob/main/process/lifecycle.md


  • Static code analysis


    Enough for a badge!

    The project MUST use at least one static analysis tool with rules or approaches to look for common vulnerabilities in the analyzed language or environment, if there is at least one FLOSS tool that can implement this criterion in the selected language. [static_analysis_common_vulnerabilities]

    Both Cppcheck and PVS-Studio check for common software vulnerabilities in C++ code.


  • Dynamic code analysis


    Enough for a badge!

    If the software produced by the project includes software written using a memory-unsafe language (e.g., C or C++), then at least one dynamic tool (e.g., a fuzzer or web application scanner) MUST be routinely used in combination with a mechanism to detect memory safety problems such as buffer overwrites. If the project does not produce software written in a memory-unsafe language, choose "not applicable" (N/A). [dynamic_analysis_unsafe]

    The GitHub Actions workflow for MaterialX builds with Clang sanitizers and runs the unit test suite for each commit to the repository: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/.github/workflows/main.yml

    The unit test suite for MaterialX includes basic fuzz testing for its XML importer: https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/source/MaterialXTest/MaterialXFormat/XmlIo.cpp



This data is available under the Community Data License Agreement – Permissive, Version 2.0 (CDLA-Permissive-2.0). This means that a Data Recipient may share the Data, with or without modifications, so long as the Data Recipient makes available the text of this agreement with the shared Data. Please credit Jonathan Stone and the OpenSSF Best Practices badge contributors.

Project badge entry owned by: Jonathan Stone.
Entry created on 2022-05-03 23:27:45 UTC, last updated on 2024-09-13 17:23:41 UTC. Last achieved passing badge on 2022-05-07 23:51:11 UTC.

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