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https://github.com/theupdateframework/tuf

Python reference implementation of The Update Framework (TUF)
https://github.com/theupdateframework/tuf

cncf compromise key python repository revocation security software update

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Python reference implementation of The Update Framework (TUF)

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README 

        
# TUF A Framework for Securing Software Update Systems



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[![Docs](https://readthedocs.org/projects/theupdateframework/badge/)](https://theupdateframework.readthedocs.io/)

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----------------------------

[The Update Framework (TUF)](https://theupdateframework.io/) is a framework for

secure content delivery and updates. It protects against various types of

supply chain attacks and provides resilience to compromise. This repository is a

**reference implementation** written in Python. It is intended to conform to

version 1.0 of the [TUF

specification](https://theupdateframework.github.io/specification/latest/).



Python-TUF provides the following APIs:

  * [`tuf.api.metadata`](https://theupdateframework.readthedocs.io/en/latest/api/tuf.api.html),

    a "low-level" API, designed to provide easy and safe access to TUF

    metadata and to handle (de)serialization from/to files.

  * [`tuf.ngclient`](https://theupdateframework.readthedocs.io/en/latest/api/tuf.ngclient.html),

    a client implementation built on top of the metadata API.

  * `tuf.repository`, a repository library also built on top of the metadata

    API. This module is currently not considered part of python-tuf stable API.



The reference implementation strives to be a readable guide and demonstration

for those working on implementing TUF in their own languages, environments, or

update systems.



About The Update Framework

--------------------------

The Update Framework (TUF) design helps developers maintain the security of a

software update system, even against attackers that compromise the repository

or signing keys.

TUF provides a flexible

[specification](https://github.com/theupdateframework/specification/blob/master/tuf-spec.md)

defining functionality that developers can use in any software update system or

re-implement to fit their needs.



TUF is hosted by the [Linux Foundation](https://www.linuxfoundation.org/) as

part of the [Cloud Native Computing Foundation](https://www.cncf.io/) (CNCF)

and its design is [used in production](https://theupdateframework.io/adoptions/)

by various tech companies and open source organizations. A variant of TUF

called [Uptane](https://uptane.github.io/) is used to secure over-the-air

updates in automobiles.



Please see [TUF's website](https://theupdateframework.com/) for more information about TUF!



Documentation

-------------

* [Introduction to TUF's Design](https://theupdateframework.io/overview/)

* [The TUF Specification](https://theupdateframework.github.io/specification/latest/)

* [Developer documentation](https://theupdateframework.readthedocs.io/), including

  [API reference](

    https://theupdateframework.readthedocs.io/en/latest/api/api-reference.html) and [instructions for contributors](https://theupdateframework.readthedocs.io/en/latest/CONTRIBUTING.html)

* [Usage examples](https://github.com/theupdateframework/python-tuf/tree/develop/examples/)

* [Governance](https://github.com/theupdateframework/python-tuf/blob/develop/docs/GOVERNANCE.md)

and [Maintainers](https://github.com/theupdateframework/python-tuf/blob/develop/docs/MAINTAINERS.txt)

for the reference implementation

* [Miscellaneous Docs](https://github.com/theupdateframework/python-tuf/tree/develop/docs)

* [Python-TUF development blog](https://theupdateframework.github.io/python-tuf/)



Contact

-------

Questions, feedback, and suggestions are welcomed on our low volume [mailing

list](https://groups.google.com/forum/?fromgroups#!forum/theupdateframework) or

the [#tuf](https://cloud-native.slack.com/archives/C8NMD3QJ3) channel on [CNCF

Slack](https://slack.cncf.io/).



We strive to make the specification easy to implement, so if you come across

any inconsistencies or experience any difficulty, do let us know by sending an

email, or by reporting an issue in the GitHub [specification

repo](https://github.com/theupdateframework/specification/issues).



Security Issues and Bugs

------------------------



See [SECURITY.md](docs/SECURITY.md)



License

-------



This work is [dual-licensed](https://en.wikipedia.org/wiki/Multi-licensing) and

distributed under the (1) MIT License and (2) Apache License, Version 2.0.

Please see [LICENSE-MIT](https://github.com/theupdateframework/python-tuf/blob/develop/LICENSE-MIT)

and [LICENSE](https://github.com/theupdateframework/python-tuf/blob/develop/LICENSE).



Acknowledgements

----------------



This project is hosted by the Linux Foundation under the Cloud Native Computing

Foundation.  TUF's early development was managed by members of the [Secure

Systems Lab](https://ssl.engineering.nyu.edu/) at [New York

University](https://engineering.nyu.edu/). We appreciate the efforts of all

[maintainers and emeritus

maintainers](https://github.com/theupdateframework/python-tuf/blob/develop/docs/MAINTAINERS.txt),

as well as the contributors Konstantin Andrianov, Kairo de Araujo, Ivana

Atanasova, Geremy Condra, Zane Fisher, Pankhuri Goyal, Justin Samuel, Tian

Tian, Martin Vrachev and Yuyu Zheng who are among those who helped

significantly with TUF's reference implementation. Maintainers and Contributors

are governed by the [CNCF Community Code of

Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).



This material is based upon work supported by the National Science Foundation

under Grant Nos. CNS-1345049 and CNS-0959138. Any opinions, findings, and

conclusions or recommendations expressed in this material are those of the

author(s) and do not necessarily reflect the views of the National Science

Foundation.