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Patatt is a Python library and CLI for adding end-to-end cryptographic attestation to patches sent via email. It adapts the DKIM email signature standard to include cryptographic signatures via the X-Developer-Signature header.

If your project workflow doesn’t use patches sent via email, then you don’t need this and should simply start signing your tags and commits.

Features

  • DKIM-like signature headers that don’t corrupt patch content

  • Multiple signing algorithms: ed25519, OpenPGP, OpenSSH

  • In-repository keyring management via git refs

  • Automatic signing via git sendemail-validate hook

Installation

Install using pipx (recommended):

pipx install patatt

Or with pip:

pip install --user patatt

Quick Start

Generate a new ed25519 signing key:

patatt genkey

Sign a patch:

git format-patch -1 --stdout | patatt sign > signed.patch

Validate a signed patch:

patatt validate signed.patch

Documentation

Full documentation is available at https://patatt.docs.kernel.org

Contributing

Please send patches and support requests to tools@kernel.org.

Submissions must be made under the terms of the Linux Foundation certificate of contribution and should include a Signed-off-by line. See the DCO file for details.

Metadata

Release files for patatt 0.8.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

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Source distribution for patatt 0.8.0
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Table of built distributions (wheels) for patatt 0.8.0
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patatt-0.8.0-py3-none-any.whl Python 3 none any Details

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Release files / patatt-0.8.0.tar.gz

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Release files / patatt-0.8.0-py3-none-any.whl

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Uploaded via uv/0.11.28 {"installer":{"name":"uv","version":"0.11.28","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Fedora Linux","version":"44","id":"","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}

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