A simple library to add cryptographic attestation to patches sent via email
Project description
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.
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