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ARC4 vector creation
====================

This page documents the code that was used to generate the ARC4 test
vectors for key lengths not available in RFC 6229. All the vectors
were generated using OpenSSL and verified with Go.

Creation
--------

``cryptography`` was modified to support ARC4 key lengths not listed
in RFC 6229. Then the following Python script was run to generate the
vector files.

.. literalinclude:: /development/custom-vectors/arc4/generate_arc4.py

Download link: :download:`generate_arc4.py
</development/custom-vectors/arc4/generate_arc4.py>`


Verification
------------

The following Go code was used to verify the vectors.

.. literalinclude:: /development/custom-vectors/arc4/verify_arc4.go
    :language: go

Download link: :download:`verify_arc4.go
</development/custom-vectors/arc4/verify_arc4.go>`

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