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.. hazmat::
DSA
===
.. currentmodule:: cryptography.hazmat.primitives.asymmetric.dsa
`DSA`_ is a `public-key`_ algorithm for signing messages.
.. class:: DSAParameters(modulus, subgroup_order, generator)
.. versionadded:: 0.4
DSA Parameters are required for generating a DSA private key.
This class conforms to the
:class:`~cryptography.hazmat.primitives.interfaces.DSAParameters`
interface.
:raises TypeError: This is raised when the arguments are not all integers.
:raises ValueError: This is raised when the values of ``modulus``,
``subgroup_order``, or ``generator`` do
not match the bounds specified in `FIPS 186-4`_.
.. _`DSA`: https://en.wikipedia.org/wiki/Digital_Signature_Algorithm
.. _`public-key`: https://en.wikipedia.org/wiki/Public-key_cryptography
.. _`FIPS 186-4`: http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-4.pdf
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