[PYTHON-CRYPTO] POW release - Python X509v3 DER encoder

[Peter Shannon]

Hello Everyone,

I've just released a new version of POW.  The main
change is the inclusion of a pure Python DER
encoding/decoding library I wrote to make it easier to
support v3 extensions.

Features:
     Certificates/CRLs can be created using either POW

     or POW.pkix(the python encoder).

     Extensions can be created using POW.pkix and if
     you look added to certificates/CRLs/revocations
     created using POW.

     Signing and verification(RSA only for the moment)

     is also available through both POW and POW.pkix.

I'll complete the PKIX profile soon but for now the
following extensions are supported:
     BasicConstraints
     SubjectAltName
     IssuerAltNam
     AuthorityKeyIdentifier
     PrivateKeyUsagePeriod
     CertificatePolicies
     CRLDistributionPoints
     SubjectKeyIdentifier
     KeyUsage
     CrlNumber
     DeltaCrlIndicator
     InvalidityDate
     CrlReason

If any of you find it useful but really don't want POW
with it I've no objection to moving it to a stand
alone module.

Let me know what you think.

Regards,

Peter Shannon

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