twisted.internet._sslverify._ChooseDiffieHellmanEllipticCurve

class documentation

class _ChooseDiffieHellmanEllipticCurve: (source)

Constructor: _ChooseDiffieHellmanEllipticCurve(openSSLVersion, openSSLlib, openSSLcrypto)

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Chooses the best elliptic curve for Elliptic Curve Diffie-Hellman key exchange, and provides a configureECDHCurve method to set the curve, when appropriate, on a new OpenSSL.SSL.Context.

The configureECDHCurve method will be set to one of the following based on the provided OpenSSL version and configuration:

Parameters
openSSLVersionThe OpenSSL version number.
openSSLlibThe OpenSSL cffi library module.
openSSLcryptoThe OpenSSL crypto module.
See Also
OpenSSL.SSL.OPENSSL_VERSION_NUMBER
crypto
Method __init__ Undocumented
Instance Variable configureECDHCurve Undocumented
Method _configureOpenSSL101 Set the default elliptic curve for ECDH on the context. Only run on OpenSSL 1.0.1.
Method _configureOpenSSL101NoCurves No elliptic curves are available on OpenSSL 1.0.1. We can't set anything, so do nothing.
Method _configureOpenSSL102 Have the context automatically choose elliptic curves for ECDH. Run on OpenSSL 1.0.2 and OpenSSL 1.1.0+, but only has an effect on OpenSSL 1.0.2.
Method _configureOpenSSL110 OpenSSL 1.1.0 Contexts are preconfigured with an optimal set of ECDH curves. This method does nothing.
Instance Variable _openSSLcrypto Undocumented
Instance Variable _openSSLlib Undocumented
def __init__(self, openSSLVersion, openSSLlib, openSSLcrypto): (source)

Undocumented

configureECDHCurve = (source)

Undocumented

def _configureOpenSSL101(self, ctx): (source)

Set the default elliptic curve for ECDH on the context. Only run on OpenSSL 1.0.1.

Parameters
ctx:OpenSSL.SSL.ContextThe context on which to set the ECDH curve.
def _configureOpenSSL101NoCurves(self, ctx): (source)

No elliptic curves are available on OpenSSL 1.0.1. We can't set anything, so do nothing.

Parameters
ctx:OpenSSL.SSL.ContextThe context on which to set the ECDH curve.
def _configureOpenSSL102(self, ctx): (source)

Have the context automatically choose elliptic curves for ECDH. Run on OpenSSL 1.0.2 and OpenSSL 1.1.0+, but only has an effect on OpenSSL 1.0.2.

Parameters
ctx:OpenSSL.SSL.ContextThe context which .
def _configureOpenSSL110(self, ctx): (source)

OpenSSL 1.1.0 Contexts are preconfigured with an optimal set of ECDH curves. This method does nothing.

Parameters
ctxOpenSSL.SSL.Context
_openSSLcrypto = (source)

Undocumented

_openSSLlib = (source)

Undocumented