class twisted.conch.ssh._kex._IGroupExchangeKexAlgorithm(_IKexAlgorithm): (source)
Known implementations: twisted.conch.ssh._kex._DHGroupExchangeSHA1, twisted.conch.ssh._kex._DHGroupExchangeSHA256
An _IGroupExchangeKexAlgorithm describes a key exchange algorithm that uses group exchange between the client and server.
A prime / generator group should be chosen at run time based on the requested size. See RFC 4419.
Inherited from _IKexAlgorithm:
| Attribute | preference | An int giving the preference of the algorithm when negotiating key exchange. Algorithms with lower precedence values are more preferred. |
| Attribute | hashProcessor | A callable hash algorithm constructor (e.g. hashlib.sha256) suitable for use with this key exchange algorithm. |