# ``twisted`.`conch`.`ssh`.`_kex`.`_DHGroupExchangeSHA256``

class documentation

`class _DHGroupExchangeSHA256: (source)`

Implements interfaces: `twisted.conch.ssh._kex._IGroupExchangeKexAlgorithm`

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Diffie-Hellman Group and Key Exchange with SHA-256 as HASH. Defined in RFC 4419, 4.2.

Class Variable | `preference` | An `int` giving the preference of the algorithm when negotiating key exchange. Algorithms with lower precedence values are more preferred.

preference: `int` = (source)
from `twisted.conch.ssh._kex._IKexAlgorithm`
An `int` giving the preference of the algorithm when negotiating key exchange. Algorithms with lower precedence values are more preferred.