# ``twisted`.`conch`.`ssh`.`_kex`.`_IFixedGroupKexAlgorithm``

interface documentation

`class _IFixedGroupKexAlgorithm(_IKexAlgorithm): (source)`

Known implementations: `twisted.conch.ssh._kex._DHGroup14SHA1`

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An `_IFixedGroupKexAlgorithm` describes a key exchange algorithm with a fixed prime / generator group.

Attribute | `generator` | An `int` giving the generator number used in Diffie-Hellman key exchange, or `None` if not applicable. (This is not related to Python generator functions.)
Attribute | `prime` | An `int` giving the prime number used in Diffie-Hellman key exchange, or `None` if not applicable.

Inherited from `_IKexAlgorithm`:

Attribute | `hashProcessor` | A callable hash algorithm constructor (e.g. `hashlib.sha256`) suitable for use with this key exchange algorithm.
Attribute | `preference` | An `int` giving the preference of the algorithm when negotiating key exchange. Algorithms with lower precedence values are more preferred.

generator = (source)
An `int` giving the generator number used in Diffie-Hellman key exchange, or `None` if not applicable. (This is not related to Python generator functions.)
prime = (source)
An `int` giving the prime number used in Diffie-Hellman key exchange, or `None` if not applicable.