class twisted.conch.ssh._kex._DHGroupExchangeSHA1: (source)
Implements interfaces: twisted.conch.ssh._kex._IGroupExchangeKexAlgorithm
Diffie-Hellman Group and Key Exchange with SHA-1 as HASH. Defined in RFC 4419, 4.1.
| Class Variable | preference | An int giving the preference of the algorithm when negotiating key exchange. Algorithms with lower precedence values are more preferred. |