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• Appendix F: SSH-2 names specified for PuTTY
  • F.1 Connection protocol global request name
  • F.2 Connection protocol channel request name
  • F.3 Key exchange method names
  • F.4 Encryption algorithm names

Appendix F: SSH-2 names specified for PuTTY

There are various parts of the SSH-2 protocol where things are specified using a textual name. Names ending in @putty.projects.tartarus.org are reserved for allocation by the PuTTY team. Allocated names are documented here.

F.1 Connection protocol global request name

This name can be sent in a SSH_MSG_GLOBAL_REQUEST message.

simple@putty.projects.tartarus.org

This is sent by a client to announce that it will not have more that one channel open at a time in the current connection. The intention is that the server, knowing this, can set the window on that one channel to something very large, and leave flow control to TCP. The format of the request is:

byte      SSH_MSG_GLOBAL_REQUEST
uint32    recipient channel
string    "simple@putty.projects.tartarus.org"
boolean   want reply

F.2 Connection protocol channel request name

This name can be sent in a SSH_MSG_CHANNEL_REQUEST message.

winadj@putty.projects.tartarus.org

PuTTY sends this request along with some SSH_MSG_CHANNEL_WINDOW_ADJUST messages as part of its window-size tuning. It can be sent on any type of channel. Servers MUST treat it as an unrecognised request and respond with SSH_MSG_CHANNEL_FAILURE.

F.3 Key exchange method names

rsa-sha1-draft-00@putty.projects.tartarus.org

rsa-sha256-draft-00@putty.projects.tartarus.org

rsa1024-sha1-draft-01@putty.projects.tartarus.org

rsa1024-sha256-draft-01@putty.projects.tartarus.org

rsa2048-sha256-draft-01@putty.projects.tartarus.org

rsa1024-sha1-draft-02@putty.projects.tartarus.org

rsa2048-sha512-draft-02@putty.projects.tartarus.org

rsa1024-sha1-draft-03@putty.projects.tartarus.org

rsa2048-sha256-draft-03@putty.projects.tartarus.org

rsa1024-sha1-draft-04@putty.projects.tartarus.org

rsa2048-sha256-draft-04@putty.projects.tartarus.org

These appeared in various drafts of what eventually became RFC 4432. They have been superseded by rsa1024-sha1 and rsa2048-sha256.

F.4 Encryption algorithm names

arcfour128-draft-00@putty.projects.tartarus.org

arcfour256-draft-00@putty.projects.tartarus.org

These were used in drafts of what eventually became RFC 4345. They have been superseded by arcfour128 and arcfour256.

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