Displaying 1 result from an estimated 1 matches for "ssh_agent_constrain_extension".
2019 Dec 07
2
Agent protocol changes related to U2F/FIDO2 keys
I spent some time today implementing support for loading U2F keys into the SSH agent from my AsyncSSH library. I got it working, but along the way I ran into a few issues I wanted to report:
First, it looks like the value of SSH_AGENT_CONSTRAIN_EXTENSION has changed from the value 3 defined at https://tools.ietf.org/html/draft-miller-ssh-agent-02 <https://tools.ietf.org/html/draft-miller-ssh-agent-02> to the value 255 now, and somewhere along the way the constraint SSH_AGENT_CONSTRAIN_MAXSIGN was defined to use the value 3.
Second, https://r...