I've got a new Yubikey NEO that I am trying to set up for SSH authentication.
I've already personalized the card and loaded the keys, following all the
creation rules (2048-bit max RSA, etc.) and loaded all the packages I am
supposed to load. However I can't make it work. My platform is AMD64 GNU/Linux
Ubuntu 16.04 running the Lubuntu flavor. I have tried it on two different
machines with this same configuration.
I have verified that I am not running ssh-agent or gnome-keyring, as I have
read these can interfere.
"ssh-agent -L" shows my key
I run
export GPG_TTY="$(tty)"
export SSH_AUTH_SOCK=/home/$USER/.gnupg/S.gpg-agent.ssh
gpg - connect - agent updatestartuptty /bye
I confirm that gpg-agent is running and that the auth sock environment variable
is pointing to the correct place.
gpg-agent.conf is:
default-cache-ttl 36000
pinentry-program /usr/bin/pinentry-gtk-2
no-grab
enable-ssh-support
(tried disabling no-grab, no difference)
scdaemon.conf:
reader-port "Yubico Yubikey NEO OTP CCID 00 00"
card-timeout 1
(these don't make a difference, but some threads said to try it. it does same
thing without the scdaemon options)
I turned on debugging, here is a dump of attempting to connect via SSH:
@:~$ ssh -I /usr/lib/x86_64-linux-gnu/opensc-pkcs11.so
@
no slots
gpg-agent[24850]: ssh handler 0x7fa474d1a700 for fd 5 started
gpg-agent[24850]: ssh request handler for request_identities (11) started
gpg-agent[24850]: new connection to SCdaemon established (reusing)
gpg-agent[24850]: DBG: chan_6 -> GETATTR $AUTHKEYID
gpg-agent[24850]: DBG: chan_6 <- S $AUTHKEYID OPENPGP.3
gpg-agent[24850]: DBG: chan_6 <- OK
gpg-agent[24850]: DBG: chan_6 -> GETATTR SERIALNO
gpg-agent[24850]: DBG: chan_6 <- S SERIALNO
gpg-agent[24850]: DBG: chan_6 <- OK
gpg-agent[24850]: DBG: chan_6 -> READKEY OPENPGP.3
gpg-agent[24850]: DBG: chan_6 <- [ ...(286 byte(s) skipped) ]
gpg-agent[24850]: DBG: chan_6 <- OK
gpg-agent[24850]: DBG: chan_6 -> GETATTR $DISPSERIALNO
gpg-agent[24850]: DBG: chan_6 <- S $DISPSERIALNO
gpg-agent[24850]: DBG: chan_6 <- OK
gpg-agent[24850]: ssh request handler for request_identities (11) ready
gpg-agent[24850]: ssh request handler for sign_request (13) started
gpg-agent[24850]: DBG: chan_6 -> SERIALNO
gpg-agent[24850]: DBG: chan_6 <- S SERIALNO 0
gpg-agent[24850]: DBG: chan_6 <- OK
gpg-agent[24850]: DBG: detected card with S/N
gpg-agent[24850]: DBG: encoded hash:
gpg-agent[24850]: DBG: chan_6 -> SETDATA
gpg-agent[24850]: DBG: chan_6 <- OK
gpg-agent[24850]: DBG: chan_6 -> PKAUTH OPENPGP.3
gpg-agent[24850]: DBG: chan_6 <- INQUIRE NEEDPIN ||Please enter the PIN
gpg-agent[24850]: starting a new PIN Entry
gpg-agent[24850]: DBG: connection to PIN entry established
gpg-agent[24850]: handler 0x7fa46f7fe700 for fd 10 started
gpg-agent[24850]: DBG: chan_10 -> OK Pleased to meet you, process 24850
gpg-agent[24850]: DBG: chan_8 <- OK Pleased to meet you, process 24850
gpg-agent[24850]: DBG: chan_8 -> GETINFO pid
gpg-agent[24850]: DBG: chan_10 <- GETINFO pid
gpg-agent[24850]: DBG: chan_10 -> D 24850
gpg-agent[24850]: DBG: chan_10 -> OK
gpg-agent[24850]: DBG: chan_8 <- D 24850
gpg-agent[24850]: DBG: chan_8 <- OK
gpg-agent[24850]: DBG: chan_8 -> BYE
gpg-agent[24850]: DBG: chan_10 <- BYE
gpg-agent[24850]: DBG: chan_10 -> OK closing connection
gpg-agent[24850]: handler 0x7fa46f7fe700 for fd 10 terminated
gpg-agent[24850]: DBG: chan_6 -> [ ...(76 byte(s) skipped) ]
gpg-agent[24850]: DBG: chan_6 -> END
gpg-agent[24850]: DBG: chan_6 <- ERR 100663404 Card error
gpg-agent[24850]: smartcard signing failed: Card error
gpg-agent[24850]: ssh sign request failed: Card error
gpg-agent[24850]: ssh request handler for sign_request (13) ready
sign_and_send_pubkey: signing failed: agent refused operation
@'s password:
As you can see, PIN entry works correctly, but after this everything fails with
an error 100663404 and returns "signing failed: agent refused operation"
I have Googled this extensively and have tried everything I can find to try to
resolve this, but I've run out of things to try.
Please help,
LL
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