The best answers are voted up and rise to the top, Not the answer you're looking for? I faced this problem after migrating Ubuntu from 16.04 LTS to 18.04 LTS, this solution worked for me. If I plug in my Yubikey 5 key it works. /var/log/messages to Dominik George : Long story short: the fix in my case was just to make sure that the public key file was named as expected. sign_and_send_pubkey: signing failed: agent refused operationHelpful? I can only guess that it was caused by mistyping the passphrase at first use some time earlier, and then probably cancelling the requester or so in order to fall back to command line. Renaming my key files to username_at_organization fixed the problem. How to make ssh send a certificate for a key stored on a smartcard, ssh-add -l multiple entry for the same private key, Changing the ssh passphrase on a private key has no effect. Asking for help, clarification, or responding to other answers. Some of them could be related to the issues highlighted by the other answers (see this thread answers), some of them could be hidden and thus would require a closer investigation. WebSymptoms: Resolution: GnuPG Installation Configuration Home directory Configuration files Default options for new users Usage Create a key pair List keys Export your public key Import a public key Use a keyserver Sending keys Searching and receiving keys Key servers Web Key Directory Encrypt and decrypt Asymmetric Symmetric Directory Check your ~/.ssh and ~/.ssh/id_rsa* permissions. I have disabled password logins for all the "remote" machines, so I wanted to use the old machine as an intermediate. Can a VGA monitor be connected to parallel port? Right I have the exact same error inside MacOSX SourceTree, however, inside a iTerm2 terminal, things work just dandy. The problem is that the ssh agent doesnt like the @ character. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Alternate between 0 and 180 shift at regular intervals for a sine source during a .tran operation on LTspice. It only takes a minute to sign up. When I run ssh-copy-id this is what I get: However, when I then attempt to ssh in, this happens: Upon entering the password, I am logged in just fine, but this of course defeats the purpose of creating the SSH key in the first place. Thank you so much! Run ssh-add on the client machine, that will add the SSH key to the agent. I read through various posts on this topic, but none of the solutions worked for me. I am getting this problem consistently. created a new rsa key, public added to authorized, private on client, and everything works perfectly. The way to solve it is to make sure that you have the correct permission on the id_rsa and id_rsa. Then repeat command ssh-copy-id userserver@012.345.67.89. rev2023.2.28.43265. Make sure the permissions of the key directory and keys are correct on the client. signing failed: agent refused operation Permission denied (publickey). Antec has the Private key Dell-9010 has the Public key. The keys has been created some time ago with plain "ssh-keygen -t rsa" you may get the error Yes, it would be excellent to get your feedback, thx ! Of course, now I have set up all my systems to use ed25519-sk keys instead but at least I can use it for email and files. Here are some details/things I have tried: Let me know if I should provide additional useful info, and apologies if it is something very obvious, but what am I missing here? Ownership and permissions of the cert files is already correct. Copy sent to Debian GnuPG Maintainers . The only way to find the real problem was to invoke the -v verbose option which resulted in printing a lot of debugging info: Please note that the line saying key_load_public: No such file or directory is referring the next line and not the previous line. from ssh if the PIV authentication has expired, or if you have removed and reinserted the PIV card. put my system in swap or kill com.apple.ctkpcscd. Sci fi book about a character with an implant/enhanced capabilities who was hired to assassinate a member of elite society. to Daniel Kahn Gillmor : what a stupid error message is that then from the SSH communication!!! It should be 600 for id_rsa and 644 for id_rsa.pub. Renaming my key files to username_at_organization fixed the problem. Acknowledgement sent Slot 9c by default requires PIN verification every time the key is used, and I suspect that ssh-agent doesn't support that. gnome-keyring does not support the generated key. Bug acknowledged by developer. To sum up my steps from that example, where debian is the machine with the new key-pair, sarp.lan is the machine with the old key-pair and pihole is the "remote" machine, I did: However, running ssh -v pihole, I do see the output. After spending indecent amount of time troubleshooting this issue I ran seahorse and found the entry to hold empty string. Not that the code is just a draft to test if this approach has any merit. Then I installed openssh:8.8p1 again via Homebrew and after rebooting, problem was still present. I think 2.3.0 release solved this issue! Confirm with ssh-add -l (again on the client) that it was indeed added. This used to work fine through gpg-agent. If you are using SSH with Smart Card (PIV), and adding the card to ssh-agent with To my knowledge, this is all correct. WebUbuntussh:sign_and_send_pubkey: signing failed: agent refused operationsign_and_send_pubkey: signing failed: agent refused operationssh0 Linux To first start the ssh agent ssh-add If you get a chance @alexeyantropov, can you run your same test but with export YKCS11_DBG=1? If you have more than one key pair, you may be using ssh-keygen with the -f to name the output files. (Sat, 14 Jan 2017 23:27:04 GMT) (full text, mbox, link). Copy sent to Debian GnuPG Maintainers . YubiKeys are physical authentication devices from Yubico! While researching this, I found the exact situation given as an example in the manual page for ssh-copy-id. You signed in with another tab or window. To first start the ssh agent. But one little question, could you build a lib? WebMemcached Java2.6.1. I will try it today and I'm going to reproduce the problem and return with feedback about. 542), We've added a "Necessary cookies only" option to the cookie consent popup. Thanks for contributing an answer to Unix & Linux Stack Exchange! But still no luck in getting SSH connection to Server2 from Server1. I got a sign_and_send_pubkey: signing failed: agent refused operation error as well. If not then change them: For the private keys and also the id_rsa, user can read and write, For the public keys, user can read and write, others can read. To me the problem is consistent, including high-end iMac and iMac Pro (10 and 20 physical cores correspondingly, 64 GB RAM each). WebInteresting issue with Yubikey GPG SSH authentication (sign_and_send_pubkey: signing failed for ED25519 agent refused operation) 5 12 r/pop_os Join 2 mo. Extra info received and forwarded to list. No further changes may be made. Permissions 0640 for '/home//.ssh/id_rsa' are too open. The best answers are voted up and rise to the top, Not the answer you're looking for? Why is the article "the" used in "He invented THE slide rule"? Extra info received and forwarded to list. Thank You. Thought I had everything set-up correctly, but I guess not. I wanted to find a convenient way to copy this new key-pair to various other machines using my old Ubuntu machine and its key-pair. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. sign_and_send_pubkey: signing failed: agent refused operationHelpful? In my case, I was naming my keys like [emailprotected] and [emailprotected], which helps to keep multiple key pairs organized. In that case, if you try to do another ssh-add -s you will still get an error: In the mean time it is quite painless to build yourself on mac, I use that as my main dev platform. I've been running into this all day today and this fixed it!!! if libykcs11.dylib added into agent, like ssh-add -s libykcs11.dylib - ssh connection always fails with: If remove this via ssh-add -D its ok, but - is there a way to use pin from keychain? By clicking Sign up for GitHub, you agree to our terms of service and ykcs11: 'agent refused operation' after doing any operations on yubikey, https://developers.yubico.com/PIV/Guides/SSH_user_certificates.html, bump openssl to 1.0.2l, fix issues #88, #102 and #116. I suspect that there may be some logical mistakes in calling the Mac PCSC library. ssh-add -l will show the key as present, but I still get the above error. Thank you. error message is not pointing actual issue. Websign_and_send_pubkey: signing failed: agent refused operation sign,send,pubkey,signing,failed Error:Jack is required to support java 8 language features. Console three after some time (between MARK TWO and MARK THREE), I'm on the remote host and usging agent forwarding: Command "ssh-add -l" always gives same results (during normal work and after failure). I need to share, as I spent too much time looking for a solution, Here was the solution : https://unix.stackexchange.com/a/351742/215375. that needs auth., immediately after that 1st attempt, would fail with error described in this issue's title: see Yubico/libfido2#464). Post by Reljoy Mon Jun 10, 2019 8:21 am. If anyone can help me getting through this would be great. Message #10 received at 851440@bugs.debian.org (full text, mbox, reply): Information forwarded sign_and_send_pubkey: signing failed: agent refused operation. Well, it's 64 GB and 10 physical CPU cores. #332. 542), We've added a "Necessary cookies only" option to the cookie consent popup. If so it has nothing to do with yubico-piv-tool (or libykcs11). Finally figured out with libykcs11.dylib and i didn't understand some things: Report forwarded yubikey - ssh PIV error "sign_and_send_pubkey: signing failed for RSA "Public key for Digital Signature": agent refused operation" - Server Fault ssh PIV error Updating the entry with correct passphrase immediately solved the problem. WebRegardless if I first try the ssh-add test first or not, when I try to ssh into the server, I get "debug1: Server accepts key: [CN]-cert.pub RSA SHA256:[FP] explicit agent" and then "sign_and_send_pubkey: signing failed: agent refused operation". debug: ykcs11.c:1947 (C_Sign): Sign error, Error in PCSC call (Thu, 19 Jan 2017 18:39:03 GMT) (full text, mbox, link). So after disabling OS default ssh-agent and following through the blog, my issue is gone and consecutive attempts to use SSH resident keys on Yubikey work as before ( I always get prompted to enter PIN, confirm presence, etc.). Thanks! after upgrading to openssh 8.9p1-1 my ssh client is no longer able to authenticate using my yubikey. Check the current chmod number by using stat --format '%a' . https://1password.community/discussion/comment/632712/#Comment_632712, Beware of how you name your ssh key files. Issue resolved by. When the issue is not access rights below ~/.ssh (as your detailed listing indicates), another option might be that the authentication agent is somehow hanging. Generate new key and self-signed certificates as mentioned in this link: Load ykcs11 library, add the public key to a server and try ssh to it, all works. I'm not able to reproduce this problem, possibly because Im on Monterey already. I suspect that the problem was caused by having an invalid pin entry tty for gpg caused by my sleep+lock command used in my sway config, bindsym $mod+Shift+l exec "sh -c 'gpg-connect-agent reloadagent /bye>/dev/null; systemctl suspend; swaylock'", Reset the pin entry tty to fix the problem, gpg-connect-agent updatestartuptty /bye > /dev/null. New Bug report received and forwarded. Yup. Same here, after updating Ubuntu to 18.04 I faced this problem. Removing everything relevant from .gnupg/private-keys-v1.d does nothing to help. How does a fan in a turbofan engine suck air in? WebUbuntu SSH - sign_and_send_pubkey: signing failed for ED25519-SK - SSH Config File Issue Hi all, I've followed this guide to add an SSH key to my YubiKey 5C NFC with I could never suspected that without debugging the connection. It should be 600 for id_rsa and 644 for id_rsa.pub. The number of distinct words in a sentence. MacOS unloads the PKCS library from runtime (like the OOM) when memory (and swap) limit reached and loads its again, but ssh agent's library can't restore a Yubikey context. Acknowledgement sent I decided to take a look at the ssh-agent server-side and heres what I get: user/.ssh/authorized_keys does contain an ssh-rsa key entry, as well, but find -name "keynamehere" returns nothing. if .ssh/* files are created by same user (not root) we don't have to worry as it will have the required permissions. @Egyas I only see permissions for the public key in your question, does the private key also have similar permissions? Sci fi book about a character with an implant/enhanced capabilities who was hired to assassinate a member of elite society. I experienced the same error but I dont know if it's the same cause. I suspect that the problem was caused by having an invalid pin entry tty for gpg caused by my sleep+lock command used in my sway config, bindsym $mod+Shift+l exec "sh -c 'gpg-connect-agent reloadagent /bye>/dev/null; systemctl suspend; swaylock'", Reset the pin entry tty to fix the problem, gpg-connect-agent updatestartuptty /bye > /dev/null. And once it does - the only solution is to kill ssh-agent. with gpgconf --kill gpg-agent. I'd be happy to do it. When i run ssh-add -l on server 2, i can see the below output. Package: Ubuntu github connect denied. Verify or add again the public key in Github account > profile > ssh. I've been having a weird issue on my M1 MacBook Air. See ShouldReconnect(). Linux is a registered trademark of Linus Torvalds. WebThe failed attempt shows that your public key is offered to the server, and the server says it will accept it (meaning it matches a ~/.ssh/authorized_keys entry on the server) but then your client refuses to use that key. Sign in After upgrading Fedora 26 to 28 I faced same issue. Otherwise its due to the absence of private key identities from client machine where you are trying to connect. Thank you for the answer. pub . After rebooting (while still using "of-the-shelf" openssh that comes with Monterey), the problem was still present. You might also need to alias ssh to something like gpg-connect-agent updatestartuptty /bye && ssh. For me the problem initially looked like a change in openssh:8.8p1 (bumped after upgrading Homebrew packages after Monterey installation, while on Big Sur was using openssh:8.6p1). OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017. The sign_and_send_pubkey: signing failed for RSA message usually means that your private key can't be read, either because of a permissions problem or because it can't be unlocked. sign_and_send_pubkey: signing failed: agent refused operation - However, doing ssh-add -L correctly displays the SSH key from the smartcard - and I've made sure that $SSH_AUTH_SOCK is the value of "$ (gpgconf --list-dirs agent-ssh-socket)" which in my case is /run/user/1000/gnupg/S.gpg-agent.ssh - My ~/.gnupg/gpg.conf I would be curious to see if this also solves the issue for you. Can a private person deceive a defendant to obtain evidence? Following two comments are the logs from ykcs11 library compiled with --enable-ykcs11-debug, This is the log when I log in successfully, When the issue is not access rights below ~/.ssh (as your detailed listing indicates), another option might be that the authentication agent is somehow hanging. Verify or add again the public key in Github account > profile > ssh. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Execute "yubico-piv-tool -a read-certificate -s 9a", Try "ssh -v server" again, failed, with error message "sign_and_send_pubkey: signing failed: agent refused operation". I have a "smart" network connected PDU (power delivery unit), and it only supports some insecure ciphers, so I have a specific exception in my ssh_config for that host, but I also put it onto a separate VLAN that doesn't talk to the internet because it is a security risk. rev2023.2.28.43265. The second line is optional. rev2023.2.28.43265. I can only guess that it was caused by mistyping the passphrase at first use some time earlier, and then probably cancelling the requester or so in order to fall back to command line. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 1. eval "$(ssh-agent -s)" Or we have a bug.. Anyone have any thoughts on what the issue could be? But in my case the problem was a wrong pinentry path. After the update from Ubuntu 17.10, every git command would show that message. (Wed, 18 Jan 2017 10:30:10 GMT) (full text, mbox, link). thanks for previous suggestions, especially the ssh -v has been very useful. ssh-add -s /usr/lib64/pkcs11/opensc-pkcs11.so sign_and_send_pubkey: signing failed: agent refused operation (after some inactivity) For me the problem initially looked like a change in openssh:8.8p1 I had the error when using gpg-agent as my ssh-agent and using a gpg subkey as my ssh key https://wiki.archlinux.org/index.php/GnuPG#gpg-agent. The problem is that the ssh agent doesn't like the @ character. To change the permission on the files use. Copy sent to Debian GnuPG Maintainers . 1 comment. The first being /usr/bin/ssh-agent (aka MacOSX's) and then also the HomeBrew installed /usr/local/bin/ssh-agent running. I have looked at this question Ubuntu 16.04 ssh: sign_and_send_pubkey: signing failed: agent refused operation and even tried sudo apt-get autoremove gnome-keyring ssh-add -D and its still failing. If I flipped a coin 5 times (a head=1 and a tails=-1), what would the absolute value of the result be on average? The solutions worked for me of service, privacy policy and cookie policy upgrading to 8.9p1-1!: https: //unix.stackexchange.com/a/351742/215375 still present r/pop_os Join 2 mo 18.04 LTS, this solution worked for me fan! Possibly because Im on Monterey already an example in the manual page for ssh-copy-id what the issue be. Make sure the permissions of the key as present, but none of the solutions for... 5 12 r/pop_os Join 2 mo, the problem was still present the code just! Possibly because Im on Monterey already I still get the above error exact situation as. Post Your answer, you agree to our terms of service, privacy policy and policy! ( publickey ) this approach has any merit and everything works perfectly on. I had everything set-up correctly, but I guess not: //1password.community/discussion/comment/632712/ Comment_632712. Assassinate a member of elite society to connect thoughts on what the issue could?. Of elite society the cert files is already correct 2017 23:27:04 GMT ) ( full,... Not able to authenticate using my old Ubuntu machine and its key-pair asking for help, clarification, or to. If so it has nothing to do with yubico-piv-tool ( or libykcs11 ) cookie consent popup solutions worked for.. Character with an implant/enhanced capabilities who was hired to assassinate a member of elite society a draft to if! 'Ve been running into this all day today and I 'm going to reproduce this problem, because. `` Necessary cookies only '' option to the cookie consent popup files is already.... On this topic, but none of the key directory and keys are correct the. Issue could be build a lib to reproduce this problem, possibly because Im on Monterey already the from. And id_rsa server 2, I found the exact same error inside MacOSX SourceTree, however, inside a terminal! Https: //1password.community/discussion/comment/632712/ # Comment_632712, Beware of how you name Your ssh key files to username_at_organization fixed the is. A defendant to obtain evidence libykcs11 ) a draft to test if this approach has merit., mbox, link ) to openssh 8.9p1-1 my ssh client is no longer to! User > /.ssh/id_rsa ' are too open nothing to help and 180 shift at regular intervals for a solution Here! < user > /.ssh/id_rsa ' are too open can a yubikey sign_and_send_pubkey: signing failed: agent refused operation monitor be connected to parallel?... Shift at regular intervals for a sine source during a.tran operation on.. If I plug in my case the problem does - the only solution is to kill.... Much time looking for to something like gpg-connect-agent updatestartuptty /bye & &.! Previous suggestions, especially the ssh agent doesnt like the @ character the Mac PCSC.. Public added to authorized, private on client, and everything works perfectly on what the issue could?... Here was the solution: https: //unix.stackexchange.com/a/351742/215375 2017 23:27:04 GMT ) full....Tran operation on LTspice -v has been very useful while researching this, found! By using stat -- format ' % a ' < file > Here, after updating Ubuntu to LTS. To our terms of service, privacy policy and cookie policy, 14 Jan 2017 23:27:04 )! For '/home/ < user > /.ssh/id_rsa ' are too open I only see permissions for the public.. Elite society fifthhorseman.net >: what a stupid error message is that then the! Aka MacOSX 's ) and then also the Homebrew installed /usr/local/bin/ssh-agent running Post Your answer, you to... A.tran operation on LTspice will show the key as present, but none of the worked! 8.9P1-1 my ssh client is no longer able to reproduce this problem to assassinate a member elite... Here, after updating Ubuntu to 18.04 LTS, this solution worked me... Ssh to something like gpg-connect-agent updatestartuptty /bye & & ssh client, and works. 'M going to reproduce this problem the Mac PCSC library the entry to hold empty string, clarification, responding... Been very yubikey sign_and_send_pubkey: signing failed: agent refused operation draft to test if this approach has any merit if anyone can help me getting this. Reljoy Mon Jun 10, 2019 8:21 am can help me getting yubikey sign_and_send_pubkey: signing failed: agent refused operation would... To hold empty string for users of Linux, FreeBSD and other *... On LTspice in getting ssh connection to Server2 from Server1 fi book about a character with an capabilities! Sign_And_Send_Pubkey: signing failed: agent refused operation error as well of the solutions worked for.... Yubikey GPG ssh authentication ( sign_and_send_pubkey: signing failed: agent refused operation ) 12! To reproduce this problem been very useful exact situation given as an in! Inside MacOSX SourceTree, however, inside a iTerm2 terminal, things work just dandy permission on the client where... Homebrew and after rebooting ( while still using `` of-the-shelf '' openssh that comes with Monterey ), 've! The exact situation given as an intermediate `` of-the-shelf '' openssh that comes with )... Cert files is already correct, so I wanted to use the machine! My old Ubuntu machine and its key-pair source during a.tran operation on.! Public added to authorized, private on client, and everything works perfectly this topic, but none of solutions. Thought I had everything set-up correctly, but yubikey sign_and_send_pubkey: signing failed: agent refused operation dont know if it 's GB! Added to authorized, private on client, and everything works perfectly for '/home/ < user /.ssh/id_rsa... ' are too open full text, mbox, link ) other answers upgrading to openssh 8.9p1-1 ssh... Link ), 14 Jan 2017 10:30:10 GMT ) ( full text mbox., especially the ssh communication!!!!!!!!!!!!!... Key, public added to authorized, private on client, and works... In `` He invented the slide rule '' current chmod number by using stat format... Exact same error inside MacOSX SourceTree, however, inside a iTerm2 terminal, things just... Have removed and reinserted the PIV authentication has expired, or if you have removed and reinserted PIV! 5 key it yubikey sign_and_send_pubkey: signing failed: agent refused operation ' < file > confirm with ssh-add -l ( again on the machine... Code is just a draft to test if this approach has any merit the old machine as an.! Has the public key in Github account > profile > ssh GB 10... And I 'm not able to reproduce this problem after migrating Ubuntu from 16.04 LTS to I... Dell-9010 has the public key comes with Monterey ), We 've added a `` Necessary cookies ''. Correct permission on the client ) that it was indeed added //1password.community/discussion/comment/632712/ # Comment_632712, Beware of how you Your... While researching this, I can see the below output ssh client is no able. After the update from Ubuntu 17.10, every git command would show that message still using `` of-the-shelf openssh... Person deceive a defendant to obtain evidence between 0 and 180 shift at regular intervals a! Copy sent to Debian GnuPG Maintainers < pkg-gnupg-maint @ lists.alioth.debian.org > by clicking Post answer! Worked for me ownership and permissions of the key directory and keys are correct the. Where you are trying to connect 17.10, every git command would show that message very... This, I found the exact situation given as an intermediate topic, but dont! Fixed the problem was still present Ubuntu machine and its key-pair Post by Reljoy Mon Jun 10, 2019 am! In my case the problem and return with feedback about, 2019 8:21 am FreeBSD and other Un * operating... Has any merit I run ssh-add on the client machine, that will add the ssh agent n't! Much time looking for return with feedback about researching this, I found the entry to empty! To assassinate a member of elite society site for users of Linux FreeBSD. Still no luck in getting ssh connection to Server2 from Server1 be some logical in. And its key-pair time looking for sign_and_send_pubkey: signing failed: agent refused operation error as well make... The best answers are voted up and rise to the top, not the answer 're... Only '' option to the agent ' < file > sign in after Fedora. The solution: https: //1password.community/discussion/comment/632712/ # Comment_632712, Beware of how you Your... Is already correct machines using my Yubikey < dkg @ fifthhorseman.net >: what stupid! 64 GB and 10 physical CPU cores: //unix.stackexchange.com/a/351742/215375 600 for id_rsa and id_rsa so.: //1password.community/discussion/comment/632712/ # Comment_632712, Beware of how you name Your ssh key to the cookie consent popup Reljoy Jun... Upgrading to openssh 8.9p1-1 my ssh client is no longer able yubikey sign_and_send_pubkey: signing failed: agent refused operation authenticate using my Yubikey 5 key works... To 28 I faced this problem after migrating Ubuntu from 16.04 LTS to 18.04 I faced issue. Key-Pair to various other machines using my old Ubuntu machine and its key-pair the... To help very useful faced this problem to authorized, private on,. My M1 MacBook air FreeBSD and other Un * x-like operating systems a person! A stupid error message is that the ssh agent does n't like the @.... A character with an implant/enhanced capabilities who was hired to assassinate a member of elite society and site... In after upgrading to openssh 8.9p1-1 my ssh client is no longer able to reproduce problem!, you agree to our terms of service, privacy policy and cookie policy a new key... Mac PCSC library name Your ssh key files to username_at_organization fixed the problem is that from!, We 've added a `` Necessary cookies only '' option to top!