Unable to use PIV Attestation on Windows

[iveqy]

I've had my yubikey 5c for a while, working great on my MacBook Air M1.

I just got a Microsoft Surface Pro 11 with the new snapdragon arm64 cpu.

So I download yubico-piv-tool and build it, linking towards openssl.

I use the ssh client from windows (which is linked against libressl if that matters) and try to connect to my server with:
ssh -I C:\Users\iveqy\lib\libykcs11.dll myServer-v

This just fails with:
OpenSSH_for_Windows_9.5p1, LibreSSL 3.8.2 debug1: Reading configuration data C:\\Users\\iveqy/.ssh/config debug1: C:\\Users\\iveqy/.ssh/config line 1: Applying options for myServer debug1: Connecting to myServer [XX.XX.XX.XX] port 22. debug1: Connection established. debug1: provider C:\\Users\\iveqy\\lib\\libykcs11.dll: manufacturerID <Yubico (www.yubico.com)> cryptokiVersion 2.40 libraryDescription <PKCS#11 PIV Library (SP-800-73)> libraryVersion 2.52 debug1: provider C:\\Users\\iveqy\\lib\\libykcs11.dll slot 0: label <YubiKey PIV #16932921> manufacturerID <Yubico (www.yubico.com)> model <YubiKey YK5> serial <16932921> flags 0x40d debug1: have 1 keys debug1: pkcs11_k11_free: parent 00000269B018C0F0 ptr 00000269B01BF9E0 idx 1 debug1: pkcs11_provider_unref: provider "C:\\Users\\iveqy\\lib\\libykcs11.dll" refcount 2 debug1: identity file C:\\Users\\iveqy/.ssh/id_rsa type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_rsa-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa_sk type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519 type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519_sk type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519_sk-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_xmss type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_xmss-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_dsa type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_for_Windows_9.5 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.6p1 Ubuntu-4ubuntu0.7 debug1: compat_banner: match: OpenSSH_7.6p1 Ubuntu-4ubuntu0.7 pat OpenSSH_7.0*,OpenSSH_7.1*,OpenSSH_7.2*,OpenSSH_7.3*,OpenSSH_7.5*,OpenSSH_7.6*,OpenSSH_7.7* compat 0x04000002 debug1: Authenticating to myServer:22 as 'iveqy' debug1: load_hostkeys: fopen C:\\Users\\iveqy/.ssh/known_hosts2: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256 debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: SSH2_MSG_KEX_ECDH_REPLY received debug1: Server host key: ssh-ed25519 SHA256:X4uc/yncys1lBSUdrlF++Yh7wnr61FoYp5WRJpQReQg debug1: load_hostkeys: fopen C:\\Users\\iveqy/.ssh/known_hosts2: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts2: No such file or directory debug1: Host 'dahut.tech' is known and matches the ED25519 host key. debug1: Found key in C:\\Users\\iveqy/.ssh/known_hosts:1 debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: get_agent_identities: ssh_get_authentication_socket: No such file or directory debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_rsa debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ecdsa debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ecdsa_sk debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ed25519 debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ed25519_sk debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_xmss debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_dsa debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521> debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_rsa debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ecdsa debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ecdsa_sk debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ed25519 debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ed25519_sk debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_xmss debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_dsa debug1: No more authentication methods to try. ubuntu@dahut.tech: Permission denied (publickey).

So I do a key export with ssh-keygen. Get a new public key (which I don't understand why) and add that to authorized_keys on my server. Then I try again. This time I get to enter my pin code but still no success in loggin in.

PS C:\Users\iveqy\src\openssh-portable> ssh -I C:\Users\iveqy\lib\libykcs11.dll myServer -v OpenSSH_for_Windows_9.5p1, LibreSSL 3.8.2 debug1: Reading configuration data C:\\Users\\iveqy/.ssh/config debug1: C:\\Users\\iveqy/.ssh/config line 6: Applying options for myServer debug1: Connecting to 31.208.38.86 [XX.XX.XX.XX] port 22. debug1: Connection established. debug1: provider C:\\Users\\iveqy\\lib\\libykcs11.dll: manufacturerID <Yubico (www.yubico.com)> cryptokiVersion 2.40 libraryDescription <PKCS#11 PIV Library (SP-800-73)> libraryVersion 2.52 debug1: provider C:\\Users\\iveqy\\lib\\libykcs11.dll slot 0: label <YubiKey PIV #16932921> manufacturerID <Yubico (www.yubico.com)> model <YubiKey YK5> serial <16932921> flags 0x40d debug1: have 1 keys debug1: pkcs11_k11_free: parent 000001C1B018C230 ptr 000001C1B01BF740 idx 1 debug1: pkcs11_provider_unref: provider "C:\\Users\\iveqy\\lib\\libykcs11.dll" refcount 2 debug1: identity file C:\\Users\\iveqy/.ssh/id_rsa type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_rsa-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa_sk type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519 type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519_sk type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_ed25519_sk-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_xmss type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_xmss-cert type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_dsa type -1 debug1: identity file C:\\Users\\iveqy/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_for_Windows_9.5 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.9p1 Debian-10+deb10u2 debug1: compat_banner: match: OpenSSH_7.9p1 Debian-10+deb10u2 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 31.208.38.86:2255 as 'iveqy' debug1: load_hostkeys: fopen C:\\Users\\iveqy/.ssh/known_hosts2: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256 debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: SSH2_MSG_KEX_ECDH_REPLY received debug1: Server host key: ssh-ed25519 SHA256:p17Mv39287EYUF0vySYjynh9GrFT2iaVipBf0vVdR1c debug1: load_hostkeys: fopen C:\\Users\\iveqy/.ssh/known_hosts2: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts2: No such file or directory debug1: Host '[31.208.38.86]:2255' is known and matches the ED25519 host key. debug1: Found key in C:\\Users\\iveqy/.ssh/known_hosts:3 debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: get_agent_identities: ssh_get_authentication_socket: No such file or directory debug1: Will attempt key: Public key for PIV Attestation RSA SHA256:IVuYB+R5NGoEnf0HNysTj/4rZG+D+91Bd9+h6OnmEtI token debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_rsa debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ecdsa debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ecdsa_sk debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ed25519 debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_ed25519_sk debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_xmss debug1: Will attempt key: C:\\Users\\iveqy/.ssh/id_dsa debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521> debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Offering public key: Public key for PIV Attestation RSA SHA256:IVuYB+R5NGoEnf0HNysTj/4rZG+D+91Bd9+h6OnmEtI token debug1: Server accepts key: Public key for PIV Attestation RSA SHA256:IVuYB+R5NGoEnf0HNysTj/4rZG+D+91Bd9+h6OnmEtI token Enter PIN for 'YubiKey PIV #16932921': debug1: C_FindObjects failed (nfound 0 nattr 3): 0 debug1: pkcs11_check_obj_bool_attrib: provider "C:\\Users\\iveqy\\lib\\libykcs11.dll" slot 0 object 110: attrib 514 = 0 C_Sign failed: 7 debug1: identity_sign: sshkey_sign: error in libcrypto sign_and_send_pubkey: signing failed for RSA "Public key for PIV Attestation": error in libcrypto debug1: pkcs11_k11_free: parent 000001C1B018CF50 ptr 0000000000000000 idx 1 debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_rsa debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ecdsa debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ecdsa_sk debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ed25519 debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_ed25519_sk debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_xmss debug1: Trying private key: C:\\Users\\iveqy/.ssh/id_dsa debug1: Next authentication method: password iveqy@XX.XX.XX.XX's password: