Server KEXINIT proposal doesn't show host key algorithms

[angy91m]

Hi folks,

I'm trying to test to connect locally but my problem seems that the server doesn't offer any host key algorithm.

My server listen on port 3000.

My sshd_config:

Port 3000
AuthorizedKeysFile .ssh/authorized_keys

KexAlgorithms [email protected]
HostKeyAlgorithms ssh-ecdsa-nistp521-sphincsshake256fsimple
PubkeyAcceptedKeyTypes ssh-ecdsa-nistp521-sphincsshake256fsimple
HostKey /home/user/.ssh/host_ecdsa-nistp521-sphincsshake256fsimple

My ssh_config:

Host *
  KexAlgorithms [email protected]
  HostKeyAlgorithms ssh-ecdsa-nistp521-sphincsshake256fsimple
  PubkeyAcceptedKeyTypes ssh-ecdsa-nistp521-sphincsshake256fsimple
  PasswordAuthentication no
  IdentityFile ~/.ssh/id_ecdsa-nistp521-sphincsshake256fsimple

I created the keys following the README, so ls ~/.ssh/:

-rw-rw-r-- 1 user user 173 ott  6 21:41 authorized_keys
-rw------- 1 user user 614 ott  6 21:33 host_ecdsa-nistp521-sphincsshake256fsimple
-rw-r--r-- 1 user user 173 ott  6 21:33 host_ecdsa-nistp521-sphincsshake256fsimple.pub
-rw------- 1 user user 614 ott  6 21:02 id_ecdsa-nistp521-sphincsshake256fsimple
-rw-r--r-- 1 user user 173 ott  6 21:02 id_ecdsa-nistp521-sphincsshake256fsimple.pub

Well, I started the server running "$(pwd)/sshd" -D -f ../sshd_config.

But when I try to connect with ./ssh -vvv -F ../ssh_config -p 3000 127.0.0.1, I'll get:

OpenSSH_8.9-2022-01_p1, Open Quantum Safe 2022-08, OpenSSL 3.0.2 15 Mar 2022
debug1: Reading configuration data ../ssh_config
debug1: ../ssh_config line 20: Applying options for *
debug3: kex names ok: [[email protected]]
debug2: resolve_canonicalize: hostname 127.0.0.1 is address
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/user/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/user/.ssh/known_hosts2'
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug3: ssh_connect_direct: entering
debug1: Connecting to 127.0.0.1 [127.0.0.1] port 3000.
debug3: set_sock_tos: set socket 3 IP_TOS 0x48
debug1: Connection established.
debug1: identity file /home/user/.ssh/id_ecdsa-nistp521-sphincsshake256fsimple type 31
debug1: identity file /home/user/.ssh/id_ecdsa-nistp521-sphincsshake256fsimple-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.9-2022-01_
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.9-2022-01_
debug1: compat_banner: match: OpenSSH_8.9-2022-01_ pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 127.0.0.1:3000 as 'user'
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: [email protected],ext-info-c
debug2: host key algorithms: ssh-ecdsa-nistp521-sphincsshake256fsimple
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: [email protected]
debug2: host key algorithms: 
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: (no match)
Unable to negotiate with 127.0.0.1 port 3000: no matching host key type found. Their offer: 

What am I doing wrong?

Thanks a lot for every help!