LinuxからWindowsへの公開鍵によるssh接続

Question

前提・実現したいこと

LinuxからWindowsへの公開鍵によるssh接続をしたいです。
パスワード認証は可能ですが、公開鍵認証がNGで、公開鍵で接続したいです。
・参考にしたサイト：https://qiita.com/M_Nagata/items/722a9970dcc2a0b71612

・パスワード認証は可能

[testuser@sftp-linux .ssh]$ ssh -i id_rsa_win2 [e-mail]
[e-mail]'s password:

Microsoft Windows [Version 10.0.17763.615]
(c) 2018 Microsoft Corporation. All rights reserved.

sftp001@EC2AMAZ-5KCOL7I C:\Users\sftp001>
sftp001@EC2AMAZ-5KCOL7I C:\Users\sftp001>
sftp001@EC2AMAZ-5KCOL7I C:\Users\sftp001>exit
Connection to 13.xxx.xxx.xxx closed.
[testuser@sftp-linux .ssh]$

・公開鍵認証がNG

[testuser@sftp-linux .ssh]$ ssh -i id_rsa_win2 [e-mail] -vvv
OpenSSH_7.4p1, OpenSSL 1.0.2k-fips  26 Jan 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 58: Applying options for *
debug2: resolving "13.113.xxx.xxx" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 13.113.xxx.xxx [13.113.xxx.xxx] port 22.
debug1: Connection established.
debug1: identity file id_rsa_win2 type 1
debug1: key_load_public: No such file or directory
debug1: identity file id_rsa_win2-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_for_Windows_8.0
debug1: match: OpenSSH_for_Windows_8.0 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 13.113.xxx.xxx:22 as 'sftp001'
debug3: hostkeys_foreach: reading file "/home/testuser/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/testuser/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from 13.113.xxx.xxx
debug3: order_hostkeyalgs: prefer hostkeyalgs: [e-mail],[e-mail],[e-mail],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
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: curve25519-sha256,[e-mail],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,ext-info-c
debug2: host key algorithms: [e-mail],[e-mail],[e-mail],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[e-mail],[e-mail],[e-mail],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss
debug2: ciphers ctos: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail],aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail],aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[e-mail],zlib
debug2: compression stoc: none,[e-mail],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[e-mail],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail]
debug2: ciphers stoc: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail]
debug2: MACs ctos: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none
debug2: compression stoc: none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [e-mail] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [e-mail] MAC: <implicit> compression: none
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:DL5Hs3TcydWqMmMzCXbLoyu3OaOPObIyQcj8gVOK1XU
debug3: hostkeys_foreach: reading file "/home/testuser/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/testuser/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from 13.113.xxx.xxx
debug1: Host '13.113.xxx.xxx' is known and matches the ECDSA host key.
debug1: Found key in /home/testuser/.ssh/known_hosts:5
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: id_rsa_win2 (0x56554e3d26f0), explicit
debug3: send packet: type 5
debug3: receive packet: type 7
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>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: id_rsa_win2
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug3: send packet: type 50
debug2: we sent a keyboard-interactive packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: userauth_kbdint: disable: no info_req_seen
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred:
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
[e-mail]'s password:

[testuser@sftp-linux .ssh]$

実施したこと

■Windows2019
・以下から、OpenSSH(v8.0.0.0p1-Beta　OpenSSH-Win64.zip)導入
https://github.com/PowerShell/Win32-OpenSSH/releases
・Firewallの無効化
・ホストの認証キーを作成
.\ssh-keygen.exe -A
・ホスト認証キーのパーミッション確認

C:\OpenSSH-Win64>powershell -ExecutionPolicy Bypass -File FixHostFilePermissions.ps1
  [*] C:\ProgramData\ssh\sshd_config
      looks good

  [*] C:\ProgramData\ssh\ssh_host_dsa_key
      looks good

  [*] C:\ProgramData\ssh\ssh_host_dsa_key.pub
      looks good

  [*] C:\ProgramData\ssh\ssh_host_ecdsa_key
      looks good

  [*] C:\ProgramData\ssh\ssh_host_ecdsa_key.pub
      looks good

  [*] C:\ProgramData\ssh\ssh_host_ed25519_key
      looks good

  [*] C:\ProgramData\ssh\ssh_host_ed25519_key.pub
      looks good

  [*] C:\ProgramData\ssh\ssh_host_rsa_key
      looks good

  [*] C:\ProgramData\ssh\ssh_host_rsa_key.pub
      looks good

  [*] C:\Users\sftp001.ssh\authorized_keys
      looks good

  [*] C:\Users\Administrator.ssh\authorized_keys
      looks good

   Done.


C:\OpenSSH-Win64>

・.sshフォルダへ、該当ユーザのフルコントロール権限付与

・以下の質問ではドメインユーザで接続したところ接続可能だったようですが、今回はWindowsローカルユーザです。
　　　https://teratail.com/questions/69331
・Linux-Linux同士の公開鍵認証は接続可能でした。
・Windowsの.sshフォルダや、authorized_keysの権限周りを変更し接続を試みましたが、NGでした。

ご教授いただきたく思います。

Answer 1

Windows 2008 、OpenSSH v7.6.1.0-1-Bata　で以下サイトのように実施したらできました。
https://qiita.com/M_Nagata/items/722a9970dcc2a0b71612
ver差分あり、根本原因は不明ですが、時間あるときに切り分けたいと思います。

ご確認、ご回答いただきありがとうございました！

Answer 2

https://qiita.com/uura/items/df0a43cbbd61a04cc820

配置した「authorized_keys」のプロパティ画面でアクセス許可に「NT Service\sshd」を追加し、[読み取り]を許可します。

だ、そうです。いかがでしょ

Comments

[work.ta.ya]

返信ありがとうございます。
NT Service\sshd　追加し、sshd再起動しましたがNGでした。

他記事で、ssh-agent起動したら接続可能だったとの記事がありましたが、状況変わらず接続NGでした。