[Bug 1747242] Re: All host keys work except ed25519

[Enkouyami]

** Description changed:

- Changing the sshd_config file to use exclusively the ed25519 host key
- type causes the server to reject all connections.
+ Changing the sshd_config file to use the ed25519 host key exclusively
+ causes the server to reject all connections.
  
  Excerpt from my config file:
  #HostKey /etc/ssh/ssh_host_rsa_key
  #HostKey /etc/ssh/ssh_host_ecdsa_key
- HostKey /etc/ssh/Japan_ssh_host_ed25519_key
+ HostKey /etc/ssh/ssh_host_ed25519_key
  
  I tried setting each one individually then restarting the sshd service
  and it only states that the connection has been reset when I use
  ed25519.
+ 
+ I've tried connecting from localhost, another Ubuntu 16.04 computer with
+ OpenSSH_7.5p1, and localhost on the other computer.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: openssh-server 1:7.5p1-10ubuntu0.1
  ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
  Uname: Linux 4.13.0-25-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Feb  4 04:36:44 2018
  InstallationDate: Installed on 2017-11-30 (66 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  ProcEnviron:
-  TERM=xterm-256color
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm-256color
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: openssh
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1747242

Title:
  All host keys work except ed25519

Status in openssh package in Ubuntu:
  New

Bug description:
  Changing the sshd_config file to use the ed25519 host key exclusively
  causes the server to reject all connections.

  Excerpt from my config file:
  #HostKey /etc/ssh/ssh_host_rsa_key
  #HostKey /etc/ssh/ssh_host_ecdsa_key
  HostKey /etc/ssh/ssh_host_ed25519_key

  I tried setting each one individually then restarting the sshd service
  and it only states that the connection has been reset when I use
  ed25519.

  I've tried connecting from localhost, another Ubuntu 16.04 computer
  with OpenSSH_7.5p1, and localhost on the other computer.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: openssh-server 1:7.5p1-10ubuntu0.1
  ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
  Uname: Linux 4.13.0-25-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Feb  4 04:36:44 2018
  InstallationDate: Installed on 2017-11-30 (66 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: openssh
  UpgradeStatus: No upgrade log present (probably fresh install)

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