Can't connect with SFTP, no sha256 support

[WoodyEckelzone]

Recently Krusader can't connect to server over sftp.

`no match for method mac algo client->server`

AFAICS this is caused because new servers disabled sha1 for security reasons and Krusader (KIO) only supports hmac-sha1.

Krusader uses KIO -> libssh.

AFAICS the new libssh library supports the new sha256/sha512.

We need a fix/update badly, Krusader stopped connecting, and the method it uses seems to be insecure nowadays (AFAIK).

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: krusader 1:2.4.0~beta3-2
ProcVersionSignature: Ubuntu 3.13.0-53.89-generic 3.13.11-ckt19
Uname: Linux 3.13.0-53-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Jun 3 21:29:36 2015
InstallationDate: Installed on 2013-04-26 (768 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: krusader
UpgradeStatus: Upgraded to trusty on 2014-04-24 (404 days ago)

[WoodyEckelzone (bcr497)]

A workaround seems to be using the fish:// method instead of sftp://

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Benedykt 'Silmethule' Jaworski (silmethule)]

Affects also krusader 1:2.4.0~beta3-2ubuntu1 from Ubuntu 15.04 vivid amd64.

Another (better? uses server-side sftp) workaround is to use sshfs to fuse-mount host’s filesystem and the browse in Krusader.

[asdf (asdfg)]

Ubuntu 16.04 LTS is also affected. It uses old libssh-0.6.3. SHA-2 support was added in libssh-0.7.0.