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SSH doesn't work with DSA keys #375
Description
I have the same problem as described in issue #343, which was closed due to a not-responding OP. The problem seems to be that SSH does not work anymore with DSA keys. This problem exists with git 2.5.1 and 2.5.2 (both 64 Bit) on Windows 8.1 and Windows 10 (both 64 Bit). Git 2.5.0 worked fine on both systems.
To reproduce the problem do the following:
- ssh-keygen -t DSA
- add ~/.ssh/id_dsa.pub to authorized_keys on remote system
- ssh to remote system -> need to enter password
The same works fine if RSA is used instead of DSA.
Activity
dscho commentedon Sep 11, 2015
Thanks for your report, and in particular for testing with several Git for Windows versions and documenting properly what works and what does not.
Your Minimal, Complete and Verifiable Example was very clear and helped me reproduce the problem quickly. Thank you so much!
When passing
-v -v -v -vtossh, this line looks like it indicates the culprit:which makes me believe that something in the OpenSSH configuration has changed that specifically excludes DSA public keys.
The most notable difference between 2.5.0 and 2.5.2 is this:
(found by comparing
/etc/package-versions.txtin extracted portable Gits).Now, the release notes for OpenSSH 7.1 did not reveal anything, but the release notes for OpenSSH 7.0 contain this hint:
The linked page says:
If you must use that key, you could pass the
-o PubkeyAcceptedKeyTypes=ssh-dssoption tossh, and if you cannot replace the weak key by a stronger one, you can put the linePubkeyAcceptedKeyTypes ssh-dssinto the section of your$HOME/.ssh/configthat corresponds to the SSH host you want to connect to.Ostefanini commentedon Nov 6, 2016
Thank you so much !
Merge pull request git-for-windows#375: gvfs-helper: always keep inde…