What I observed is that the entries in known_hosts created by ssh that are not supported contain a string ecdsa-sha2-nistp256 instead of ssh-rsa. Hashed entries with ssh-rsa are supported.
readelf -d /usr/bin/x2goclient |does not show a dependency on libcrypto which contains the elliptic curve cryptography functions while readlef -d /usr/bin/ssh shows such a dependency.|
Best regards
Heinrich Schuchardt
merge #240 #106 thanks
Hi Heinrich,
On So 16 Jun 2013 21:25:13 CEST Heinrich Schuchardt wrote:
What I observed is that the entries in known_hosts created by ssh
that are not supported contain a string ecdsa-sha2-nistp256 instead
of ssh-rsa. Hashed entries with ssh-rsa are supported.readelf -d /usr/bin/x2goclient |does not show a dependency on libcrypto which contains the elliptic
curve cryptography functions while readlef -d /usr/bin/ssh shows such a dependency.|
The problem actually is that there is no ECDSA key support in libssh2
(which is used by X2Go Client). Unfortunately, most recent (Open)SSH
implementation do use ECDSA as the default key type.
Thus, I will merge this bug report with #106 which tackles the same problem.
Thanks+Greets,
Mike (who is waiting desperately for the libssh2 developers to
implement ECDSA)
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merge #240 #106 Bug #240 [x2goclient] X2goclient cannot read hashed entries in known_hosts Bug #240 [x2goclient] X2goclient cannot read hashed entries in known_hosts There is no source info for the package 'x2goclient' at version '4.0.0.1' with architecture '' Unable to make a source version for version '4.0.0.1' There is no source info for the package 'x2goclient' at version '4.0.1.0' with architecture '' Unable to make a source version for version '4.0.1.0' Marked as found in versions 4.0.0.1. Bug #106 [x2goclient] SSH Host Key Validation fails when ECDSA is already known There is no source info for the package 'x2goclient' at version '4.0.0.1' with architecture '' Unable to make a source version for version '4.0.0.1' There is no source info for the package 'x2goclient' at version '4.0.1.0' with architecture '' Unable to make a source version for version '4.0.1.0' Marked as found in versions 4.0.1.0. Merged 106 240 thanks Stopping processing here.
Please contact me if you need assistance.
106: http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=106 240: http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=240 X2Go Bug Tracking System Contact owner@bugs.x2go.org with problems
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Heinrich Schuchardt -
Mike Gabriel -
owner＠bugs.x2go.org