Error during file upload. Algorithm negotiation fail:

[sg5575-siva]

when i try to connect to remote device over sshd(openssh 10.3) version in eclipse i see Algorithm failed Error.
i used latest eclipse 2026-03 release.

[sg5575-siva]

This issue is seen in embedded C/C++ eclipse ide

[ilg-ul]

As far as I remember, the Embedded C/C++ Eclipse plug-ins do not deal with ssh, I guess the issue is in Eclipse core.

[sg5575-siva]

Unable to negotiate with x.x.x.x port 48694: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group14-s]

Above algorithms are used in com.jcraft.jsch_0.1.55.v20230916-1400.jar but same alog's are not supported in sshd10.3
now how can i update this plugin in eclipse ?

or is there any plan updating eclipse with jsch-0.2.21.jar plugin which supports algorithms which are present in sshd 10.3 ?

[ilg-ul]

Can you point where exactly in the Embed CDT plug-ins is this jar used?

[sg5575-siva]

com.jcraft.jsch_0.1.55.v20230916-1400.jar -- this is present under plugins folder when we extrat this eclipse folder - https://www.eclipse.org/downloads/download.php?file=/oomph/epp/2026-03/R/eclipse-inst-jre-linux64.tar.gz&mirror_id=492

and latest jsch jar - jsch-0.2.21.jar i downloaded from - https://repo1.maven.org/maven2/com/github/mwiede/jsch/0.2.21/jsch-0.2.21.jar

[ilg-ul]

Ok, but what makes you think that they have anything to do with Embed CDT plug-ins?