curve25519-sha256 kex not supported in WinSCP

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Guest25519
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curve25519-sha256 kex not supported in WinSCP

WinSCP Version 5.17.5 on Windows 7 x64. It has not worked on any previous version of WinSCP either.

Using SFTP. Using GUI.

The remote server is configured with:
KexAlgorithms curve25519-sha256

Please note that curve25519-sha256 is the newer name for the deprecated curve25519-sha256@libssh.org

I get the following error when trying to connect:

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Error
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Couldn't agree a key exchange algorithm (available: curve25519-sha256)
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OK Reconnect Help
---------------------------

Log attached.
  • winscp.log (3.72 KB, Private file)

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martin
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Re: curve25519-sha256 kex not supported in WinSCP

This request has been added to the tracker:
https://winscp.net/tracker/1865

Can you send me an email, so I can send you back a development version of WinSCP for testing? Please include a link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.

You will find my address (if you log in) in my forum profile.

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