I'm trying to connect to a server that only offers etm (encrypt then mac) HMACs, but the plugin fails to reach a settlement:
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Connect call failed
Transport exception: Unable to reach a settlement: [hmac-sha1, <more hmacs> ] and [hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com]
Here's the list of ETM HMAC from the same man page:The algorithms that contain "-etm" calculate the MAC after encryption (encrypt-then-mac). These are considered safer and their use recommended.
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hmac-md5-etm@openssh.com
hmac-md5-96-etm@openssh.com
hmac-sha1-etm@openssh.com
hmac-sha1-96-etm@openssh.com
hmac-sha2-256-etm@openssh.com
hmac-sha2-512-etm@openssh.com
umac-64-etm@openssh.com
umac-128-etm@openssh.com
Best regards,