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in Java FTP by (120 points)

The server we connect to will be limited in the near future to the following algorithms...

Host key algorithms:

  • rsa-sha2-256     <- support added in v7.3.0?
  • rsa-sha2-512     <- support added in v7.3.0?
  • ssh-ed25519

Key exchange algorithms:

  • curve25519-sha256
  • diffie-hellman-group16-sha512
  • diffie-hellman-group18-sha512

From looking through the API documentation, it appears that some of the host key algorithms are covered but I didn't see any of the key exchange algorithms listed.  Can anyone confirm that these are not currently supported? and if they are not currently supported, are there plans to implement these anytime soon?

1 Answer

0 votes
by (8.6k points)
  • rsa-sha2-256    Supported
  • rsa-sha2-512    Supported
  • ssh-ed25519    Not Supported
Supported Key exchange Algorithms: 
 
KEY_EXCHANGE_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1
KEY_EXCHANGE_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256
KEY_EXCHANGE_DIFFIE_HELLMAN_GROUP1_SHA1
KEY_EXCHANGE_DIFFIE_HELLMAN_GROUP14_SHA1
KEY_EXCHANGE_DIFFIE_HELLMAN_GROUP14_SHA256
KEY_EXCHANGE_ECDH_SHA2_NISTP256
KEY_EXCHANGE_ECDH_SHA2_NISTP384
KEY_EXCHANGE_ECDH_SHA2_NISTP521
by (290 points)
Hi Stuart,

Does EDT have any plans to support
diffie-hellman-group16-sha512 and
diffie-hellman-group18-sha512
in the near future?

We have customers who are connecting to MoveIT and they will drop the support of dh-group14 and dh-group-exchange by July. This will be a huge impact to anyone using EDT to connect to MoveIT.

https://community.progress.com/s/article/Cloud-SSH-Ciphers-Key-Exchanges-and-Hashes
by (8.6k points)
Yes,  diffie-hellman-group16-sha512 and diffie-hellman-group18-sha512 are down to be added (we’ve already added them to our .net library).
by (8.6k points)
We'll put it in the next major release
by (290 points)
Thank you, Stuart. Last question, when is the next major release coming out?
by (8.6k points)
Hopefully next week
by (290 points)
Thank you! We will wait for the release so we can update our product.
by (8.6k points)
You can add your email address to our new release notification list. That way you will get an automatic notification. If you would like to do this please go to the below link:

https://us6.list-manage.com/subscribe?u=1470880e5c79af5990d964893&id=8c04143fb4.

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