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https://issues.apache.org/jira/browse/SSHD-704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17224175#comment-17224175
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Matt Sicker commented on SSHD-704:
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After comparing the attached Java files with my attempt from last weekend, I
think I've discovered the incompatibility: the existing implementations of
KeyExchange all encode {{e}} and {{f}} as MPInts rather than as fixed length
strings. The shared secret {{k}} is still supposed to be encoded as an MPInt,
but the XDH keys are not.
> Add support for [email protected] key exchange
> ----------------------------------------------------------
>
> Key: SSHD-704
> URL: https://issues.apache.org/jira/browse/SSHD-704
> Project: MINA SSHD
> Issue Type: Improvement
> Affects Versions: 1.4.0
> Reporter: Lyor Goldstein
> Priority: Major
> Labels: features
> Attachments: Curve25519.java, Curve25519SHA256AbstractDH.java,
> Curve25519SHA256DHFactory.java, Curve25519SHA256KeyExchange.java,
> Curve25519SHA256KeyExchangeFactory.java
>
>
> See
> * [[email protected] kexy exchange
> specification|https://git.libssh.org/projects/libssh.git/tree/doc/[email protected]]
> * [Secure Shell (SSH) Key Exchange Method using Curve25519 and
> Curve448|https://tools.ietf.org/html/draft-ietf-curdle-ssh-curves-06]
> * [JEP 324: Key Agreement with Curve25519 and
> Curve448|http://openjdk.java.net/jeps/324]
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