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https://issues.apache.org/jira/browse/SSHD-1017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17216823#comment-17216823
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Jeremy Norris commented on SSHD-1017:
-------------------------------------

Yes, I don't disagree, that it would be fantastic to have a proposed extension 
that implemented a ChaCha20-Poly1305 variant that adhered more closely to RFC 
7539 :). It's just for my personal usage (with JSch and other Java based SSH 
implementations), I have to interact with OpenSSH on the other end, so until 
they implement it, it doesn't help me significantly. That's all I meant.

> Add support for chacha20-poly1...@openssh.com
> ---------------------------------------------
>
>                 Key: SSHD-1017
>                 URL: https://issues.apache.org/jira/browse/SSHD-1017
>             Project: MINA SSHD
>          Issue Type: New Feature
>            Reporter: Matt Sicker
>            Priority: Major
>
> See [protocol 
> details|https://github.com/openbsd/src/blob/master/usr.bin/ssh/PROTOCOL.chacha20poly1305].
> * [RFC 7539|https://tools.ietf.org/html/rfc7539] describes the 
> ChaCha20-Poly1305 algorithm.
> * [Dropbear 
> implementation|https://github.com/mkj/dropbear/blob/master/chachapoly.c]
> * [OpenSSH 
> implementation|https://github.com/openbsd/src/blob/master/usr.bin/ssh/cipher-chachapoly-libcrypto.c]
> The cipher is provided by Bouncycastle.
> As a bonus, this could potentially be adapted to propose an equivalent 
> AES/GCM cipher encoding to how OpenSSH implements this ChaCha20-Poly1305 
> cipher.



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