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Send ext-info-c with kex algorithms - #622

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hierynomus merged 1 commit into
hierynomus:masterfrom
fmeum:fhenneke_ext_info_fix
Jul 20, 2020
Merged

hierynomus merged 1 commit into
hierynomus:masterfrom
fmeum:fhenneke_ext_info_fix

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@fmeum

@fmeum fmeum commented Jul 20, 2020 •

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Some SSH servers will not honor the negotiated rsa-sha2-256 algorithms
if the client does not indicate support for SSH_MSG_EXT_INFO messages.
Since we only need to accept these messages, but are free to ignore
their contents, adding support amounts to sending "ext-info-c" with our
kex algorithm proposal.

Fixes #608

Some SSH servers will not honor the negotiated rsa-sha2-256 algorithms
if the client does not indicate support for SSH_MSG_EXT_INFO messages.
Since we only need to accept these messages, but are free to ignore
their contents, adding support amounts to sending "ext-info-c" with our
kex algorithm proposal.
@fmeum
fmeum force-pushed the fhenneke_ext_info_fix branch from 0cd47c1 to 48dff32 Compare July 20, 2020 10:37
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Possible issue with negotiating rsa-sha2-512

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