In a rekey, we expect to see the same host key again, which we enforce
by comparing its cache string, which we happened to have handy. But
certified host keys don't have cache strings, so this no longer works
reliably - the 'assert(s->keystr)' fails.
(This is what I get for making a zillion short-lived test connections
and not leaving any of them running for more than 2 minutes!)
Instead, we now keep the official public blob of the host key from the
first key exchange, and compare that to the public blob of the one in
the rekey.
This is the README for PuTTY, a free Windows and Unix Telnet and SSH
client.
PuTTY is built using CMake <https://cmake.org/>. To compile in the
simplest way (on any of Linux, Windows or Mac), run these commands in
the source directory:
cmake .
cmake --build .
Documentation (in various formats including Windows Help and Unix
`man' pages) is built from the Halibut (`.but') files in the `doc'
subdirectory using `doc/Makefile'. If you aren't using one of our
source snapshots, you'll need to do this yourself. Halibut can be
found at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
The PuTTY home web site is
https://www.chiark.greenend.org.uk/~sgtatham/putty/
If you want to send bug reports or feature requests, please read the
Feedback section of the web site before doing so. Sending one-line
reports saying `it doesn't work' will waste your time as much as
ours.
See the file LICENCE for the licence conditions.
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