In test_primegen, we loop round retrieving random data until we find
some that will permit a successful prime generation, so that we can
log only the successful attempts, and not the failures (which don't
have to be time-safe). But this itself introduces a potential mismatch
between logs, because the simplistic RNG used in testsc will have
different control flow depending on how far through a buffer of hash
data it is at the start of a given run.
random_advance_counter() gives it a fresh buffer, so calling that at
the start of a run should normalise this out. The code to do that was
already in the middle of random_read(); I've just pulled it out into a
separately callable function.
This hasn't _actually_ caused failures in test_primegen, but I'm not
sure why not. (Perhaps just luck.) But it did cause a failure in
another test of a similar nature, so before I commit _that_ test (and
the thing it's testing), I'd better fix this.
This is the README for PuTTY, a free Windows and Unix Telnet and SSH
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PuTTY is built using CMake <https://cmake.org/>. To compile in the
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cmake .
cmake --build .
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source snapshots, you'll need to do this yourself. Halibut can be
found at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
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https://www.chiark.greenend.org.uk/~sgtatham/putty/
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