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GH #1614
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Rather than running over the entire heap list which may be long.
Fixes #1369
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ISO C++ reserves names with double underscores in them
Closes #512
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Ugh Windows headers y u so nasty.
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Kind of a vestigial thing from an earlier iteration of the module
design, and never useful to specify anymore since taking all the cpp
files is what you want exactly 100% of the time.
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Convert Travis build configuration to a single var instead of 4 tuple.
Makes it much easier to review the builds in the Travis web UI.
Adds sanitizer builds for Clang on both Linux and OS X. Clang is a different
compiler from GCC and its sanitizers may catch things GCC does not.
I have no idea if Apple's Clang has some magic sanitizer sauce stock
LLVM does not, so maybe sanitizer build on OS X can be skipped.
Adds Linux cross compile targets for ARM32, ARM64, PPC64, and MinGW x86
using the cross compiler available in Trusty. All of them build and are
set up to run through qemu/wine. All of the tests currently fail and
so are marked as expected fail in the Travis matrix.
The ARM test runs seem to have thread problems; ARM32 thread creation just fails
with an exception, as if pthreads was disabled. All other tests pass ok for ARM32.
On Aarch64, it looks like there is a hard crash the first time the library tries
creating a thread. Both of these might be due to statically linking the binary?
I have been unable to convince Ubuntu's qemu-ppc64 to execute binaries compiled by
Ubuntu's ppc64 cross compiler. I'm downloading an Ubuntu ISO to try this in a VM.
Running under Wine exposes several issues, both in Wine and Botan. Many functions are
stubs and it appears that entropy collection fails as a result. This triggers a bug
in the FFI tests which causes a crash there.
A pox on time zones; _mkgmtime is a MSVC extension and is not available on MinGW GCC.
Add a last resort call that just uses the localzone variant instead.
Adds valgrind target, remove a bogus poison in pubkey.cpp (it was effectively
asserting that all of RSA was const time which is sadly not true at all).
Moves -Wshadow to maintainer mode for GCC - GCC 4.8 has a noisy variant of -Wshadow
which warns if a parameter masks a function name, but this comes up all the time
in constructors. Later GCCs no longer warn about this (even with -Wshadow), so the
warnings are never fixed, but they cause noise in CI output and hide interesting
warnings like
warning: vec_lvsl is deprecated for little endian; use assignment for unaligned loads and stores [-Wdeprecated]
__vector unsigned char perm = vec_lvsl(0, static_cast<u32bit*>(nullptr));
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Remove Entropy_Accumulator, instead have entropy sources directly
add entropy to the RNG.
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Add OS functions get_process_id, get_processor_timestamp, and
get_system_timestamp_ns. HMAC_RNG uses the pid call to detect forks to
initiate a reseed. It also adds the output of all three functions (the
pid, the CPU cycle counter, and the system timestamp) into the PRF input.
Calls the new OS timer functions from hres_timer entropy source.
Removes the call to QPC in es_win32 which is mostly redundant with the
one in hres_timer.
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Thinking it over I've realized this was not a good move; XP may be EOLed but is
still widely used and even VS 2015 still supports targeting XP. It's not really
the same situation as going to extra efforts for supporting SunOS 5.1 or VAX/VMS,
instead it actively broke support for something which is still widely deployed.
And for those building for XP the options are patch out the call (GH #416) or
disable win32_stats altogether in their build. I'd like to prevent downstream
distributors from having to patch, because that can get messy. And while the
design of CryptGenRandom is not disclosed it apparently has changed over time
and at one point (IIRC) used RC4 to generate outputs, so if there is any OS that
could use some extra help generating seed material it is XP.
There may be future code that really makes use of APIs added after XP - CryptoNG,
TPM support, etc and then people targetting XP will have to compile out those
modules. But it doesn't make sense to break it here for this small gain.
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By adopting MemoryStatusEx, this drops support for XP and Server 2003
which do not implement this API. This is considered a feature as these
versions are already EOLed by Microsoft.
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* GetTickCount is replaced by GetTickCount64(): see https://msdn.microsoft.com/en-us/library/windows/desktop/ms724408(v=vs.85).aspx for details
* GlobalMemoryStatus is replaced by GlobalMemoryStatusEx: see https://msdn.microsoft.com/en-us/library/windows/desktop/aa366589(v=vs.85).aspx for details
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In some cases this can offer better optimization, via devirtualization.
And it lets the user know the class is not intended for derivation.
Some discussion in GH #402
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Defaults should be fine for everyone but it makes the values more transparent
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Provides an easier way for an application to configure a list of
entropy sources they'd like to use, or add a custom entropy source to
their seeding.
Exposes some toggles for the global/default entropy sources to build.h
Adds basic entropy tests which runs the polls and does sanity checking
on the results, including compression tests if available. These are
less useful for the CSPRNG outputs but a good check for the ones
producing plain ASCII like the /proc reader.
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Instead each source that needs a buffer maintains their own.
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Update license header line to specify the terms and refer to the file,
neither of which it included before.
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