diff options
| author |   espie <espie@openbsd.org> | 2019-03-22 12:39:42 +0000 |
|---|---|---|
| committer | espie <espie@openbsd.org> | 2019-03-22 12:39:42 +0000 |
| commit | 66c1d05b38aa3cbfdce71a5a1a4ad7ab85fe4ceb (patch) | |
| tree | ecb993f4c960fb40b4baa808bbf828f229990022 /lib/libcxx/src/random.cpp | |
| parent | umbg now supports DCF600USB as well; adjust comment. from weerd@ (diff) | |
| download | wireguard-openbsd-66c1d05b38aa3cbfdce71a5a1a4ad7ab85fe4ceb.tar.xz wireguard-openbsd-66c1d05b38aa3cbfdce71a5a1a4ad7ab85fe4ceb.zip | |
that "device" is an abstraction to the underlying OS PRNG.
In OpenBSD's case, we know it has optimal entropy properties,
so just say so.
okay mikeb@, "why not" deraadt@
Diffstat (limited to 'lib/libcxx/src/random.cpp')
| -rw-r--r-- | lib/libcxx/src/random.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/libcxx/src/random.cpp b/lib/libcxx/src/random.cpp index 4a2468368d0..9efac7a66a7 100644 --- a/lib/libcxx/src/random.cpp +++ b/lib/libcxx/src/random.cpp @@ -34,6 +34,7 @@ #include <nacl/nacl_random.h> #endif +#include <limits> _LIBCPP_BEGIN_NAMESPACE_STD @@ -173,7 +174,11 @@ random_device::operator()() double random_device::entropy() const _NOEXCEPT { +#ifdef __OpenBSD__ + return std::numeric_limits<unsigned int>::digits; +#else return 0; +#endif } _LIBCPP_END_NAMESPACE_STD |