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Scrub keys from memory just before scope end.

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Partially implements #74.

Securely erases keys from memory after they are no longer needed. Might have a
performance impact, which I haven't measured (perf measurements aren't
generally reliable on laptops).

Thanks to @stoffu for the suggestion to specialize the pod_to_hex/hex_to_pod
functions. Using overloads + SFINAE instead generalizes it so other types can
be marked as scrubbed without adding more boilerplate.
This commit is contained in:
moneromooo-monero 2017-10-26 10:21:06 +01:00 • committed by Jonathan Roelofs
parent 38ecd0526e
commit 7193b89fe5
6 changed files with 60 additions and 23 deletions
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2
contrib/epee/include/span.h
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@ -108,7 +108,7 @@ namespace epee
template<typename T>
constexpr bool has_padding() noexcept
{
return !std::is_pod<T>() || alignof(T) != 1;
return !std::is_pod<T>::value || alignof(T) != 1;
}
//! \return Cast data from `src` as `span<const std::uint8_t>`.