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47 lines
1.8 KiB
C++
47 lines
1.8 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2020 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_CRYPTO_SECURE_ERASE_H_INCLUDED
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#define RIPPLE_CRYPTO_SECURE_ERASE_H_INCLUDED
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#include <cstddef>
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namespace ripple {
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/** Attempts to clear the given blob of memory.
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The underlying implementation of this function takes pains to
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attempt to outsmart the compiler from optimizing the clearing
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away. Please note that, despite that, remnants of content may
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remain floating around in memory as well as registers, caches
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and more.
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For a more in-depth discussion of the subject please see the
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below posts by Colin Percival:
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http://www.daemonology.net/blog/2014-09-04-how-to-zero-a-buffer.html
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http://www.daemonology.net/blog/2014-09-06-zeroing-buffers-is-insufficient.html
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*/
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void
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secure_erase(void* dest, std::size_t bytes);
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} // namespace ripple
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#endif
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