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wallet: wipe seed from memory where appropriate

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moneromooo-monero 2018-07-07 00:03:15 +01:00
parent b780cf4db1
commit ea37614efe
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GPG key ID: 686F07454D6CEFC3
19 changed files with 653 additions and 144 deletions
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28
contrib/epee/include/wipeable_string.h
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@ -28,28 +28,43 @@
#pragma once
#include <boost/optional/optional_fwd.hpp>
#include <stddef.h>
#include <vector>
#include <string>
#include "fnv1.h"
namespace epee
{
class wipeable_string
{
public:
typedef char value_type;
wipeable_string() {}
wipeable_string(const wipeable_string &other);
wipeable_string(wipeable_string &&other);
wipeable_string(const std::string &other);
wipeable_string(std::string &&other);
wipeable_string(const char *s);
wipeable_string(const char *s, size_t len);
~wipeable_string();
void wipe();
void push_back(char c);
void pop_back();
void operator+=(char c);
void operator+=(const std::string &s);
void operator+=(const epee::wipeable_string &s);
void operator+=(const char *s);
void append(const char *ptr, size_t len);
char pop_back();
const char *data() const noexcept { return buffer.data(); }
char *data() noexcept { return buffer.data(); }
size_t size() const noexcept { return buffer.size(); }
size_t length() const noexcept { return buffer.size(); }
bool empty() const noexcept { return buffer.empty(); }
void trim();
void split(std::vector<wipeable_string> &fields) const;
boost::optional<wipeable_string> parse_hexstr() const;
void resize(size_t sz);
void reserve(size_t sz);
void clear();
@ -65,3 +80,14 @@ namespace epee
std::vector<char> buffer;
};
}
namespace std
{
template<> struct hash<epee::wipeable_string>
{
size_t operator()(const epee::wipeable_string &s) const
{
return epee::fnv::FNV1a(s.data(), s.size());
}
};
}