secvec.cc

/*
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Copyright (c) 2022, Stable Cloud Computing, Inc.
 
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
 
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   this software without specific prior written permission.
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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*/
#include <crypto/secvec.h>
 
using namespace scc::crypto;
 
template <typename T>
SecVec<T>::SecVec(typename std::vector<T>::size_type sz) : std::vector<T>(sz)
{
}
 
template <typename T>
SecVec<T>::SecVec(typename std::vector<T>::size_type sz, const typename std::vector<T>::value_type& value) : std::vector<T>(sz, value)
{
}
 
template <typename T>
SecVec<T>::~SecVec()
{
    explicit_bzero(std::vector<T>::data(), std::vector<T>::size());
}
 
template <typename T>
void SecVec<T>::clear() noexcept
{
    explicit_bzero(std::vector<T>::data(), std::vector<T>::size());
    std::vector<T>::clear();
}
 
template <typename T>
void SecVec<T>::resize(typename std::vector<T>::size_type count)
{
    if (std::vector<T>::size() > count)
    {
        explicit_bzero(std::vector<T>::data()+count, std::vector<T>::size()-count);
    }
    std::vector<T>::resize(count);
}
 
template <typename T>
void SecVec<T>::resize(typename std::vector<T>::size_type count, const typename std::vector<T>::value_type& value)
{
    if (std::vector<T>::size() > count)
    {
        explicit_bzero(std::vector<T>::data()+count, std::vector<T>::size()-count);
    }
    std::vector<T>::resize(count, value);
}
 
template SecVec<unsigned char>::SecVec(typename std::vector<unsigned char>::size_type);
template SecVec<unsigned char>::SecVec(typename std::vector<unsigned char>::size_type, const typename std::vector<unsigned char>::value_type&);
template SecVec<unsigned char>::~SecVec();
template void SecVec<unsigned char>::clear() noexcept;
template void SecVec<unsigned char>::resize(typename std::vector<unsigned char>::size_type);
template void SecVec<unsigned char>::resize(typename std::vector<unsigned char>::size_type, const typename std::vector<unsigned char>::value_type&);
 
template SecVec<char>::SecVec(typename std::vector<char>::size_type);
template SecVec<char>::SecVec(typename std::vector<char>::size_type, const typename std::vector<char>::value_type&);
template SecVec<char>::~SecVec();
template void SecVec<char>::clear() noexcept;
template void SecVec<char>::resize(typename std::vector<char>::size_type);
template void SecVec<char>::resize(typename std::vector<char>::size_type, const typename std::vector<char>::value_type&);
 
template <typename T>
std::istream& operator >>(std::istream& is, scc::crypto::SecVec<T>& sv)
{
    char ch;
    while (is.get(ch))
    {
        sv.push_back(ch);
    }
    if (is.fail() && !is.eof())
    {
        throw std::runtime_error("secure vector stream read error");
    }
    return is;
}
 
template std::istream& operator >><unsigned char>(std::istream& is, scc::crypto::SecVec<unsigned char>& sv);
template std::istream& operator >><char>(std::istream& is, scc::crypto::SecVec<char>& sv);
 
template <typename T>
std::ostream& operator <<(std::ostream& os, const scc::crypto::SecVec<T>& sv)
{
    os.write((const char*)sv.data(), sv.size()*sizeof(T));
    if (os.fail())
    {
        throw std::runtime_error("secure vector stream write error");
    }
    return os;
}
 
template std::ostream& operator <<<unsigned char>(std::ostream& os, const scc::crypto::SecVec<unsigned char>& sv);
template std::ostream& operator <<<char>(std::ostream& os, const scc::crypto::SecVec<char>& sv);