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/*
* Parallel
* (C) 1999-2009 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/par_hash.h>
#include <botan/parsing.h>
namespace Botan {
/*
* Update the hash
*/
void Parallel::add_data(const byte input[], size_t length)
{
for(auto hash : hashes)
hash->update(input, length);
}
/*
* Finalize the hash
*/
void Parallel::final_result(byte out[])
{
u32bit offset = 0;
for(auto hash : hashes)
{
hash->final(out + offset);
offset += hash->output_length();
}
}
/*
* Return output size
*/
size_t Parallel::output_length() const
{
size_t sum = 0;
for(auto hash : hashes)
sum += hash->output_length();
return sum;
}
/*
* Return the name of this type
*/
std::string Parallel::name() const
{
std::vector<std::string> names;
for(auto hash : hashes)
names.push_back(hash->name());
return "Parallel(" + string_join(names, ',') + ")";
}
/*
* Return a clone of this object
*/
HashFunction* Parallel::clone() const
{
std::vector<HashFunction*> hash_copies;
for(auto hash : hashes)
hash_copies.push_back(hash->clone());
return new Parallel(hash_copies);
}
/*
* Clear memory of sensitive data
*/
void Parallel::clear()
{
for(auto hash : hashes)
hash->clear();
}
/*
* Parallel Constructor
*/
Parallel::Parallel(const std::vector<HashFunction*>& hash_in) :
hashes(hash_in)
{
}
/*
* Parallel Destructor
*/
Parallel::~Parallel()
{
for(auto hash : hashes)
delete hash;
}
}
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