mirror of
https://github.com/oxen-io/lokinet
synced 2023-12-14 06:53:00 +01:00
273270916e
This commit reflects changes to clang-format rules. Unfortunately, these rule changes create a massive change to the codebase, which causes an apparent rewrite of git history. Git blame's --ignore-rev flag can be used to ignore this commit when attempting to `git blame` some code.
68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
#include <pow.hpp>
|
|
|
|
#include <crypto/crypto.hpp>
|
|
#include <util/buffer.hpp>
|
|
|
|
#include <cmath>
|
|
|
|
namespace llarp
|
|
{
|
|
PoW::~PoW() = default;
|
|
|
|
bool
|
|
PoW::DecodeKey(const llarp_buffer_t& /*k*/, llarp_buffer_t* /*val*/)
|
|
{
|
|
// TODO: implement me
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
PoW::BEncode(llarp_buffer_t* buf) const
|
|
{
|
|
// TODO: implement me
|
|
if (!bencode_start_dict(buf))
|
|
return false;
|
|
return bencode_end(buf);
|
|
}
|
|
|
|
bool
|
|
PoW::IsValid(llarp_time_t now) const
|
|
{
|
|
if (now - timestamp > extendedLifetime)
|
|
return false;
|
|
|
|
ShortHash digest;
|
|
std::array<byte_t, MaxSize> tmp;
|
|
llarp_buffer_t buf(tmp);
|
|
// encode
|
|
if (!BEncode(&buf))
|
|
return false;
|
|
// rewind
|
|
buf.sz = buf.cur - buf.base;
|
|
buf.cur = buf.base;
|
|
// hash
|
|
if (!CryptoManager::instance()->shorthash(digest, buf))
|
|
return false;
|
|
// check bytes required
|
|
uint32_t required = std::floor(std::log(extendedLifetime.count()));
|
|
for (uint32_t idx = 0; idx < required; ++idx)
|
|
{
|
|
if (digest[idx])
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
std::ostream&
|
|
PoW::print(std::ostream& stream, int level, int spaces) const
|
|
{
|
|
Printer printer(stream, level, spaces);
|
|
|
|
printer.printAttribute("pow timestamp", timestamp.count());
|
|
printer.printAttribute("lifetime", extendedLifetime.count());
|
|
printer.printAttribute("nonce", nonce);
|
|
|
|
return stream;
|
|
}
|
|
|
|
} // namespace llarp
|