blob: dcc0cf0801413f92fd9b63b6570fe32e6ef1a73d [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/**
* Copyright (C) 2013 Regents of the University of California.
* @author: Jeff Thompson <jefft0@remap.ucla.edu>
* See COPYING for copyright and distribution information.
*/
#ifndef NDN_SIGNATURE_HPP
#define NDN_SIGNATURE_HPP
namespace ndn {
/**
* A Signature is storage for the signature-related information (info and value) in a Data packet.
*/
class Signature {
public:
struct Error : public std::runtime_error { Error(const std::string &what) : std::runtime_error(what) {} };
enum {
Sha256 = 0,
Sha256WithRsa = 1
};
Signature()
: type_(-1)
{
}
Signature(const Block &info, const Block &value)
: value_(value)
{
setInfo(info);
}
operator bool() const
{
return type_ != -1;
}
uint32_t
getType() const
{
return type_;
}
const Block&
getInfo() const
{
info_.encode(); // will do nothing if wire already exists
return info_;
}
void
setInfo(const Block &info)
{
info_ = info;
if (info_.hasWire() || info_.hasValue())
{
info_.parse();
const Block &signatureType = info_.get(Tlv::SignatureType);
type_ = readNonNegativeInteger(signatureType);
}
else
{
type_ = -1;
}
}
const Block&
getValue() const
{
value_.encode(); // will do nothing if wire already exists
return value_;
}
void
setValue(const Block &value)
{
value_ = value;
}
void
reset()
{
type_ = -1;
info_.reset();
value_.reset();
}
protected:
int32_t type_;
mutable Block info_;
mutable Block value_;
};
} // namespace ndn
#endif // NDN_SIGNATURE_HPP