tpm-private-key.hpp

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
#ifndef NDN_TPM_PRIVATE_KEY_HPP
#define NDN_TPM_PRIVATE_KEY_HPP

#include "../../lite/security/ec-private-key-lite.hpp"
#include "../../lite/security/rsa-private-key-lite.hpp"
#include "../../util/blob.hpp"
#include "../key-params.hpp"
#include "../security-common.hpp"
#include "../../encoding/oid.hpp"
#include "../../c/encrypt/algo/encrypt-params-types.h"

namespace ndn {

class OID;
class DerNode;

class TpmPrivateKey {
public:
  class Error : public std::runtime_error
  {
  public:
    Error(const std::string& what)
    : std::runtime_error(what)
    {
    }
  };

  TpmPrivateKey()
  : keyType_((KeyType)-1)
  {}

  void
  loadPkcs1
    (const uint8_t* encoding, size_t encodingLength,
     KeyType keyType = (KeyType)-1);

  void
  loadPkcs8(const uint8_t* encoding, size_t encodingLength);

  Blob
  derivePublicKey() const;

  Blob
  decrypt
    (const uint8_t* cipherText, size_t cipherTextLength,
     ndn_EncryptAlgorithmType algorithmType = ndn_EncryptAlgorithmType_RsaOaep);

  Blob
  sign(const uint8_t *data, size_t dataLength, DigestAlgorithm digestAlgorithm);

  Blob
  toPkcs1(bool includeParameters = true);

  Blob
  toPkcs8(bool includeParameters = true);

  static ptr_lib::shared_ptr<TpmPrivateKey>
  generatePrivateKey(const KeyParams& keyParams);

private:
  static Blob
  encodePkcs8PrivateKey
    (const std::vector<uint8_t>& privateKeyDer, const OID& oid,
     const ptr_lib::shared_ptr<DerNode>& parameters);

  static Blob
  encodeSubjectPublicKeyInfo
    (const OID& oid, const ptr_lib::shared_ptr<DerNode>& parameters,
     const ptr_lib::shared_ptr<DerNode>& bitString);

  static void
  decodeEcPrivateKey
    (const ptr_lib::shared_ptr<DerNode>& algorithmParameters,
     const Blob& privateKeyDer, EcPrivateKeyLite& privateKey);

  static OID
  getEcOid(const EcPrivateKeyLite& ecPrivateKey);

  // Disable the copy constructor and assignment operator.
  TpmPrivateKey(const TpmPrivateKey& other);
  TpmPrivateKey& operator=(const TpmPrivateKey& other);

  KeyType keyType_;
  ptr_lib::shared_ptr<EcPrivateKeyLite> ecPrivateKey_;
  ptr_lib::shared_ptr<RsaPrivateKeyLite> rsaPrivateKey_;
};

}

#endif