block-cipher.hpp

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

#include "transform-base.hpp"
#include "../security-common.hpp"

namespace ndn {
namespace security {
namespace transform {

class BlockCipher : public Transform
{
public:
  BlockCipher(BlockCipherAlgorithm algo, CipherOperator op,
              const uint8_t* key, size_t keyLen,
              const uint8_t* iv, size_t ivLen);

private:
  virtual void
  preTransform() final;

  virtual size_t
  convert(const uint8_t* data, size_t dataLen) final;

  virtual void
  finalize() final;

  void
  fillOutputBuffer();

  bool
  isConverterEmpty() const;

private:

  void
  initializeAesCbc(const uint8_t* key, size_t keyLen,
                   const uint8_t* iv, size_t ivLen,
                   CipherOperator op);

private:
  class Impl;
  unique_ptr<Impl> m_impl;
};

unique_ptr<Transform>
blockCipher(BlockCipherAlgorithm algo, CipherOperator op,
            const uint8_t* key, size_t keyLen,
            const uint8_t* iv, size_t ivLen);

} // namespace transform
} // namespace security
} // namespace ndn

#endif // NDN_CXX_SECURITY_TRANSFORM_BLOCK_CIPHER_HPP