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/*
* DLIES
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_DLIES_H__
#define BOTAN_DLIES_H__
#include <botan/pubkey.h>
#include <botan/mac.h>
#include <botan/kdf.h>
namespace Botan {
/**
* DLIES Encryption
*/
class BOTAN_DLL DLIES_Encryptor : public PK_Encryptor
{
public:
DLIES_Encryptor(const PK_Key_Agreement_Key&,
KDF* kdf,
MessageAuthenticationCode* mac,
size_t mac_key_len = 20);
void set_other_key(const std::vector<byte>&);
private:
std::vector<byte> enc(const byte[], size_t,
RandomNumberGenerator&) const override;
size_t maximum_input_size() const override;
std::vector<byte> m_other_key, m_my_key;
PK_Key_Agreement m_ka;
std::unique_ptr<KDF> m_kdf;
std::unique_ptr<MessageAuthenticationCode> m_mac;
size_t m_mac_keylen;
};
/**
* DLIES Decryption
*/
class BOTAN_DLL DLIES_Decryptor : public PK_Decryptor
{
public:
DLIES_Decryptor(const PK_Key_Agreement_Key&,
KDF* kdf,
MessageAuthenticationCode* mac,
size_t mac_key_len = 20);
private:
secure_vector<byte> do_decrypt(byte& valid_mask,
const byte in[], size_t in_len) const override;
std::vector<byte> m_my_key;
PK_Key_Agreement m_ka;
std::unique_ptr<KDF> m_kdf;
std::unique_ptr<MessageAuthenticationCode> m_mac;
size_t m_mac_keylen;
};
}
#endif
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