Botan::PK_Encryptor_EME Class Reference

#include <pubkey.h>

Inheritance diagram for Botan::PK_Encryptor_EME:

Public Member Functions
std::vector< byte >	encrypt (const byte in[], size_t length, RandomNumberGenerator &rng) const
template<typename Alloc >
std::vector< byte >	encrypt (const std::vector< byte, Alloc > &in, RandomNumberGenerator &rng) const
size_t	maximum_input_size () const
	PK_Encryptor_EME (const Public_Key &key, const std::string &eme)
	~PK_Encryptor_EME ()

Detailed Description

Encryption with an MR algorithm and an EME.

Definition at line 409 of file pubkey.h.

Constructor & Destructor Documentation

Botan::PK_Encryptor_EME::PK_Encryptor_EME	(	const Public_Key &	key,
		const std::string &	eme
	)

Construct an instance.

Parameters

key	the key to use inside the decryptor
eme	the EME to use

Definition at line 24 of file pubkey.cpp.

References Botan::Public_Key::algo_name(), Botan::get_eme(), Botan::Global_State_Management::global_state(), and Botan::Algorithm_Factory::Engine_Iterator::next().

   {
   Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());

   while(const Engine* engine = i.next())
      {
      op = engine->get_encryption_op(key);
      if(op)
         break;
      }

   if(!op)
      throw Lookup_Error("PK_Encryptor_EME: No working engine for " +
                         key.algo_name());

   eme = (eme_name == "Raw") ? nullptr : get_eme(eme_name);
   }

Botan::PK_Encryptor_EME::~PK_Encryptor_EME ( )

inline

Definition at line 422 of file pubkey.h.

{ delete op; delete eme; }

Member Function Documentation

std::vector<byte> Botan::PK_Encryptor::encrypt ( const byte  in[], size_t  length, RandomNumberGenerator &  rng  ) const

inlineinherited

Encrypt a message.

Parameters

in	the message as a byte array
length	the length of the above byte array
rng	the random number source to use

Returns

encrypted message

Definition at line 48 of file pubkey.h.

Referenced by Botan::TLS::Client_Key_Exchange::Client_Key_Exchange(), Botan::KeyPair::encryption_consistency_check(), and Botan::PK_Encryptor_Filter::end_msg().

         {
         return enc(in, length, rng);
         }

template<typename Alloc >

std::vector<byte> Botan::PK_Encryptor::encrypt ( const std::vector< byte, Alloc > &  in, RandomNumberGenerator &  rng  ) const

inlineinherited

Encrypt a message.

Parameters

in	the message
rng	the random number source to use

Returns

encrypted message

Definition at line 61 of file pubkey.h.

References rng.

         {
         return enc(&in[0], in.size(), rng);
         }

size_t Botan::PK_Encryptor_EME::maximum_input_size ( ) const

virtual

Return the maximum allowed message size in bytes.

Returns

maximum message size in bytes

Implements Botan::PK_Encryptor.

Definition at line 73 of file pubkey.cpp.

References Botan::PK_Ops::Encryption::max_input_bits(), and Botan::EME::maximum_input_size().

Referenced by Botan::KeyPair::encryption_consistency_check().

   {
   if(!eme)
      return (op->max_input_bits() / 8);
   else
      return eme->maximum_input_size(op->max_input_bits());
   }

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The documentation for this class was generated from the following files:

• src/pubkey/pubkey.h
• src/pubkey/pubkey.cpp