Botan::PK_Encryptor_EME Class Reference

#include <pubkey.h>

Inheritance diagram for Botan::PK_Encryptor_EME:

Public Member Functions
SecureVector< byte >	encrypt (const byte in[], size_t length, RandomNumberGenerator &rng) const
SecureVector< byte >	encrypt (const MemoryRegion< byte > &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 398 of file pubkey.h.

Constructor & Destructor Documentation

PK_Encryptor_EME()

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 25 of file pubkey.cpp.

   {
   Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
 
   op = 0;
 
   while(const Engine* engine = i.next())
      {
      op = engine->get_encryption_op(key);
      if(op)
         break;
      }
 
   if(!op)
      throw Lookup_Error("Encryption with " + key.algo_name() + " not supported");
 
   eme = (eme_name == "Raw") ? 0 : get_eme(eme_name);
   }

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

Referenced by Botan::get_pk_encryptor().

~PK_Encryptor_EME()

Botan::PK_Encryptor_EME::~PK_Encryptor_EME ( )

inline

Definition at line 411 of file pubkey.h.

{ delete op; delete eme; }

Member Function Documentation

encrypt() [1/2]

SecureVector< 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.

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

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

encrypt() [2/2]

SecureVector< byte > Botan::PK_Encryptor::encrypt ( const MemoryRegion< byte > & 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 60 of file pubkey.h.

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

References Botan::MemoryRegion< T >::size().

maximum_input_size()

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 75 of file pubkey.cpp.

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

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

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

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