Botan  1.10.9
Public Member Functions | List of all members
Botan::EME Class Referenceabstract

#include <eme.h>

Inheritance diagram for Botan::EME:
Botan::EME1 Botan::EME_PKCS1v15

Public Member Functions

SecureVector< bytedecode (const byte in[], size_t in_length, size_t key_length) const
 
SecureVector< bytedecode (const MemoryRegion< byte > &in, size_t key_length) const
 
SecureVector< byteencode (const byte in[], size_t in_length, size_t key_length, RandomNumberGenerator &rng) const
 
SecureVector< byteencode (const MemoryRegion< byte > &in, size_t key_length, RandomNumberGenerator &rng) const
 
virtual size_t maximum_input_size (size_t keybits) const =0
 
virtual ~EME ()
 

Detailed Description

Encoding Method for Encryption

Definition at line 19 of file eme.h.

Constructor & Destructor Documentation

virtual Botan::EME::~EME ( )
inlinevirtual

Definition at line 73 of file eme.h.

73 {}

Member Function Documentation

SecureVector< byte > Botan::EME::decode ( const byte  in[],
size_t  in_length,
size_t  key_length 
) const

Decode an input

Parameters
inthe encoded plaintext
in_lengthlength of encoded plaintext in bytes
key_lengthlength of the key in bits
Returns
plaintext

Definition at line 35 of file eme.cpp.

37  {
38  return unpad(msg, msg_len, key_bits);
39  }
SecureVector< byte > Botan::EME::decode ( const MemoryRegion< byte > &  in,
size_t  key_length 
) const

Decode an input

Parameters
inthe encoded plaintext
key_lengthlength of the key in bits
Returns
plaintext

Definition at line 44 of file eme.cpp.

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

46  {
47  return unpad(&msg[0], msg.size(), key_bits);
48  }
SecureVector< byte > Botan::EME::encode ( const byte  in[],
size_t  in_length,
size_t  key_length,
RandomNumberGenerator rng 
) const

Encode an input

Parameters
inthe plaintext
in_lengthlength of plaintext in bytes
key_lengthlength of the key in bits
rnga random number generator
Returns
encoded plaintext

Definition at line 15 of file eme.cpp.

18  {
19  return pad(msg, msg_len, key_bits, rng);
20  }
RandomNumberGenerator * rng
Definition: global_rng.cpp:165
SecureVector< byte > Botan::EME::encode ( const MemoryRegion< byte > &  in,
size_t  key_length,
RandomNumberGenerator rng 
) const

Encode an input

Parameters
inthe plaintext
key_lengthlength of the key in bits
rnga random number generator
Returns
encoded plaintext

Definition at line 25 of file eme.cpp.

References rng, and Botan::MemoryRegion< T >::size().

28  {
29  return pad(&msg[0], msg.size(), key_bits, rng);
30  }
RandomNumberGenerator * rng
Definition: global_rng.cpp:165
virtual size_t Botan::EME::maximum_input_size ( size_t  keybits) const
pure virtual

Return the maximum input size in bytes we can support

Parameters
keybitsthe size of the key in bits
Returns
upper bound of input in bytes

Implemented in Botan::EME1, and Botan::EME_PKCS1v15.

Referenced by Botan::PK_Encryptor_EME::maximum_input_size().


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