Botan::ECB_Decryption Class Reference

#include <ecb.h>

Inheritance diagram for Botan::ECB_Decryption:

Public Member Functions
virtual bool	attachable ()
	ECB_Decryption (BlockCipher *ciph, BlockCipherModePaddingMethod *pad)
	ECB_Decryption (BlockCipher *ciph, BlockCipherModePaddingMethod *pad, const SymmetricKey &key)
std::string	name () const
virtual void	set_iv (const InitializationVector &iv)
void	set_key (const SymmetricKey &key)
virtual void	start_msg ()
virtual bool	valid_iv_length (size_t length) const
bool	valid_keylength (size_t key_len) const
	~ECB_Decryption ()

Protected Member Functions
void	buffer_reset ()
size_t	buffered_block_size () const
size_t	current_position () const
void	send (byte in)
void	send (const byte in[], size_t length)
void	send (const MemoryRegion< byte > &in)
void	send (const MemoryRegion< byte > &in, size_t length)

Detailed Description

ECB Decryption

Definition at line 55 of file ecb.h.

Constructor & Destructor Documentation

ECB_Decryption() [1/2]

Botan::ECB_Decryption::ECB_Decryption	(	BlockCipher *	ciph,
		BlockCipherModePaddingMethod *	pad )

Definition at line 112 of file ecb.cpp.

                                                                  :
   Buffered_Filter(ciph->parallel_bytes(), 1)
   {
   cipher = ciph;
   padder = pad;
 
   temp.resize(buffered_block_size());
   }

References Botan::Buffered_Filter::buffered_block_size(), and Botan::Buffered_Filter::Buffered_Filter().

Referenced by Botan::get_cipher_mode().

ECB_Decryption() [2/2]

Botan::ECB_Decryption::ECB_Decryption	(	BlockCipher *	ciph,
		BlockCipherModePaddingMethod *	pad,
		const SymmetricKey &	key )

Definition at line 125 of file ecb.cpp.

                                                        :
   Buffered_Filter(ciph->parallel_bytes(), 1)
   {
   cipher = ciph;
   padder = pad;
 
   temp.resize(buffered_block_size());
 
   cipher->set_key(key);
   }

References Botan::Buffered_Filter::buffered_block_size(), and Botan::Buffered_Filter::Buffered_Filter().

~ECB_Decryption()

Botan::ECB_Decryption::~ECB_Decryption

(

)

Definition at line 141 of file ecb.cpp.

   {
   delete cipher;
   delete padder;
   }

Member Function Documentation

attachable()

virtual bool Botan::Filter::attachable ( )

inlinevirtualinherited

Check whether this filter is an attachable filter.

Returns

true if this filter is attachable, false otherwise

Reimplemented in Botan::DataSink, and Botan::SecureQueue.

Definition at line 50 of file filter.h.

{ return true; }

buffer_reset()

void Botan::Buffered_Filter::buffer_reset ( )

inlineprotectedinherited

Reset the buffer position

Definition at line 77 of file buf_filt.h.

{ buffer_pos = 0; }

Referenced by Botan::CBC_Decryption::set_iv(), and Botan::CBC_Encryption::set_iv().

buffered_block_size()

size_t Botan::Buffered_Filter::buffered_block_size ( ) const

inlineprotectedinherited

Returns

block size of inputs

Definition at line 67 of file buf_filt.h.

{ return main_block_mod; }

Referenced by Botan::CBC_Decryption::CBC_Decryption(), Botan::CBC_Decryption::CBC_Decryption(), Botan::ECB_Decryption::ECB_Decryption(), Botan::ECB_Decryption::ECB_Decryption(), Botan::ECB_Encryption::ECB_Encryption(), Botan::ECB_Encryption::ECB_Encryption(), Botan::XTS_Decryption::XTS_Decryption(), Botan::XTS_Decryption::XTS_Decryption(), Botan::XTS_Encryption::XTS_Encryption(), and Botan::XTS_Encryption::XTS_Encryption().

current_position()

size_t Botan::Buffered_Filter::current_position ( ) const

inlineprotectedinherited

Returns

current position in the buffer

Definition at line 72 of file buf_filt.h.

{ return buffer_pos; }

name()

std::string Botan::ECB_Decryption::name ( ) const

virtual

Returns

descriptive name for this filter

Implements Botan::Filter.

Definition at line 150 of file ecb.cpp.

   {
   return (cipher->name() + "/ECB/" + padder->name());
   }

send() [1/4]

void Botan::Filter::send ( byte in )

inlineprotectedinherited

Parameters

in	some input for the filter

Definition at line 63 of file filter.h.

{ send(&in, 1); }

References send().

Referenced by send().

send() [2/4]

void Botan::Filter::send ( const byte in[], size_t length )

protectedinherited

Parameters

in	some input for the filter
length	the length of in

Definition at line 28 of file filter.cpp.

   {
   bool nothing_attached = true;
   for(size_t j = 0; j != total_ports(); ++j)
      if(next[j])
         {
         if(write_queue.size())
            next[j]->write(&write_queue[0], write_queue.size());
         next[j]->write(input, length);
         nothing_attached = false;
         }
 
   if(nothing_attached)
      write_queue += std::make_pair(input, length);
   else
      write_queue.clear();
   }

Referenced by Botan::Base64_Decoder::end_msg(), Botan::Base64_Encoder::end_msg(), Botan::Bzip_Compression::end_msg(), Botan::Bzip_Decompression::end_msg(), Botan::Hash_Filter::end_msg(), Botan::Hex_Decoder::end_msg(), Botan::Hex_Encoder::end_msg(), Botan::MAC_Filter::end_msg(), Botan::PK_Decryptor_Filter::end_msg(), Botan::PK_Encryptor_Filter::end_msg(), Botan::PK_Signer_Filter::end_msg(), Botan::PK_Verifier_Filter::end_msg(), Botan::Zlib_Compression::end_msg(), Botan::Zlib_Decompression::end_msg(), Botan::Bzip_Compression::flush(), Botan::Zlib_Compression::flush(), send(), Botan::Base64_Decoder::write(), Botan::Bzip_Compression::write(), Botan::Bzip_Decompression::write(), Botan::Chain::write(), Botan::Fork::write(), Botan::Hex_Decoder::write(), Botan::StreamCipher_Filter::write(), Botan::Zlib_Compression::write(), and Botan::Zlib_Decompression::write().

send() [3/4]

void Botan::Filter::send ( const MemoryRegion< byte > & in )

inlineprotectedinherited

Parameters

in	some input for the filter

Definition at line 68 of file filter.h.

{ send(&in[0], in.size()); }

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

Referenced by send().

send() [4/4]

void Botan::Filter::send ( const MemoryRegion< byte > & in, size_t length )

inlineprotectedinherited

Parameters

in	some input for the filter
length	the number of bytes of in to send

Definition at line 74 of file filter.h.

         {
         send(&in[0], length);
         }

References send().

set_iv()

void Botan::Keyed_Filter::set_iv ( const InitializationVector & iv )

virtualinherited

Set the initialization vector of this filter. Note: you should call set_iv() only after you have called set_key()

Parameters

iv	the initialization vector to use

Reimplemented in Botan::CBC_Decryption, Botan::CBC_Encryption, Botan::CFB_Decryption, Botan::CFB_Encryption, Botan::CTS_Decryption, Botan::CTS_Encryption, Botan::EAX_Base, Botan::StreamCipher_Filter, Botan::XTS_Decryption, and Botan::XTS_Encryption.

Definition at line 13 of file basefilt.cpp.

   {
   if(iv.length() != 0)
      throw Invalid_IV_Length(name(), iv.length());
   }

References Botan::Invalid_IV_Length::Invalid_IV_Length(), Botan::OctetString::length(), and Botan::Filter::name().

Referenced by Botan::algorithm_kat(), Botan::get_cipher(), and set_key().

set_key()

void Botan::ECB_Decryption::set_key ( const SymmetricKey & key )

inlinevirtual

Set the key of this filter

Parameters

key	the key to use

Implements Botan::Keyed_Filter.

Definition at line 61 of file ecb.h.

{ cipher->set_key(key); }

start_msg()

virtual void Botan::Filter::start_msg ( )

inlinevirtualinherited

Start a new message. Must be closed by end_msg() before another message can be started.

Reimplemented in Botan::Bzip_Compression, Botan::Bzip_Decompression, Botan::EAX_Base, Botan::PBE_PKCS5v15, Botan::PBE_PKCS5v20, Botan::Zlib_Compression, and Botan::Zlib_Decompression.

Definition at line 38 of file filter.h.

{}

valid_iv_length()

virtual bool Botan::Keyed_Filter::valid_iv_length ( size_t length ) const

inlinevirtualinherited

Check whether an IV length is valid for this filter

Parameters

length

the IV length to be checked for validity

Returns

true if the IV length is valid, false otherwise

Reimplemented in Botan::CBC_Decryption, Botan::CBC_Encryption, Botan::CFB_Decryption, Botan::CFB_Encryption, Botan::CTS_Decryption, Botan::CTS_Encryption, Botan::EAX_Base, Botan::StreamCipher_Filter, Botan::XTS_Decryption, and Botan::XTS_Encryption.

Definition at line 48 of file key_filt.h.

         { return (length == 0); }

Referenced by Botan::algorithm_kat().

valid_keylength()

bool Botan::ECB_Decryption::valid_keylength ( size_t length ) const

inlinevirtual

Check whether a key length is valid for this filter

Parameters

length

the key length to be checked for validity

Returns

true if the key length is valid, false otherwise

Implements Botan::Keyed_Filter.

Definition at line 63 of file ecb.h.

         { return cipher->valid_keylength(key_len); }

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

• src/filters/modes/ecb/ecb.h
• src/filters/modes/ecb/ecb.cpp