Botan  1.10.9
Public Member Functions | Protected Member Functions | List of all members
Botan::ECB_Decryption Class Reference

#include <ecb.h>

Inheritance diagram for Botan::ECB_Decryption:
Botan::Keyed_Filter Botan::Buffered_Filter Botan::Filter

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

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

Definition at line 112 of file ecb.cpp.

References Botan::Buffered_Filter::buffered_block_size(), and Botan::MemoryRegion< T >::resize().

113  :
114  Buffered_Filter(ciph->parallel_bytes(), 1)
115  {
116  cipher = ciph;
117  padder = pad;
118 
119  temp.resize(buffered_block_size());
120  }
void resize(size_t n)
Definition: secmem.h:211
Buffered_Filter(size_t block_size, size_t final_minimum)
Definition: buf_filt.cpp:18
size_t buffered_block_size() const
Definition: buf_filt.h:67
Botan::ECB_Decryption::ECB_Decryption ( BlockCipher ciph,
BlockCipherModePaddingMethod pad,
const SymmetricKey key 
)

Definition at line 125 of file ecb.cpp.

References Botan::Buffered_Filter::buffered_block_size(), Botan::MemoryRegion< T >::resize(), and Botan::SymmetricAlgorithm::set_key().

127  :
128  Buffered_Filter(ciph->parallel_bytes(), 1)
129  {
130  cipher = ciph;
131  padder = pad;
132 
133  temp.resize(buffered_block_size());
134 
135  cipher->set_key(key);
136  }
void resize(size_t n)
Definition: secmem.h:211
void set_key(const SymmetricKey &key)
Definition: sym_algo.h:60
Buffered_Filter(size_t block_size, size_t final_minimum)
Definition: buf_filt.cpp:18
size_t buffered_block_size() const
Definition: buf_filt.h:67
Botan::ECB_Decryption::~ECB_Decryption ( )

Definition at line 141 of file ecb.cpp.

142  {
143  delete cipher;
144  delete padder;
145  }

Member Function Documentation

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::SecureQueue, and Botan::DataSink.

Definition at line 50 of file filter.h.

50 { return true; }
void Botan::Buffered_Filter::buffer_reset ( )
inlineprotectedinherited

Reset the buffer position

Definition at line 77 of file buf_filt.h.

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

77 { buffer_pos = 0; }
size_t Botan::Buffered_Filter::buffered_block_size ( ) const
inlineprotectedinherited
size_t Botan::Buffered_Filter::current_position ( ) const
inlineprotectedinherited
Returns
current position in the buffer

Definition at line 72 of file buf_filt.h.

72 { return buffer_pos; }
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.

References Botan::Algorithm::name(), and Botan::BlockCipherModePaddingMethod::name().

151  {
152  return (cipher->name() + "/ECB/" + padder->name());
153  }
virtual std::string name() const =0
virtual std::string name() const =0
void Botan::Filter::send ( const byte  in[],
size_t  length 
)
protectedinherited
Parameters
insome input for the filter
lengththe length of in

Definition at line 28 of file filter.cpp.

References Botan::MemoryRegion< T >::clear(), Botan::MemoryRegion< T >::size(), and Botan::Filter::write().

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

29  {
30  bool nothing_attached = true;
31  for(size_t j = 0; j != total_ports(); ++j)
32  if(next[j])
33  {
34  if(write_queue.size())
35  next[j]->write(&write_queue[0], write_queue.size());
36  next[j]->write(input, length);
37  nothing_attached = false;
38  }
39 
40  if(nothing_attached)
41  write_queue += std::make_pair(input, length);
42  else
43  write_queue.clear();
44  }
virtual void write(const byte input[], size_t length)=0
size_t size() const
Definition: secmem.h:29
void Botan::Filter::send ( byte  in)
inlineprotectedinherited
Parameters
insome input for the filter

Definition at line 63 of file filter.h.

References Botan::Filter::send().

Referenced by Botan::Filter::send().

63 { send(&in, 1); }
void send(const byte in[], size_t length)
Definition: filter.cpp:28
void Botan::Filter::send ( const MemoryRegion< byte > &  in)
inlineprotectedinherited
Parameters
insome input for the filter

Definition at line 68 of file filter.h.

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

Referenced by Botan::Filter::send().

68 { send(&in[0], in.size()); }
void send(const byte in[], size_t length)
Definition: filter.cpp:28
size_t size() const
Definition: secmem.h:29
void Botan::Filter::send ( const MemoryRegion< byte > &  in,
size_t  length 
)
inlineprotectedinherited
Parameters
insome input for the filter
lengththe number of bytes of in to send

Definition at line 74 of file filter.h.

75  {
76  send(&in[0], length);
77  }
void send(const byte in[], size_t length)
Definition: filter.cpp:28
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
ivthe initialization vector to use

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

Definition at line 13 of file basefilt.cpp.

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

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

14  {
15  if(iv.length() != 0)
16  throw Invalid_IV_Length(name(), iv.length());
17  }
virtual std::string name() const =0
void Botan::ECB_Decryption::set_key ( const SymmetricKey key)
inlinevirtual

Set the key of this filter

Parameters
keythe key to use

Implements Botan::Keyed_Filter.

Definition at line 61 of file ecb.h.

61 { cipher->set_key(key); }
void set_key(const SymmetricKey &key)
Definition: sym_algo.h:60
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::Zlib_Decompression, Botan::EAX_Base, Botan::Bzip_Decompression, Botan::PBE_PKCS5v20, Botan::PBE_PKCS5v15, Botan::Bzip_Compression, and Botan::Zlib_Compression.

Definition at line 38 of file filter.h.

38 {}
virtual bool Botan::Keyed_Filter::valid_iv_length ( size_t  length) const
inlinevirtualinherited

Check whether an IV length is valid for this filter

Parameters
lengththe IV length to be checked for validity
Returns
true if the IV length is valid, false otherwise

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

Definition at line 48 of file key_filt.h.

Referenced by Botan::algorithm_kat().

49  { return (length == 0); }
bool Botan::ECB_Decryption::valid_keylength ( size_t  length) const
inlinevirtual

Check whether a key length is valid for this filter

Parameters
lengththe 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.

64  { return cipher->valid_keylength(key_len); }
bool valid_keylength(size_t length) const
Definition: sym_algo.h:51

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