Botan  1.11.15
Public Member Functions | Protected Member Functions
Botan::AEAD_Filter Class Reference

#include <aead_filt.h>

Inheritance diagram for Botan::AEAD_Filter:
Botan::Transform_Filter Botan::Keyed_Filter Botan::Buffered_Filter Botan::Filter

List of all members.

Public Member Functions

 AEAD_Filter (AEAD_Mode *aead)
virtual bool attachable ()
Key_Length_Specification key_spec () const override
std::string name () const override
void set_associated_data (const byte ad[], size_t ad_len)
void set_iv (const InitializationVector &iv) override
void set_key (const SymmetricKey &key) override
bool valid_iv_length (size_t length) const override
bool valid_keylength (size_t length) const

Protected Member Functions

const Transformget_transform () const
Transformget_transform ()
virtual void send (const byte in[], size_t length)
void send (byte in)
void send (const secure_vector< byte > &in)
void send (const std::vector< byte > &in)
void send (const secure_vector< byte > &in, size_t length)
void send (const std::vector< byte > &in, size_t length)

Detailed Description

Filter interface for AEAD Modes

Definition at line 19 of file aead_filt.h.


Constructor & Destructor Documentation

Definition at line 22 of file aead_filt.h.

: Transform_Filter(aead) {}

Member Function Documentation

virtual bool Botan::Filter::attachable ( ) [inline, virtual, inherited]

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 52 of file filter.h.

{ return true; }
const Transform& Botan::Transform_Filter::get_transform ( ) const [inline, protected, inherited]

Definition at line 37 of file transform_filter.h.

{ return *m_transform; }
Transform& Botan::Transform_Filter::get_transform ( ) [inline, protected, inherited]

Definition at line 39 of file transform_filter.h.

{ return *m_transform; }
Key_Length_Specification Botan::Transform_Filter::key_spec ( ) const [override, virtual, inherited]
Returns:
object describing limits on key size

Implements Botan::Keyed_Filter.

Definition at line 69 of file transform_filter.cpp.

   {
   if(Keyed_Transform* keyed = dynamic_cast<Keyed_Transform*>(m_transform.get()))
      return keyed->key_spec();
   return Key_Length_Specification(0);
   }
std::string Botan::Transform_Filter::name ( ) const [override, virtual, inherited]
Returns:
descriptive name for this filter

Implements Botan::Filter.

Definition at line 36 of file transform_filter.cpp.

Referenced by Botan::Transform_Filter::set_key().

   {
   return m_transform->name();
   }
void Botan::Filter::send ( const byte  in[],
size_t  length 
) [protected, virtual, inherited]
Parameters:
insome input for the filter
lengththe length of in

Reimplemented in Botan::Threaded_Fork.

Definition at line 28 of file filter.cpp.

References Botan::Filter::write().

Referenced by Botan::Compression_Decompression_Filter::end_msg(), Botan::Hex_Encoder::end_msg(), Botan::Base64_Encoder::end_msg(), Botan::Hex_Decoder::end_msg(), Botan::Base64_Decoder::end_msg(), Botan::Hash_Filter::end_msg(), Botan::MAC_Filter::end_msg(), Botan::Compression_Decompression_Filter::flush(), Botan::Compression_Decompression_Filter::start_msg(), Botan::Compression_Decompression_Filter::write(), Botan::StreamCipher_Filter::write(), Botan::Hex_Decoder::write(), and Botan::Base64_Decoder::write().

   {
   if(!length)
      return;

   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();
   }
void Botan::Filter::send ( byte  in) [inline, protected, inherited]
Parameters:
insome input for the filter

Definition at line 65 of file filter.h.

References Botan::Filter::send().

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

{ send(&in, 1); }
void Botan::Filter::send ( const secure_vector< byte > &  in) [inline, protected, inherited]
Parameters:
insome input for the filter

Definition at line 70 of file filter.h.

References Botan::Filter::send().

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

{ send(&in[0], in.size()); }
void Botan::Filter::send ( const std::vector< byte > &  in) [inline, protected, inherited]
Parameters:
insome input for the filter

Definition at line 75 of file filter.h.

References Botan::Filter::send().

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

{ send(&in[0], in.size()); }
void Botan::Filter::send ( const secure_vector< byte > &  in,
size_t  length 
) [inline, protected, inherited]
Parameters:
insome input for the filter
lengththe number of bytes of in to send

Definition at line 81 of file filter.h.

         {
         send(&in[0], length);
         }
void Botan::Filter::send ( const std::vector< byte > &  in,
size_t  length 
) [inline, protected, inherited]
Parameters:
insome input for the filter
lengththe number of bytes of in to send

Definition at line 90 of file filter.h.

         {
         send(&in[0], length);
         }
void Botan::AEAD_Filter::set_associated_data ( const byte  ad[],
size_t  ad_len 
) [inline]

Set associated data that is not included in the ciphertext but that should be authenticated. Must be called after set_key and before end_msg.

Parameters:
adthe associated data
ad_lenlength of add in bytes

Definition at line 32 of file aead_filt.h.

References Botan::get_transform().

         {
         dynamic_cast<AEAD_Mode&>(get_transform()).set_associated_data(ad, ad_len);
         }
void Botan::Transform_Filter::set_iv ( const InitializationVector iv) [override, virtual, inherited]

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 from Botan::Keyed_Filter.

Definition at line 56 of file transform_filter.cpp.

   {
   m_nonce.update(iv);
   }
void Botan::Transform_Filter::set_key ( const SymmetricKey key) [override, virtual, inherited]

Set the key of this filter

Parameters:
keythe key to use

Implements Botan::Keyed_Filter.

Definition at line 61 of file transform_filter.cpp.

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

   {
   if(Keyed_Transform* keyed = dynamic_cast<Keyed_Transform*>(m_transform.get()))
      keyed->set_key(key);
   else if(key.length() != 0)
      throw std::runtime_error("Transform " + name() + " does not accept keys");
   }
bool Botan::Transform_Filter::valid_iv_length ( size_t  length) const [override, virtual, inherited]

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 from Botan::Keyed_Filter.

Definition at line 76 of file transform_filter.cpp.

   {
   return m_transform->valid_nonce_length(length);
   }
bool Botan::Keyed_Filter::valid_keylength ( size_t  length) const [inline, inherited]

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

Definition at line 42 of file key_filt.h.

         {
         return key_spec().valid_keylength(length);
         }

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