Botan
1.11.15
|
#include <filters.h>
Public Member Functions | |
virtual bool | attachable () |
virtual void | end_msg () |
Key_Length_Specification | key_spec () const override |
std::string | name () const |
void | set_iv (const InitializationVector &iv) |
void | set_key (const SymmetricKey &key) |
virtual void | start_msg () |
StreamCipher_Filter (StreamCipher *cipher) | |
StreamCipher_Filter (StreamCipher *cipher, const SymmetricKey &key) | |
StreamCipher_Filter (const std::string &cipher) | |
StreamCipher_Filter (const std::string &cipher, const SymmetricKey &key) | |
bool | valid_iv_length (size_t iv_len) const |
bool | valid_keylength (size_t length) const |
void | write (const byte input[], size_t input_len) |
Protected Member Functions | |
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) |
Construct a stream cipher filter.
cipher | a cipher object to use |
Definition at line 17 of file algo_filt.cpp.
: buffer(DEFAULT_BUFFERSIZE), m_cipher(cipher) { }
Botan::StreamCipher_Filter::StreamCipher_Filter | ( | StreamCipher * | cipher, |
const SymmetricKey & | key | ||
) |
Construct a stream cipher filter.
cipher | a cipher object to use |
key | the key to use inside this filter |
Definition at line 25 of file algo_filt.cpp.
: buffer(DEFAULT_BUFFERSIZE), m_cipher(cipher) { m_cipher->set_key(key); }
Botan::StreamCipher_Filter::StreamCipher_Filter | ( | const std::string & | cipher | ) |
Construct a stream cipher filter.
cipher | the name of the desired cipher |
Definition at line 36 of file algo_filt.cpp.
: buffer(DEFAULT_BUFFERSIZE) { m_cipher.reset(Algo_Registry<StreamCipher>::global_registry().make(sc_name)); }
Botan::StreamCipher_Filter::StreamCipher_Filter | ( | const std::string & | cipher, |
const SymmetricKey & | key | ||
) |
Construct a stream cipher filter.
cipher | the name of the desired cipher |
key | the key to use inside this filter |
Definition at line 45 of file algo_filt.cpp.
: buffer(DEFAULT_BUFFERSIZE) { m_cipher.reset(Algo_Registry<StreamCipher>::global_registry().make(sc_name)); m_cipher->set_key(key); }
virtual bool Botan::Filter::attachable | ( | ) | [inline, virtual, inherited] |
Check whether this filter is an attachable filter.
Reimplemented in Botan::SecureQueue, and Botan::DataSink.
Definition at line 52 of file filter.h.
{ return true; }
virtual void Botan::Filter::end_msg | ( | ) | [inline, virtual, inherited] |
Notify that the current message is finished; flush buffers and do end-of-message processing (if any).
Reimplemented in Botan::MAC_Filter, Botan::Hash_Filter, Botan::Base64_Decoder, Botan::Hex_Decoder, Botan::Base64_Encoder, Botan::Hex_Encoder, and Botan::Compression_Decompression_Filter.
Definition at line 46 of file filter.h.
{}
Key_Length_Specification Botan::StreamCipher_Filter::key_spec | ( | ) | const [inline, override, virtual] |
Implements Botan::Keyed_Filter.
Definition at line 61 of file filters.h.
{ return m_cipher->key_spec(); }
std::string Botan::StreamCipher_Filter::name | ( | ) | const [inline, virtual] |
Implements Botan::Filter.
Definition at line 37 of file filters.h.
{ return m_cipher->name(); }
void Botan::Filter::send | ( | const byte | in[], |
size_t | length | ||
) | [protected, virtual, inherited] |
in | some input for the filter |
length | the 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(), 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] |
in | some 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] |
in | some 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] |
in | some 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] |
void Botan::Filter::send | ( | const std::vector< byte > & | in, |
size_t | length | ||
) | [inline, protected, inherited] |
void Botan::StreamCipher_Filter::set_iv | ( | const InitializationVector & | iv | ) | [virtual] |
Set the initialization vector for this filter.
iv | the initialization vector to set |
Reimplemented from Botan::Keyed_Filter.
Definition at line 56 of file algo_filt.cpp.
References Botan::OctetString::begin(), and Botan::OctetString::length().
{ m_cipher->set_iv(iv.begin(), iv.length()); }
void Botan::StreamCipher_Filter::set_key | ( | const SymmetricKey & | key | ) | [inline, virtual] |
Set the key of this filter.
key | the key to set |
Implements Botan::Keyed_Filter.
Definition at line 59 of file filters.h.
{ m_cipher->set_key(key); }
virtual void Botan::Filter::start_msg | ( | ) | [inline, virtual, inherited] |
Start a new message. Must be closed by end_msg() before another message can be started.
Reimplemented in Botan::Compression_Decompression_Filter.
Definition at line 40 of file filter.h.
{}
bool Botan::StreamCipher_Filter::valid_iv_length | ( | size_t | length | ) | const [inline, virtual] |
Check whether an IV length is valid for this filter
length | the IV length to be checked for validity |
Reimplemented from Botan::Keyed_Filter.
Definition at line 46 of file filters.h.
{ return m_cipher->valid_iv_length(iv_len); }
bool Botan::Keyed_Filter::valid_keylength | ( | size_t | length | ) | const [inline, inherited] |
Check whether a key length is valid for this filter
length | the key length to be checked for validity |
Definition at line 42 of file key_filt.h.
{ return key_spec().valid_keylength(length); }
void Botan::StreamCipher_Filter::write | ( | const byte | input[], |
size_t | input_len | ||
) | [virtual] |
Write input data
input | data |
input_len | length of input in bytes |
Implements Botan::Filter.
Definition at line 64 of file algo_filt.cpp.
References Botan::Filter::send().
{ while(length) { size_t copied = std::min<size_t>(length, buffer.size()); m_cipher->cipher(input, &buffer[0], copied); send(buffer, copied); input += copied; length -= copied; } }