Botan  1.11.4
Public Member Functions | List of all members
Botan::Parallel Class Reference

#include <par_hash.h>

Inheritance diagram for Botan::Parallel:
Botan::HashFunction Botan::Buffered_Computation Botan::Algorithm

Public Member Functions

void clear ()
 
HashFunction * clone () const
 
void final (byte out[])
 
secure_vector< byte > final ()
 
virtual size_t hash_block_size () const
 
std::string name () const
 
size_t output_length () const
 
 Parallel (const std::vector< HashFunction * > &hashes)
 
secure_vector< byte > process (const byte in[], size_t length)
 
secure_vector< byte > process (const secure_vector< byte > &in)
 
secure_vector< byte > process (const std::vector< byte > &in)
 
secure_vector< byte > process (const std::string &in)
 
void update (const byte in[], size_t length)
 
void update (const secure_vector< byte > &in)
 
void update (const std::vector< byte > &in)
 
void update (const std::string &str)
 
void update (byte in)
 
template<typename T >
void update_be (const T in)
 
 ~Parallel ()
 

Detailed Description

Parallel Hashes

Definition at line 19 of file par_hash.h.

Constructor & Destructor Documentation

Botan::Parallel::Parallel ( const std::vector< HashFunction * > &  hashes)
Parameters
hashesa set of hashes to compute in parallel

Definition at line 86 of file par_hash.cpp.

Referenced by clone().

87  :
88  hashes(hash_in)
89  {
}
Botan::Parallel::~Parallel ( )

Definition at line 94 of file par_hash.cpp.

95  {
96  for(auto hash : hashes)
97  delete hash;
98  }

Member Function Documentation

void Botan::Parallel::clear ( )
virtual

Zeroize internal state

Implements Botan::Algorithm.

Definition at line 77 of file par_hash.cpp.

78  {
79  for(auto hash : hashes)
80  hash->clear();
81  }
HashFunction * Botan::Parallel::clone ( ) const
virtual
Returns
new object representing the same algorithm as *this

Implements Botan::HashFunction.

Definition at line 64 of file par_hash.cpp.

References Parallel().

65  {
66  std::vector<HashFunction*> hash_copies;
67 
68  for(auto hash : hashes)
69  hash_copies.push_back(hash->clone());
70 
71  return new Parallel(hash_copies);
72  }
void Botan::Buffered_Computation::final ( byte  out[])
inlineinherited

Complete the computation and retrieve the final result.

Parameters
outThe byte array to be filled with the result. Must be of length output_length()

Definition at line 90 of file buf_comp.h.

Referenced by Botan::LubyRackoff::decrypt_n(), Botan::Lion::decrypt_n(), Botan::X942_PRF::derive(), Botan::KDF2::derive(), Botan::KDF1::derive(), Botan::EMSA2::EMSA2(), Botan::LubyRackoff::encrypt_n(), Botan::Lion::encrypt_n(), Botan::Hash_Filter::end_msg(), Botan::MAC_Filter::end_msg(), Botan::PKCS5_PBKDF2::key_derivation(), Botan::PKCS5_PBKDF1::key_derivation(), Botan::MGF1::mask(), Botan::EMSA3::raw_data(), Botan::Randpool::reseed(), Botan::HMAC_RNG::reseed(), and Botan::TLS::write_record().

90 { final_result(out); }
secure_vector<byte> Botan::Buffered_Computation::final ( )
inlineinherited

Complete the computation and retrieve the final result.

Returns
secure_vector holding the result

Definition at line 97 of file buf_comp.h.

98  {
99  secure_vector<byte> output(output_length());
100  final_result(&output[0]);
101  return output;
102  }
virtual size_t Botan::HashFunction::hash_block_size ( ) const
inlinevirtualinherited
Returns
hash block size as defined for this algorithm

Reimplemented in Botan::Comb4P, Botan::MDx_HashFunction, Botan::Skein_512, Botan::Keccak_1600, Botan::GOST_34_11, and Botan::MD2.

Definition at line 32 of file hash.h.

Referenced by Botan::Comb4P::hash_block_size(), Botan::HMAC::HMAC(), and Botan::SSL3_MAC::SSL3_MAC().

32 { return 0; }
std::string Botan::Parallel::name ( ) const
virtual
Returns
name of this algorithm

Implements Botan::Algorithm.

Definition at line 51 of file par_hash.cpp.

References Botan::string_join().

52  {
53  std::vector<std::string> names;
54 
55  for(auto hash : hashes)
56  names.push_back(hash->name());
57 
58  return "Parallel(" + string_join(names, ',') + ")";
59  }
size_t Botan::Parallel::output_length ( ) const
virtual
Returns
length of the output of this function in bytes

Implements Botan::Buffered_Computation.

Definition at line 39 of file par_hash.cpp.

40  {
41  size_t sum = 0;
42 
43  for(auto hash : hashes)
44  sum += hash->output_length();
45  return sum;
46  }
secure_vector<byte> Botan::Buffered_Computation::process ( const byte  in[],
size_t  length 
)
inlineinherited

Update and finalize computation. Does the same as calling update() and final() consecutively.

Parameters
inthe input to process as a byte array
lengththe length of the byte array
Returns
the result of the call to final()

Definition at line 111 of file buf_comp.h.

Referenced by Botan::Randpool::add_entropy(), Botan::EME1::EME1(), Botan::RTSS_Share::split(), and Botan::Cert_Extension::Subject_Key_ID::Subject_Key_ID().

112  {
113  add_data(in, length);
114  return final();
115  }
secure_vector<byte> Botan::Buffered_Computation::process ( const secure_vector< byte > &  in)
inlineinherited

Update and finalize computation. Does the same as calling update() and final() consecutively.

Parameters
inthe input to process
Returns
the result of the call to final()

Definition at line 123 of file buf_comp.h.

124  {
125  add_data(&in[0], in.size());
126  return final();
127  }
secure_vector<byte> Botan::Buffered_Computation::process ( const std::vector< byte > &  in)
inlineinherited

Update and finalize computation. Does the same as calling update() and final() consecutively.

Parameters
inthe input to process
Returns
the result of the call to final()

Definition at line 135 of file buf_comp.h.

136  {
137  add_data(&in[0], in.size());
138  return final();
139  }
secure_vector<byte> Botan::Buffered_Computation::process ( const std::string &  in)
inlineinherited

Update and finalize computation. Does the same as calling update() and final() consecutively.

Parameters
inthe input to process as a string
Returns
the result of the call to final()

Definition at line 147 of file buf_comp.h.

References Botan::TLS::update().

148  {
149  update(in);
150  return final();
151  }
void Botan::Buffered_Computation::update ( const byte  in[],
size_t  length 
)
inlineinherited

Add new input to process.

Parameters
inthe input to process as a byte array
lengthof param in in bytes

Definition at line 34 of file buf_comp.h.

Referenced by Botan::HMAC_RNG::add_entropy(), Botan::Comb4P::clear(), Botan::LubyRackoff::decrypt_n(), Botan::Lion::decrypt_n(), Botan::X942_PRF::derive(), Botan::KDF2::derive(), Botan::KDF1::derive(), Botan::LubyRackoff::encrypt_n(), Botan::Lion::encrypt_n(), Botan::PKCS5_PBKDF2::key_derivation(), Botan::PKCS5_PBKDF1::key_derivation(), Botan::MGF1::mask(), Botan::HMAC_RNG::reseed(), Botan::time_algorithm_ops(), Botan::EMSA3::update(), and Botan::TLS::write_record().

34 { add_data(in, length); }
void Botan::Buffered_Computation::update ( const secure_vector< byte > &  in)
inlineinherited

Add new input to process.

Parameters
inthe input to process as a secure_vector

Definition at line 40 of file buf_comp.h.

41  {
42  add_data(&in[0], in.size());
43  }
void Botan::Buffered_Computation::update ( const std::vector< byte > &  in)
inlineinherited

Add new input to process.

Parameters
inthe input to process as a std::vector

Definition at line 49 of file buf_comp.h.

50  {
51  add_data(&in[0], in.size());
52  }
void Botan::Buffered_Computation::update ( const std::string &  str)
inlineinherited

Add new input to process.

Parameters
strthe input to process as a std::string. Will be interpreted as a byte array based on the strings encoding.

Definition at line 73 of file buf_comp.h.

74  {
75  add_data(reinterpret_cast<const byte*>(str.data()), str.size());
76  }
void Botan::Buffered_Computation::update ( byte  in)
inlineinherited

Process a single byte.

Parameters
inthe byte to process

Definition at line 82 of file buf_comp.h.

82 { add_data(&in, 1); }
template<typename T >
void Botan::Buffered_Computation::update_be ( const T  in)
inlineinherited

Add an integer in big-endian order

Parameters
inthe value

Definition at line 58 of file buf_comp.h.

References Botan::get_byte().

Referenced by Botan::KDF2::derive(), Botan::PKCS5_PBKDF2::key_derivation(), Botan::MGF1::mask(), and Botan::TLS::write_record().

59  {
60  for(size_t i = 0; i != sizeof(T); ++i)
61  {
62  byte b = get_byte(i, in);
63  add_data(&b, 1);
64  }
65  }
The documentation for this class was generated from the following files:
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