Botan::EMSA3_Raw Class Reference

#include <emsa3.h>

Inheritance diagram for Botan::EMSA3_Raw:

Public Member Functions
SecureVector< byte >	encoding_of (const MemoryRegion< byte > &, size_t, RandomNumberGenerator &rng)
SecureVector< byte >	raw_data ()
void	update (const byte[], size_t)
bool	verify (const MemoryRegion< byte > &, const MemoryRegion< byte > &, size_t)

Detailed Description

EMSA3_Raw which is EMSA3 without a hash or digest id (which according to QCA docs is "identical to PKCS#11's CKM_RSA_PKCS mechanism", something I have not confirmed)

Definition at line 49 of file emsa3.h.

Member Function Documentation

encoding_of()

SecureVector< byte > Botan::EMSA3_Raw::encoding_of ( const MemoryRegion< byte > & msg, size_t output_bits, RandomNumberGenerator & rng )

virtual

Return the encoding of a message

Parameters

msg	the result of raw_data()
output_bits	the desired output bit size
rng	a random number generator

Returns

encoded signature

Implements Botan::EMSA.

Definition at line 128 of file emsa3.cpp.

   {
   return emsa3_encoding(msg, output_bits, 0, 0);
   }

raw_data()

SecureVector< byte > Botan::EMSA3_Raw::raw_data ( )

virtual

Returns

raw hash

Implements Botan::EMSA.

Definition at line 118 of file emsa3.cpp.

   {
   SecureVector<byte> ret;
   std::swap(ret, message);
   return ret;
   }

References std::swap().

update()

void Botan::EMSA3_Raw::update ( const byte input[], size_t length )

virtual

Add more data to the signature computation

Parameters

input	some data
length	length of input in bytes

Implements Botan::EMSA.

Definition at line 110 of file emsa3.cpp.

   {
   message += std::make_pair(input, length);
   }

verify()

bool Botan::EMSA3_Raw::verify ( const MemoryRegion< byte > & coded, const MemoryRegion< byte > & raw, size_t key_bits )

virtual

Verify the encoding

Parameters

coded	the received (coded) message representative
raw	the computed (local, uncoded) message representative
key_bits	the size of the key in bits

Returns

true if coded is a valid encoding of raw, otherwise false

Implements Botan::EMSA.

Definition at line 138 of file emsa3.cpp.

   {
   try
      {
      return (coded == emsa3_encoding(raw, key_bits, 0, 0));
      }
   catch(...)
      {
      return false;
      }
   }

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

• src/pk_pad/emsa3/emsa3.h
• src/pk_pad/emsa3/emsa3.cpp