Botan::ECDSA_Signature Class Reference

#include <ecdsa_sig.h>

Public Member Functions
MemoryVector< byte >	DER_encode () const
	ECDSA_Signature ()
	ECDSA_Signature (const BigInt &r, const BigInt &s)
	ECDSA_Signature (const MemoryRegion< byte > &ber)
MemoryVector< byte >	get_concatenation () const
const BigInt &	get_r () const
const BigInt &	get_s () const
bool	operator== (const ECDSA_Signature &other) const

Friends
class	ECDSA_Signature_Decoder

Detailed Description

Class representing an ECDSA signature

Definition at line 21 of file ecdsa_sig.h.

Constructor & Destructor Documentation

ECDSA_Signature() [1/3]

Botan::ECDSA_Signature::ECDSA_Signature ( )

inline

Definition at line 26 of file ecdsa_sig.h.

{}

Referenced by Botan::decode_concatenation(), and operator==().

ECDSA_Signature() [2/3]

Botan::ECDSA_Signature::ECDSA_Signature ( const BigInt & r, const BigInt & s )

inline

Definition at line 27 of file ecdsa_sig.h.

                                                        :
         m_r(r), m_s(s) {}

ECDSA_Signature() [3/3]

Botan::ECDSA_Signature::ECDSA_Signature

(

const MemoryRegion< byte > &

ber

)

Definition at line 13 of file ecdsa_sig.cpp.

   {
   BER_Decoder(ber)
      .start_cons(SEQUENCE)
         .decode(m_r)
         .decode(m_s)
      .end_cons()
      .verify_end();
   }

References Botan::BER_Decoder::BER_Decoder(), and Botan::SEQUENCE.

Member Function Documentation

DER_encode()

MemoryVector< byte > Botan::ECDSA_Signature::DER_encode

(

)

const

Definition at line 23 of file ecdsa_sig.cpp.

   {
   return DER_Encoder()
      .start_cons(SEQUENCE)
        .encode(get_r())
        .encode(get_s())
      .end_cons()
      .get_contents();
   }

References Botan::DER_Encoder::encode(), Botan::DER_Encoder::end_cons(), Botan::DER_Encoder::get_contents(), get_r(), get_s(), Botan::SEQUENCE, and Botan::DER_Encoder::start_cons().

Referenced by Botan::EAC1_1_obj< Derived >::check_signature().

get_concatenation()

MemoryVector< byte > Botan::ECDSA_Signature::get_concatenation

(

)

const

return the r||s

Definition at line 33 of file ecdsa_sig.cpp.

   {
   // use the larger
   const size_t enc_len = m_r > m_s ? m_r.bytes() : m_s.bytes();
 
   SecureVector<byte> sv_r = BigInt::encode_1363(m_r, enc_len);
   SecureVector<byte> sv_s = BigInt::encode_1363(m_s, enc_len);
 
   SecureVector<byte> result(sv_r);
   result += sv_s;
   return result;
   }

References Botan::BigInt::encode_1363().

Referenced by Botan::EAC1_1_obj< Derived >::get_concat_sig().

get_r()

const BigInt & Botan::ECDSA_Signature::get_r ( ) const

inline

Definition at line 32 of file ecdsa_sig.h.

{ return m_r; }

Referenced by DER_encode(), and operator==().

get_s()

const BigInt & Botan::ECDSA_Signature::get_s ( ) const

inline

Definition at line 33 of file ecdsa_sig.h.

{ return m_s; }

Referenced by DER_encode(), and operator==().

operator==()

bool Botan::ECDSA_Signature::operator== ( const ECDSA_Signature & other ) const

inline

Definition at line 42 of file ecdsa_sig.h.

         {
         return (get_r() == other.get_r() && get_s() == other.get_s());
         }

References ECDSA_Signature(), get_r(), and get_s().

Friends And Related Symbol Documentation

ECDSA_Signature_Decoder

friend class ECDSA_Signature_Decoder

friend

Definition at line 24 of file ecdsa_sig.h.

References ECDSA_Signature_Decoder.

Referenced by ECDSA_Signature_Decoder.

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

• src/cert/cvc/ecdsa_sig.h
• src/cert/cvc/ecdsa_sig.cpp