Botan::EAC_Signed_Object Class Reference

#include <signed_obj.h>

Inheritance diagram for Botan::EAC_Signed_Object:

Public Member Functions
SecureVector< byte >	BER_encode () const
bool	check_signature (class Public_Key &key, const MemoryRegion< byte > &sig) const
virtual void	encode (Pipe &pipe, X509_Encoding encoding=PEM) const =0
virtual SecureVector< byte >	get_concat_sig () const =0
std::string	PEM_encode () const
AlgorithmIdentifier	signature_algorithm () const
virtual SecureVector< byte >	tbs_data () const =0
virtual	~EAC_Signed_Object ()

Protected Member Functions
void	do_decode ()
	EAC_Signed_Object ()

Protected Attributes
std::string	PEM_label_pref
std::vector< std::string >	PEM_labels_allowed
AlgorithmIdentifier	sig_algo
SecureVector< byte >	tbs_bits

Detailed Description

This class represents abstract signed EAC object

Definition at line 22 of file signed_obj.h.

Constructor & Destructor Documentation

~EAC_Signed_Object()

virtual Botan::EAC_Signed_Object::~EAC_Signed_Object ( )

inlinevirtual

Definition at line 80 of file signed_obj.h.

{}

EAC_Signed_Object()

Botan::EAC_Signed_Object::EAC_Signed_Object ( )

inlineprotected

Definition at line 83 of file signed_obj.h.

{}

Member Function Documentation

BER_encode()

SecureVector< byte > Botan::EAC_Signed_Object::BER_encode

(

)

const

BER encode this object.

Returns

result containing the BER representation of this object.

Definition at line 19 of file signed_obj.cpp.

   {
   Pipe ber;
   ber.start_msg();
   encode(ber, RAW_BER);
   ber.end_msg();
   return ber.read_all();
   }

References encode(), Botan::Pipe::end_msg(), Botan::RAW_BER, Botan::Pipe::read_all(), and Botan::Pipe::start_msg().

Referenced by Botan::CVC_EAC::create_ado_req(), and encode().

check_signature()

bool Botan::EAC_Signed_Object::check_signature	(	class Public_Key &	key,
		const MemoryRegion< byte > &	sig ) const

Check the signature of this object.

Parameters

key	the public key associated with this signed object
sig	the signature we are checking

Returns

true if the signature was created by the private key associated with this public key

Definition at line 48 of file signed_obj.cpp.

   {
   try
      {
      std::vector<std::string> sig_info =
         split_on(OIDS::lookup(sig_algo.oid), '/');
 
      if(sig_info.size() != 2 || sig_info[0] != pub_key.algo_name())
         {
         return false;
         }
 
      std::string padding = sig_info[1];
      Signature_Format format =
         (pub_key.message_parts() >= 2) ? DER_SEQUENCE : IEEE_1363;
 
      SecureVector<byte> to_sign = tbs_data();
 
      PK_Verifier verifier(pub_key, padding, format);
      return verifier.verify_message(to_sign, sig);
      }
   catch(...)
      {
      return false;
      }
   }

References Botan::Public_Key::algo_name(), Botan::OIDS::lookup(), Botan::AlgorithmIdentifier::oid, sig_algo, and Botan::split_on().

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

do_decode()

void Botan::EAC_Signed_Object::do_decode ( )

protected

Definition at line 79 of file signed_obj.cpp.

   {
   try {
      force_decode();
   }
   catch(Decoding_Error& e)
      {
      const std::string what = e.what();
      throw Decoding_Error(PEM_label_pref + " decoding failed (" + what + ")");
      }
   catch(Invalid_Argument& e)
      {
      const std::string what = e.what();
      throw Decoding_Error(PEM_label_pref + " decoding failed (" + what + ")");
      }
   }

encode()

virtual void Botan::EAC_Signed_Object::encode ( Pipe & pipe, X509_Encoding encoding = PEM ) const

pure virtual

Write this object DER encoded into a specified pipe.

Parameters

pipe	the pipe to write the encoded object to
encoding	the encoding type to use

Implemented in Botan::EAC1_1_ADO, Botan::EAC1_1_gen_CVC< Derived >, Botan::EAC1_1_gen_CVC< EAC1_1_CVC >, and Botan::EAC1_1_gen_CVC< EAC1_1_Req >.

References BER_encode(), Botan::PEM, and PEM_encode().

Referenced by BER_encode(), and PEM_encode().

get_concat_sig()

virtual SecureVector< byte > Botan::EAC_Signed_Object::get_concat_sig ( ) const

pure virtual

Get the signature of this object as a concatenation, i.e. if the signature consists of multiple parts (like in the case of ECDSA) these will be concatenated.

Returns

signature as a concatenation of its parts

Implemented in Botan::EAC1_1_obj< Derived >, Botan::EAC1_1_obj< EAC1_1_ADO >, Botan::EAC1_1_obj< EAC1_1_CVC >, and Botan::EAC1_1_obj< EAC1_1_Req >.

References check_signature(), and signature_algorithm().

PEM_encode()

std::string Botan::EAC_Signed_Object::PEM_encode

(

)

const

PEM encode this object.

Returns

result containing the PEM representation of this object.

Definition at line 31 of file signed_obj.cpp.

   {
   Pipe pem;
   pem.start_msg();
   encode(pem, PEM);
   pem.end_msg();
   return pem.read_all_as_string();
   }

References encode(), Botan::Pipe::end_msg(), Botan::PEM, Botan::Pipe::read_all_as_string(), and Botan::Pipe::start_msg().

Referenced by encode().

signature_algorithm()

AlgorithmIdentifier Botan::EAC_Signed_Object::signature_algorithm

(

)

const

Get the signature algorithm identifier used to sign this object.

Returns

the signature algorithm identifier

Definition at line 43 of file signed_obj.cpp.

   {
   return sig_algo;
   }

References sig_algo.

Referenced by Botan::CVC_EAC::create_ado_req(), get_concat_sig(), Botan::DE_EAC::link_cvca(), and Botan::DE_EAC::sign_request().

tbs_data()

virtual SecureVector< byte > Botan::EAC_Signed_Object::tbs_data ( ) const

pure virtual

Get the TBS (to-be-signed) data in this object.

Returns

DER encoded TBS data of this object

Implemented in Botan::EAC1_1_ADO, Botan::EAC1_1_gen_CVC< Derived >, Botan::EAC1_1_gen_CVC< EAC1_1_CVC >, and Botan::EAC1_1_gen_CVC< EAC1_1_Req >.

Member Data Documentation

PEM_label_pref

std::string Botan::EAC_Signed_Object::PEM_label_pref

protected

Definition at line 87 of file signed_obj.h.

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

PEM_labels_allowed

std::vector<std::string> Botan::EAC_Signed_Object::PEM_labels_allowed

protected

Definition at line 88 of file signed_obj.h.

sig_algo

AlgorithmIdentifier Botan::EAC_Signed_Object::sig_algo

protected

Definition at line 85 of file signed_obj.h.

Referenced by check_signature(), and signature_algorithm().

tbs_bits

SecureVector<byte> Botan::EAC_Signed_Object::tbs_bits

protected

Definition at line 86 of file signed_obj.h.

Referenced by Botan::EAC1_1_gen_CVC< Derived >::encode(), Botan::EAC1_1_obj< Derived >::init(), Botan::EAC1_1_gen_CVC< Derived >::make_signed(), and Botan::EAC1_1_gen_CVC< Derived >::tbs_data().

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

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