Botan::ASN1 Namespace Reference

Functions
bool	maybe_BER (DataSource &source)
std::vector< uint8_t >	put_in_sequence (const std::vector< uint8_t > &contents)
std::vector< uint8_t >	put_in_sequence (const uint8_t bits[], size_t len)
std::string	to_string (const BER_Object &obj)

Function Documentation

maybe_BER()

bool Botan::ASN1::maybe_BER

(

DataSource &

src

)

Heuristics tests; is this object possibly BER?

Parameters

src	a data source that will be peeked at but not modified

Definition at line 219 of file asn1_obj.cpp.

   {
   uint8_t first_u8;
   if(!source.peek_byte(first_u8))
      {
      BOTAN_ASSERT_EQUAL(source.read_byte(first_u8), 0, "Expected EOF");
      throw Stream_IO_Error("ASN1::maybe_BER: Source was empty");
      }
 
   const auto cons_seq = static_cast<uint8_t>(ASN1_Class::Constructed) | static_cast<uint8_t>(ASN1_Type::Sequence);
   if(first_u8 == cons_seq)
      return true;
   return false;
   }

References BOTAN_ASSERT_EQUAL, Botan::Constructed, Botan::DataSource::peek_byte(), Botan::DataSource::read_byte(), and Botan::Sequence.

Referenced by Botan::X509_Object::load_data(), and Botan::X509::load_key().

put_in_sequence() [1/2]

std::vector< uint8_t > Botan::ASN1::put_in_sequence

(

const std::vector< uint8_t > &

contents

)

Definition at line 192 of file asn1_obj.cpp.

   {
   return ASN1::put_in_sequence(contents.data(), contents.size());
   }

References put_in_sequence().

Referenced by put_in_sequence(), Botan::X509_Object::tbs_data(), and Botan::OCSP::Response::verify_signature().

put_in_sequence() [2/2]

std::vector< uint8_t > Botan::ASN1::put_in_sequence	(	const uint8_t	bits[],
		size_t	len
	)

Definition at line 197 of file asn1_obj.cpp.

   {
   std::vector<uint8_t> output;
   DER_Encoder(output)
      .start_sequence()
         .raw_bytes(bits, len)
      .end_cons();
   return output;
   }

References Botan::DER_Encoder::end_cons(), Botan::DER_Encoder::raw_bytes(), and Botan::DER_Encoder::start_sequence().

to_string()

std::string Botan::ASN1::to_string

(

const BER_Object &

obj

)

Definition at line 210 of file asn1_obj.cpp.

   {
   return std::string(cast_uint8_ptr_to_char(obj.bits()),
                      obj.length());
   }

References Botan::BER_Object::bits(), Botan::cast_uint8_ptr_to_char(), and Botan::BER_Object::length().

Referenced by Botan::ASN1_Time::decode_from(), Botan::ASN1_String::decode_from(), Botan::AlternativeName::decode_from(), and Botan::GeneralName::decode_from().