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/*
* X.509 SIGNED Object
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_X509_OBJECT_H_
#define BOTAN_X509_OBJECT_H_
#include <botan/asn1_obj.h>
#include <botan/alg_id.h>
#include <vector>
namespace Botan {
class Public_Key;
class RandomNumberGenerator;
/**
* This class represents abstract X.509 signed objects as in the X.500
* SIGNED macro
*/
class BOTAN_PUBLIC_API(2,0) X509_Object : public ASN1_Object
{
public:
/**
* The underlying data that is to be or was signed
* @return data that is or was signed
*/
std::vector<uint8_t> tbs_data() const;
/**
* @return signature on tbs_data()
*/
const std::vector<uint8_t>& signature() const { return m_sig; }
/**
* @return signed body
*/
const std::vector<uint8_t>& signed_body() const { return m_tbs_bits; }
/**
* @return signature algorithm that was used to generate signature
*/
const AlgorithmIdentifier& signature_algorithm() const { return m_sig_algo; }
/**
* @return hash algorithm that was used to generate signature
*/
std::string hash_used_for_signature() const;
/**
* Create a signed X509 object.
* @param signer the signer used to sign the object
* @param rng the random number generator to use
* @param alg_id the algorithm identifier of the signature scheme
* @param tbs the tbs bits to be signed
* @return signed X509 object
*/
static std::vector<uint8_t> make_signed(class PK_Signer* signer,
RandomNumberGenerator& rng,
const AlgorithmIdentifier& alg_id,
const secure_vector<uint8_t>& tbs);
/**
* Check the signature on this data
* @param key the public key purportedly used to sign this data
* @return true if the signature is valid, otherwise false
*/
bool check_signature(const Public_Key& key) const;
/**
* Check the signature on this data
* @param key the public key purportedly used to sign this data
* the pointer will be deleted after use
* @return true if the signature is valid, otherwise false
*/
bool check_signature(const Public_Key* key) const;
/**
* DER encode an X509_Object
* See @ref ASN1_Object::encode_into()
*/
void encode_into(class DER_Encoder& to) const override;
/**
* Decode a BER encoded X509_Object
* See @ref ASN1_Object::decode_from()
*/
void decode_from(class BER_Decoder& from) override;
/**
* @return BER encoding of this
*/
std::vector<uint8_t> BER_encode() const;
/**
* @return PEM encoding of this
*/
std::string PEM_encode() const;
X509_Object(const X509_Object&) = default;
X509_Object& operator=(const X509_Object&) = default;
virtual std::string PEM_label() const = 0;
virtual std::vector<std::string> alternate_PEM_labels() const
{ return std::vector<std::string>(); }
virtual ~X509_Object() = default;
protected:
X509_Object() = default;
/**
* Decodes from src as either DER or PEM data, then calls force_decode()
*/
void load_data(DataSource& src);
private:
virtual void force_decode() = 0;
AlgorithmIdentifier m_sig_algo;
std::vector<uint8_t> m_tbs_bits;
std::vector<uint8_t> m_sig;
};
}
#endif
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