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/*
* PK Key Types
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/pk_keys.h>
#include <botan/pk_ops.h>
#include <botan/der_enc.h>
#include <botan/oids.h>
#include <botan/hash.h>
#include <botan/hex.h>
namespace Botan {
std::vector<byte> Public_Key::subject_public_key() const
{
return DER_Encoder()
.start_cons(SEQUENCE)
.encode(algorithm_identifier())
.encode(public_key_bits(), BIT_STRING)
.end_cons()
.get_contents_unlocked();
}
/*
* Default OID access
*/
OID Public_Key::get_oid() const
{
try {
return OIDS::lookup(algo_name());
}
catch(Lookup_Error&)
{
throw Lookup_Error("PK algo " + algo_name() + " has no defined OIDs");
}
}
secure_vector<byte> Private_Key::private_key_info() const
{
const size_t PKCS8_VERSION = 0;
return DER_Encoder()
.start_cons(SEQUENCE)
.encode(PKCS8_VERSION)
.encode(pkcs8_algorithm_identifier())
.encode(private_key_bits(), OCTET_STRING)
.end_cons()
.get_contents();
}
/*
* Hash of the PKCS #8 encoding for this key object
*/
std::string Private_Key::fingerprint(const std::string& alg) const
{
secure_vector<byte> buf = private_key_bits();
std::unique_ptr<HashFunction> hash(HashFunction::create(alg));
hash->update(buf);
const auto hex_print = hex_encode(hash->final());
std::string formatted_print;
for(size_t i = 0; i != hex_print.size(); i += 2)
{
formatted_print.push_back(hex_print[i]);
formatted_print.push_back(hex_print[i+1]);
if(i != hex_print.size() - 2)
formatted_print.push_back(':');
}
return formatted_print;
}
std::unique_ptr<PK_Ops::Encryption>
Public_Key::create_encryption_op(RandomNumberGenerator& /*rng*/,
const std::string& /*params*/,
const std::string& /*provider*/) const
{
throw Lookup_Error(algo_name() + " does not support encryption");
}
std::unique_ptr<PK_Ops::KEM_Encryption>
Public_Key::create_kem_encryption_op(RandomNumberGenerator& /*rng*/,
const std::string& /*params*/,
const std::string& /*provider*/) const
{
throw Lookup_Error(algo_name() + " does not support KEM encryption");
}
std::unique_ptr<PK_Ops::Verification>
Public_Key::create_verification_op(const std::string& /*params*/,
const std::string& /*provider*/) const
{
throw Lookup_Error(algo_name() + " does not support verification");
}
std::unique_ptr<PK_Ops::Decryption>
Private_Key::create_decryption_op(RandomNumberGenerator& /*rng*/,
const std::string& /*params*/,
const std::string& /*provider*/) const
{
throw Lookup_Error(algo_name() + " does not support decryption");
}
std::unique_ptr<PK_Ops::KEM_Decryption>
Private_Key::create_kem_decryption_op(RandomNumberGenerator& /*rng*/,
const std::string& /*params*/,
const std::string& /*provider*/) const
{
throw Lookup_Error(algo_name() + " does not support KEM decryption");
}
std::unique_ptr<PK_Ops::Signature>
Private_Key::create_signature_op(RandomNumberGenerator& /*rng*/,
const std::string& /*params*/,
const std::string& /*provider*/) const
{
throw Lookup_Error(algo_name() + " does not support signatures");
}
std::unique_ptr<PK_Ops::Key_Agreement>
Private_Key::create_key_agreement_op(RandomNumberGenerator& /*rng*/,
const std::string& /*params*/,
const std::string& /*provider*/) const
{
throw Lookup_Error(algo_name() + " does not support key agreement");
}
}
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