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/*
* PK Key
* (C) 1999-2010 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#include <botan/internal/pk_algs.h>
#include <botan/oids.h>
#include <stdio.h>
#if defined(BOTAN_HAS_RSA)
#include <botan/rsa.h>
#endif
#if defined(BOTAN_HAS_DSA)
#include <botan/dsa.h>
#endif
#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
#include <botan/dh.h>
#endif
#if defined(BOTAN_HAS_ECDSA)
#include <botan/ecdsa.h>
#endif
#if defined(BOTAN_HAS_GOST_34_10_2001)
#include <botan/gost_3410.h>
#endif
#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
#include <botan/nr.h>
#endif
#if defined(BOTAN_HAS_RW)
#include <botan/rw.h>
#endif
#if defined(BOTAN_HAS_ELGAMAL)
#include <botan/elgamal.h>
#endif
namespace Botan {
BOTAN_DLL Public_Key* make_public_key(const AlgorithmIdentifier& alg_id,
const MemoryRegion<byte>& key_bits)
{
const std::string alg_name = OIDS::lookup(alg_id.oid);
if(alg_name == "")
throw Decoding_Error("Unknown algorithm OID: " + alg_id.oid.as_string());
#if defined(BOTAN_HAS_RSA)
if(alg_name == "RSA")
return new RSA_PublicKey(alg_id, key_bits);
#endif
#if defined(BOTAN_HAS_RW)
if(alg_name == "RW")
return new RW_PublicKey(alg_id, key_bits);
#endif
#if defined(BOTAN_HAS_DSA)
if(alg_name == "DSA")
return new DSA_PublicKey(alg_id, key_bits);
#endif
#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
if(alg_name == "DH")
return new DH_PublicKey(alg_id, key_bits);
#endif
#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
if(alg_name == "NR")
return new NR_PublicKey(alg_id, key_bits);
#endif
#if defined(BOTAN_HAS_ELG)
if(alg_name == "ELG")
return new ElGamal_PublicKey(alg_id, key_bits);
#endif
#if defined(BOTAN_HAS_ECDSA)
if(alg_name == "ECDSA")
return new ECDSA_PublicKey(alg_id, key_bits);
#endif
#if defined(BOTAN_HAS_GOST_34_10_2001)
if(alg_name == "GOST-34.10")
return new GOST_3410_PublicKey(alg_id, key_bits);
#endif
return 0;
}
namespace {
Private_Key* get_private_key(const std::string& alg_name)
{
#if defined(BOTAN_HAS_RSA)
if(alg_name == "RSA") return new RSA_PrivateKey;
#endif
#if defined(BOTAN_HAS_DSA)
if(alg_name == "DSA") return new DSA_PrivateKey;
#endif
#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
if(alg_name == "DH") return new DH_PrivateKey;
#endif
#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
if(alg_name == "NR") return new NR_PrivateKey;
#endif
#if defined(BOTAN_HAS_RW)
if(alg_name == "RW") return new RW_PrivateKey;
#endif
#if defined(BOTAN_HAS_ELG)
if(alg_name == "ELG") return new ElGamal_PrivateKey;
#endif
#if defined(BOTAN_HAS_ECDSA)
if(alg_name == "ECDSA") return new ECDSA_PrivateKey;
#endif
#if defined(BOTAN_HAS_GOST_34_10_2001)
if(alg_name == "GOST-34.10") return new GOST_3410_PrivateKey;
#endif
return 0;
}
}
BOTAN_DLL Private_Key* make_private_key(const AlgorithmIdentifier& alg_id,
const MemoryRegion<byte>& key_bits,
RandomNumberGenerator& rng)
{
const std::string alg_name = OIDS::lookup(alg_id.oid);
if(alg_name == "")
throw Decoding_Error("Unknown algorithm OID: " + alg_id.oid.as_string());
std::auto_ptr<Private_Key> key(get_private_key(alg_name));
if(!key.get())
throw PKCS8_Exception("Unknown PK algorithm/OID: " + alg_name + ", " +
alg_id.oid.as_string());
std::auto_ptr<PKCS8_Decoder> decoder(key->pkcs8_decoder(rng));
if(!decoder.get())
throw Decoding_Error("Key does not support PKCS #8 decoding");
decoder->alg_id(alg_id);
decoder->key_bits(key_bits);
return key.release();
}
}
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