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/*
* X.509 Public Key
* (C) 1999-2010 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_X509_PUBLIC_KEY_H__
#define BOTAN_X509_PUBLIC_KEY_H__
#include <botan/pipe.h>
#include <botan/pk_keys.h>
#include <botan/alg_id.h>
#include <botan/pubkey_enums.h>
namespace Botan {
/**
* This namespace contains functions for handling X.509 public keys
*/
namespace X509 {
/**
* BER encode a key
* @param key the public key to encode
* @return BER encoding of this key
*/
BOTAN_DLL MemoryVector<byte> BER_encode(const Public_Key& key);
/**
* PEM encode a public key into a string.
* @param key the key to encode
* @return PEM encoded key
*/
BOTAN_DLL std::string PEM_encode(const Public_Key& key);
/**
* Create a public key from a data source.
* @param source the source providing the DER or PEM encoded key
* @return new public key object
*/
BOTAN_DLL Public_Key* load_key(DataSource& source);
/**
* Create a public key from a file
* @param filename pathname to the file to load
* @return new public key object
*/
BOTAN_DLL Public_Key* load_key(const std::string& filename);
/**
* Create a public key from a memory region.
* @param enc the memory region containing the DER or PEM encoded key
* @return new public key object
*/
BOTAN_DLL Public_Key* load_key(const MemoryRegion<byte>& enc);
/**
* Copy a key.
* @param key the public key to copy
* @return new public key object
*/
BOTAN_DLL Public_Key* copy_key(const Public_Key& key);
/**
* Create the key constraints for a specific public key.
* @param pub_key the public key from which the basic set of
* constraints to be placed in the return value is derived
* @param limits additional limits that will be incorporated into the
* return value
* @return combination of key type specific constraints and
* additional limits
*/
BOTAN_DLL Key_Constraints find_constraints(const Public_Key& pub_key,
Key_Constraints limits);
/**
* Encode a key into a pipe.
* @deprecated Use PEM_encode or BER_encode instead
*
* @param key the public key to encode
* @param pipe the pipe to feed the encoded key into
* @param encoding the encoding type to use
*/
inline void encode(const Public_Key& key,
Pipe& pipe,
X509_Encoding encoding = PEM)
{
if(encoding == PEM)
pipe.write(X509::PEM_encode(key));
else
pipe.write(X509::BER_encode(key));
}
}
}
#endif
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