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diff --git a/src/libs/3rdparty/botan/src/lib/pubkey/x509_key.h b/src/libs/3rdparty/botan/src/lib/pubkey/x509_key.h
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index 0000000000..58d537bbe7
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+++ b/src/libs/3rdparty/botan/src/lib/pubkey/x509_key.h
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+/*
+* X.509 Public Key
+* (C) 1999-2010 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_X509_PUBLIC_KEY_H_
+#define BOTAN_X509_PUBLIC_KEY_H_
+
+#include <botan/pk_keys.h>
+#include <botan/types.h>
+#include <string>
+#include <vector>
+
+namespace Botan {
+
+class RandomNumberGenerator;
+class DataSource;
+
+/**
+* The two types of X509 encoding supported by Botan.
+* This enum is not used anymore, and will be removed in a future major release.
+*/
+enum X509_Encoding { RAW_BER, PEM };
+
+/**
+* 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_PUBLIC_API(2,0) std::vector<uint8_t> 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_PUBLIC_API(2,0) 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_PUBLIC_API(2,0) Public_Key* load_key(DataSource& source);
+
+#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)
+/**
+* Create a public key from a file
+* @param filename pathname to the file to load
+* @return new public key object
+*/
+BOTAN_PUBLIC_API(2,0) Public_Key* load_key(const std::string& filename);
+#endif
+
+/**
+* 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_PUBLIC_API(2,0) Public_Key* load_key(const std::vector<uint8_t>& enc);
+
+/**
+* Copy a key.
+* @param key the public key to copy
+* @return new public key object
+*/
+BOTAN_PUBLIC_API(2,0) Public_Key* copy_key(const Public_Key& key);
+
+}
+
+}
+
+#endif