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diff --git a/src/libstrongswan/plugins/botan/botan_util_keys.h b/src/libstrongswan/plugins/botan/botan_util_keys.h
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+++ b/src/libstrongswan/plugins/botan/botan_util_keys.h
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+/*
+ * Copyright (C) 2018 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * Helper functions to load public and private keys in a generic way
+ *
+ * @defgroup botan_util_keys botan_util_keys
+ * @{ @ingroup botan_p
+ */
+
+#ifndef BOTAN_UTIL_KEYS_H_
+#define BOTAN_UTIL_KEYS_H_
+
+#include <botan/ffi.h>
+
+#include <credentials/keys/public_key.h>
+#include <credentials/keys/private_key.h>
+
+/**
+ * Load a public key in subjectPublicKeyInfo encoding
+ *
+ * Accepts a BUILD_BLOB_ASN1_DER argument.
+ *
+ * @param type		type of the key
+ * @param args		builder_part_t argument list
+ * @return 			loaded key, NULL on failure
+ */
+public_key_t *botan_public_key_load(key_type_t type, va_list args);
+
+/**
+ * Load a private key in PKCS#8 encoding
+ *
+ * Accepts a BUILD_BLOB_ASN1_DER argument.
+ *
+ * @param type		type of the key
+ * @param args		builder_part_t argument list
+ * @return 			loaded key, NULL on failure
+ */
+private_key_t *botan_private_key_load(key_type_t type, va_list args);
+
+#endif /** BOTAN_UTIL_KEYS_H_ @}*/