1 files changed, 67 insertions, 0 deletions

diff --git a/src/libstrongswan/crypto/prfs/prf.c b/src/libstrongswan/crypto/prfs/prf.c
new file mode 100644
index 000000000..bb7015e64
--- /dev/null
+++ b/src/libstrongswan/crypto/prfs/prf.c
@@ -0,0 +1,67 @@
+/**
+ * @file prf.c
+ * 
+ * @brief Generic constructor for all prf_t
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+
+#include "prf.h"
+
+#include <crypto/hashers/hasher.h>
+#include <crypto/prfs/hmac_prf.h>
+
+
+/** 
+ * String mappings for encryption_algorithm_t.
+ */
+mapping_t pseudo_random_function_m[] = {
+{PRF_UNDEFINED, "PRF_UNDEFINED"},
+{PRF_HMAC_MD5, "PRF_HMAC_MD5"},
+{PRF_HMAC_SHA1, "PRF_HMAC_SHA1"},
+{PRF_HMAC_TIGER, "PRF_HMAC_TIGER"},
+{PRF_AES128_CBC, "PRF_AES128_CBC"},
+{MAPPING_END, NULL}
+};
+
+/*
+ * Described in header.
+ */
+prf_t *prf_create(pseudo_random_function_t pseudo_random_function)
+{
+	switch (pseudo_random_function)
+	{
+		case PRF_HMAC_SHA1:
+		{
+			return (prf_t*)hmac_prf_create(HASH_SHA1);
+		}
+		case PRF_HMAC_MD5:
+		{
+			return (prf_t*)hmac_prf_create(HASH_MD5);
+		}
+		case PRF_HMAC_TIGER:
+		case PRF_AES128_CBC:
+		default:
+			return NULL;
+	}
+}
+
+
+
+
+