1 files changed, 67 insertions, 0 deletions
diff --git a/trunk/include/asterisk/aes.h b/trunk/include/asterisk/aes.h
new file mode 100644
index 000000000..25e76153f
--- /dev/null
+++ b/trunk/include/asterisk/aes.h
@@ -0,0 +1,67 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 20075, Digium, Inc.
+ *
+ * Kevin P. Fleming <kpfleming@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ * Wrappers for AES encryption/decryption
+ *
+ * \author Kevin P. Fleming <kpfleming@digium.com>
+ *
+ * These wrappers provided a generic interface to either the
+ * AES methods provided by OpenSSL's crypto library, or the
+ * AES implementation included with Asterisk.
+ */
+
+#ifndef _ASTERISK_AES_H
+#define _ASTERISK_AES_H
+
+#ifdef HAVE_CRYPTO
+
+/* Use the OpenSSL crypto library */
+#include "openssl/aes.h"
+
+typedef AES_KEY ast_aes_encrypt_key;
+typedef AES_KEY ast_aes_decrypt_key;
+
+#define ast_aes_encrypt_key(key, context) AES_set_encrypt_key(key, 1024, context)
+
+#define ast_aes_decrypt_key(key, context) AES_set_decrypt_key(key, 1024, context)
+
+#define ast_aes_encrypt(in, out, context) AES_encrypt(in, out, context)
+
+#define ast_aes_decrypt(in, out, context) AES_decrypt(in, out, context)
+
+#else /* !HAVE_CRYPTO */
+
+/* Use the included AES implementation */
+
+#include "aes_internal.h"
+
+typedef aes_encrypt_ctx ast_aes_encrypt_key;
+typedef aes_decrypt_ctx ast_aes_decrypt_key;
+
+#define ast_aes_encrypt_key(key, context) aes_encrypt_key128(key, context)
+
+#define ast_aes_decrypt_key(key, context) aes_decrypt_key128(key, context)
+
+#define ast_aes_encrypt(in, out, context) aes_encrypt(in, out, context)
+
+#define ast_aes_decrypt(in, out, context) aes_decrypt(in, out, context)
+
+#endif /* !HAVE_CRYPTO */
+
+#endif /* _ASTERISK_AES_H */