Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_ssl / lib / sslNullCipher.c

diff --git a/Security/libsecurity_ssl/lib/sslNullCipher.c b/Security/libsecurity_ssl/lib/sslNullCipher.c
new file mode 100644 (file)
index 0000000..7c4cc7a
--- /dev/null
+++ b/Security/libsecurity_ssl/lib/sslNullCipher.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2000-2001,2005-2008,2010-2012,2014 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/* THIS FILE CONTAINS KERNEL CODE */
+
+#include "symCipher.h"
+
+#include <string.h>
+
+const SSLSymmetricCipherParams SSLCipherNullParams = {
+    .keyAlg = SSL_CipherAlgorithmNull,
+    .ivSize = 0,
+    .blockSize = 0,
+    .keySize = 0,
+    .cipherType = streamCipherType,
+};
+
+static int NullInit(
+    const SSLSymmetricCipherParams *cipher,
+    int encrypting,
+       uint8_t *key,
+       uint8_t *iv,
+       SymCipherContext *cipherCtx)
+{
+       return 0;
+}
+
+static int NullCrypt(
+       const uint8_t *src, 
+       uint8_t *dest,
+    size_t len,
+       SymCipherContext cipherCt)
+{   
+       if (src != dest)
+        memcpy(dest, src, len);
+    return 0;
+}
+
+static int NullFinish(
+       SymCipherContext cipherCtx)
+{   
+       return 0;
+}
+
+const SSLSymmetricCipher SSLCipherNull = {
+    .params = &SSLCipherNullParams,
+    .c.cipher = {
+        .initialize = NullInit,
+        .encrypt = NullCrypt,
+        .decrypt = NullCrypt
+    },
+    .finish = NullFinish
+};