Security-55163.44.tar.gz

[apple/security.git] / libsecurity_apple_csp / lib / rc4Context.h

diff --git a/libsecurity_apple_csp/lib/rc4Context.h b/libsecurity_apple_csp/lib/rc4Context.h
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+/*
+ * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
+ * 
+ * The contents of this file constitute Original Code as defined in and are
+ * subject to the Apple Public Source License Version 1.2 (the 'License').
+ * You may not use this file except in compliance with the License. Please obtain
+ * a copy of the License at http://www.apple.com/publicsource and read it before
+ * using this file.
+ * 
+ * This 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.
+ */
+
+
+/*
+ * rc4Context.h - glue between BlockCrytpor and ssleay RC4 implementation
+ * Written by Doug Mitchell 4/3/2001
+ */
+#ifndef _RC4_CONTEXT_H_
+#define _RC4_CONTEXT_H_
+
+#include "AppleCSPContext.h"
+#include <CoreServices/../Frameworks/CarbonCore.framework/Headers/MacTypes.h>
+#include <CommonCrypto/CommonCryptor.h>
+#include "/usr/local/include/CommonCrypto/CommonCryptorSPI.h"
+
+class RC4Context : public AppleCSPContext {
+public:
+       RC4Context(AppleCSPSession &session) :
+               AppleCSPContext(session)        { }
+       virtual ~RC4Context();
+       
+       // called by CSPFullPluginSession
+       void init(
+               const Context   &context, 
+               bool encoding = true);
+       void update(
+               void                    *inp, 
+               size_t                  &inSize,                        // in/out
+               void                    *outp, 
+               size_t                  &outSize);                      // in/out
+       void final(
+               CssmData                &out);
+
+       size_t inputSize(
+               size_t                  outSize);                       // input for given output size
+       size_t outputSize(
+               bool                    final = false, 
+               size_t                  inSize = 0);            // output for given input size
+       void minimumProgress(
+               size_t                  &in, 
+               size_t                  &out);                          // minimum progress chunks
+       
+private:
+    CCCryptorRef    rc4Key;
+       
+};     /* RC4Context */
+
+#endif //_RC4_CONTEXT_H_