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[apple/security.git] / libsecurity_apple_csp / lib / ascContext.h
diff --git a/libsecurity_apple_csp/lib/ascContext.h b/libsecurity_apple_csp/lib/ascContext.h
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-/*
- * ascContext.h - glue between BlockCrytpor and ComCryption (a.k.a. Apple
- *                               Secure Compression). 
- * Written by Doug Mitchell 4/4/2001
- */
-
-#ifdef ASC_CSP_ENABLE
-
-#ifndef _ASC_CONTEXT_H_
-#define _ASC_CONTEXT_H_
-
-#include "AppleCSPContext.h"
-#include <security_comcryption/comcryption.h>
-
-/* symmetric encrypt/decrypt context */
-class ASCContext : public AppleCSPContext {
-public:
-       ASCContext(AppleCSPSession &session) :
-               AppleCSPContext(session),
-               mCcObj(NULL)    { }
-       ~ASCContext();
-       
-       // 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:
-       comcryptObj                     mCcObj;
-       
-       /*
-        * For first implementation, we have to cope with the fact that the final
-        * decrypt call down to the comcryption engine requires *some* ciphertext.
-        * On decrypt, we'll just save one byte on each update in preparation for
-        * the final call. Hopefull we'll have time to fix deComcryptData() so this
-        * is unneccesary.
-        */
-       unsigned char           mDecryptBuf;
-       bool                            mDecryptBufValid;
-       
-};     /* RC4Context */
-
-#endif         /*_ASC_CONTEXT_H_ */
-#endif /* ASC_CSP_ENABLE */