Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cdsa_client / lib / macclient.h

diff --git a/Security/libsecurity_cdsa_client/lib/macclient.h b/Security/libsecurity_cdsa_client/lib/macclient.h
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+/*
+ * Copyright (c) 2000-2001,2011,2014 Apple 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.
+ */
+
+
+//
+// macclient - client interface to CSSM sign/verify mac contexts
+//
+#ifndef _H_CDSA_CLIENT_MACCLIENT
+#define _H_CDSA_CLIENT_MACCLIENT  1
+
+#include <security_cdsa_client/cspclient.h>
+#include <security_cdsa_client/keyclient.h>
+
+namespace Security
+{
+
+namespace CssmClient
+{
+
+//
+// A signing/verifying mac context
+//
+class MacContext : public Context
+{
+public:
+       MacContext(const CSP &csp, CSSM_ALGORITHMS alg)
+               : Context(csp, alg) { }
+
+       // preliminary interface
+       Key key() const { assert(mKey); return mKey; }
+       void key(const Key &k) { mKey = k; set(CSSM_ATTRIBUTE_KEY, mKey); }
+
+protected:
+       void activate();
+       Key mKey;
+};
+
+
+class GenerateMac : public MacContext
+{
+public:
+       GenerateMac(const CSP &csp, CSSM_ALGORITHMS alg) : MacContext(csp, alg) { }
+       
+       // integrated
+       void sign(const CssmData &data, CssmData &mac) { sign(&data, 1, mac); }
+       void sign(const CssmData *data, uint32 count, CssmData &mac);
+       
+       // staged
+       void init(); // Optional
+       void sign(const CssmData &data) { sign(&data, 1); }
+       void sign(const CssmData *data, uint32 count);
+       void operator () (CssmData &mac);
+       CssmData operator () () { CssmData mac; (*this)(mac); return mac; }
+};
+
+class VerifyMac : public MacContext
+{
+public:
+       VerifyMac(const CSP &csp, CSSM_ALGORITHMS alg) : MacContext(csp, alg) { }
+       
+       // integrated
+       void verify(const CssmData &data, const CssmData &mac) { verify(&data, 1, mac); }
+       void verify(const CssmData *data, uint32 count, const CssmData &mac);
+       
+       // staged
+       void init(); // Optional
+       void verify(const CssmData &data) { verify(&data, 1); }
+       void verify(const CssmData *data, uint32 count);
+       void operator () (const CssmData &mac);
+};
+
+} // end namespace CssmClient
+
+} // end namespace Security
+
+#endif // _H_CDSA_CLIENT_MACCLIENT