Security-55163.44.tar.gz

[apple/security.git] / libsecurity_cdsa_client / lib / macclient.cpp

diff --git a/libsecurity_cdsa_client/lib/macclient.cpp b/libsecurity_cdsa_client/lib/macclient.cpp
new file mode 100644 (file)
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+++ b/libsecurity_cdsa_client/lib/macclient.cpp
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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.
+ */
+
+
+//
+// macclient - client interface to CSSM sign/verify mac contexts
+//
+#include <security_cdsa_client/macclient.h>
+
+using namespace CssmClient;
+
+
+//
+// Common features of signing and verify mac contexts
+//
+void MacContext::activate()
+{
+       if (!mActive) 
+       {
+               check(CSSM_CSP_CreateMacContext(attachment()->handle(), mAlgorithm,
+                         mKey, &mHandle));
+               mActive = true;
+               if (cred())
+                       cred(cred());           // install explicitly
+       }
+}
+
+
+//
+// Signing
+//
+void GenerateMac::sign(const CssmData *data, uint32 count, CssmData &mac)
+{
+       unstaged();
+       check(CSSM_GenerateMac(handle(), data, count, &mac));
+}
+
+void GenerateMac::init()
+{
+       check(CSSM_GenerateMacInit(handle()));
+       mStaged = true;
+}
+
+void GenerateMac::sign(const CssmData *data, uint32 count)
+{
+       staged();
+       check(CSSM_GenerateMacUpdate(handle(), data, count));
+}
+
+void GenerateMac::operator () (CssmData &mac)
+{
+       staged();
+       check(CSSM_GenerateMacFinal(handle(), &mac));
+       mStaged = false;
+}
+
+
+//
+// Verifying
+//
+void VerifyMac::verify(const CssmData *data, uint32 count, const CssmData &mac)
+{
+       unstaged();
+       check(CSSM_VerifyMac(handle(), data, count, &mac));
+}
+
+void VerifyMac::init()
+{
+       check(CSSM_VerifyMacInit(handle()));
+       mStaged = true;
+}
+
+void VerifyMac::verify(const CssmData *data, uint32 count)
+{
+       staged();
+       check(CSSM_VerifyMacUpdate(handle(), data, count));
+}
+
+void VerifyMac::operator () (const CssmData &mac)
+{
+       staged();
+       check(CSSM_VerifyMacFinal(handle(), &mac));
+       mStaged = false;
+}