X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/libsecurity_apple_csp/lib/SignatureContext.h

diff --git a/libsecurity_apple_csp/lib/SignatureContext.h b/libsecurity_apple_csp/lib/SignatureContext.h
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--- a/libsecurity_apple_csp/lib/SignatureContext.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.
- */
-
-
-/*
- * SignatureContext.h - AppleCSPContext subclass for generic sign/verify
- *
- * This class performs all of the sign/verify operations in the CSP. The general
- * scheme is that an instance of this class has references to one DigestObject
- * and one RawSigner. Sign and Verify "updates" go to the DigestObject. The "final"
- * operation consists of obtaining the final digest from the DigestObject and 
- * performing a sign or verify on that data via the RawSigner. 
- *
- * This class knows nothing about any of the algorithms involved; all sign and 
- * verify operations follow this same scheme. Various modules' AlgorithmFactories
- * construct one of these objects by providing the appropriate DigestObject and
- * RawSigner. 
- *
- * The seemingly special case of "raw RSA sign", in which the app calculates the 
- * digest separately from the sign operation, is handled via the NullDigest object.
- */
- 
-#ifndef	_SIGNATURE_CONTEXT_H_
-#define _SIGNATURE_CONTEXT_H_
-
-#include <RawSigner.h>
-#include <security_cdsa_utilities/digestobject.h>
-#include <AppleCSPContext.h>
-
-class SignatureContext : public AppleCSPContext  {
-public:
-	SignatureContext(
-		AppleCSPSession &session,
-		DigestObject	&digest,
-		RawSigner		&signer) : 
-			AppleCSPContext(session), 
-			mDigest(digest), 
-			mSigner(signer),
-			mInitFlag(false) { }
-			
-	~SignatureContext();
-	
-	/* called out from CSPFullPluginSession....
-	 * both sign & verify: */
-	void init(const Context &context, bool isSigning);
-	void update(const CssmData &data);
-	
-	/* sign only */
-	void final(CssmData &out);	
-	
-	/* verify only */
-	void final(const CssmData &in);	
-
-	size_t outputSize(bool final, size_t inSize);
-
-	/* for raw sign/verify - optionally called after init */ 
-	virtual void setDigestAlgorithm(CSSM_ALGORITHMS digestAlg);
-
-
-private:
-	DigestObject	&mDigest;
-	RawSigner		&mSigner;
-	bool			mInitFlag;			// true after init
-};
-
-
-#endif	/* _SIGNATURE_CONTEXT_H_ */