+++ /dev/null
-/*
- * Copyright (c) 2004 Apple Computer, Inc. All Rights Reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The 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.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-
-//
-// SDContext.h - Security Server contexts
-//
-#ifndef _H_SD_CONTEXT
-#define _H_SD_CONTEXT
-
-#include <security_cdsa_plugin/CSPsession.h>
-#include <securityd_client/ssclient.h>
-#include <security_cdsa_utilities/digestobject.h>
-#include <security_cdsa_client/cspclient.h>
-
-//
-// Parent class for all CSPContexts implemented in this CSP. Currently the
-// only thing we add is a reference to our creator's session.
-//
-class SDCSPSession;
-class SDKey;
-
-class SDContext : public CSPFullPluginSession::CSPContext
-{
-public:
- SDContext(SDCSPSession &session);
- ~SDContext() { clearOutBuf(); }
- virtual void init(const Context &context, bool encoding);
-
-protected:
- SecurityServer::ClientSession &clientSession();
- SDCSPSession &mSession;
-
- // mOutBuf provides a holding tank for implied final() operations
- // resulting from an outputSize(true, 0). This form of outputSize()
- // is understood to only occur just prior to the final() call. To avoid
- // an extra RPC (just to perform the outputSize(), most subclasses of
- // SDContext actually perform the final() operation at this time,
- // storing the result in mOutBuf. At final(), mOutBuf() is just copied
- // to the caller's supplied output buffer.
- CssmData mOutBuf;
-
- // We remember a pointer to the passed in context and assume it will
- // remain a valid from init(), update() all the way though the call to
- // final().
- const Context *mContext;
-
- void clearOutBuf();
- void copyOutBuf(CssmData &out);
-};
-
-// context for signature (sign and verify)
-class SDSignatureContext : public SDContext
-{
-public:
- SDSignatureContext(SDCSPSession &session);
- ~SDSignatureContext();
- virtual void init(const Context &context, bool signing);
- virtual void update(const CssmData &data);
- virtual size_t outputSize(bool final, size_t inSize);
-
- /* sign */
- void sign(CssmData &sig);
- virtual void final(CssmData &out);
-
- /* verify */
- virtual void final(const CssmData &in);
-
- /* for raw sign/verify - optionally called after init */
- virtual void setDigestAlgorithm(CSSM_ALGORITHMS digestAlg);
-
-private:
- /* stash the context's key for final sign/verify */
- SecurityServer::KeyHandle mKeyHandle;
-
- /* alg-dependent, calculated at init time */
- CSSM_ALGORITHMS mSigAlg; // raw signature alg
- CSSM_ALGORITHMS mDigestAlg; // digest
-
- /* exactly one of these is used to collect updates */
- NullDigest *mNullDigest;
- CssmClient::Digest *mDigest;
-};
-
-// Context for GenerateRandom operations
-class SDRandomContext : public SDContext
-{
-public:
- SDRandomContext(SDCSPSession &session);
- virtual void init(const Context &context, bool);
- virtual size_t outputSize(bool final, size_t inSize);
- virtual void final(CssmData &out);
-
-private:
- uint32 mOutSize; // spec'd in context at init() time
-};
-
-// Context for Encrypt and Decrypt operations
-class SDCryptContext : public SDContext
-{
-public:
- SDCryptContext(SDCSPSession &session);
- ~SDCryptContext();
- virtual void init(const Context &context, bool encoding);
- virtual size_t inputSize(size_t outSize);
- virtual size_t outputSize(bool final, size_t inSize);
- virtual void minimumProgress(size_t &in, size_t &out);
- virtual void update(void *inp, size_t &inSize, void *outp,
- size_t &outSize);
- virtual void final(CssmData &out);
-
-private:
- SecurityServer::KeyHandle mKeyHandle;
- NullDigest mNullDigest; // accumulator
-};
-
-// Digest, using raw CSP
-class SDDigestContext : public SDContext
-{
-public:
- SDDigestContext(SDCSPSession &session);
- ~SDDigestContext();
- virtual void init(const Context &context, bool);
- virtual void update(const CssmData &data);
- virtual void final(CssmData &out);
- virtual size_t outputSize(bool final, size_t inSize);
-
-private:
- CssmClient::Digest *mDigest;
-};
-
-// common class for MAC generate, verify
-class SDMACContext : public SDContext
-{
-public:
- SDMACContext(SDCSPSession &session);
- virtual void init(const Context &context, bool);
- virtual void update(const CssmData &data);
- virtual size_t outputSize(bool final, size_t inSize);
-
- /* sign */
- void genMac(CssmData &mac);
- virtual void final(CssmData &out);
- /* verify */
- virtual void final(const CssmData &in);
-
-private:
- SecurityServer::KeyHandle mKeyHandle;
- NullDigest mNullDigest; // accumulator
-};
-
-
-#endif // _H_SD_CONTEXT
projects / apple / security.git / blobdiff