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

diff --git a/Security/libsecurity_apple_csp/lib/RSA_asymmetric.h b/Security/libsecurity_apple_csp/lib/RSA_asymmetric.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.
+ */
+
+
+/*
+ * RSA_asymmetric.h - CSPContext for RSA asymmetric encryption
+ */
+
+#ifndef _RSA_ASYMMETRIC_H_
+#define _RSA_ASYMMETRIC_H_
+
+#include <security_cdsa_plugin/CSPsession.h>
+#include <AppleCSP.h>
+#include <AppleCSPContext.h>
+#include <AppleCSPSession.h>
+#include <BlockCryptor.h>
+#include <openssl/rsa.h>
+
+#define RSA_ASYM_PADDING_DEFAULT		RSA_PKCS1_PADDING
+
+class RSA_CryptContext : public BlockCryptor {
+public:
+	RSA_CryptContext(AppleCSPSession &session) :
+		BlockCryptor(session),
+		mRsaKey(NULL),
+		mAllocdRsaKey(false),
+		mInitFlag(false),
+		mPadding(RSA_ASYM_PADDING_DEFAULT),
+		mOaep(false),
+		mLabel(Allocator::standard()) 	{ }
+		
+	~RSA_CryptContext();
+	
+	/* called by CSPFullPluginSession */
+	void init(const Context &context, bool encoding = true);
+
+	/* called by BlockCryptor */
+	void encryptBlock(
+		const void		*plainText,			// length implied (one block)
+		size_t			plainTextLen,
+		void			*cipherText,	
+		size_t			&cipherTextLen,		// in/out, throws on overflow
+		bool			final);
+	void decryptBlock(
+		const void		*cipherText,		// length implied (one cipher block)
+		size_t			cipherTextLen,
+		void			*plainText,	
+		size_t			&plainTextLen,		// in/out, throws on overflow
+		bool			final);
+
+	size_t outputSize(
+		bool 			final,				// ignored
+		size_t 			inSize = 0); 		// output for given input size
+
+private:
+		RSA				*mRsaKey;
+		bool			mAllocdRsaKey;
+		bool			mInitFlag;			// allows easy reuse
+		int				mPadding;			// RSA_NO_PADDING, RSA_PKCS1_PADDING,
+											//    RSA_SSLV23_PADDING
+
+		/* 
+		 * optional fields for OEAP keys 
+		 * (mKeyHeader.AlgorithmId == CSSM_ALGMODE_PKCS1_EME_OAEP) 
+		 */
+		bool					mOaep;
+		CssmAutoData			mLabel;
+		
+};	/* RSA_CryptContext */
+
+
+#endif // _RSA_ASYMMETRIC_H_