Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_apple_csp / lib / RSA_DSA_signature.h

diff --git a/Security/libsecurity_apple_csp/lib/RSA_DSA_signature.h b/Security/libsecurity_apple_csp/lib/RSA_DSA_signature.h
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+++ b/Security/libsecurity_apple_csp/lib/RSA_DSA_signature.h
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+/*
+ * Copyright (c) 2000-2001,2011,2013-2014 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_DSA_signature.h - openssl-based signature classes.  
+ */
+
+#ifndef        _RSA_DSA_SIGNATURE_H_
+#define _RSA_DSA_SIGNATURE_H_
+
+#include <openssl/rsa.h>
+#include <openssl/dsa.h>
+#include <RawSigner.h>
+#include <AppleCSPSession.h>
+
+#define RSA_SIG_PADDING_DEFAULT                RSA_PKCS1_PADDING
+
+class RSASigner : public RawSigner {
+public:
+       RSASigner(
+               Allocator       &alloc,
+               AppleCSPSession &session,
+               CSSM_ALGORITHMS digestAlg) : 
+                       RawSigner(alloc, digestAlg),
+                       mRsaKey(NULL),
+                       mWeMallocdRsaKey(false),
+                       mSession(session),
+                       mPadding(RSA_SIG_PADDING_DEFAULT) { }
+                       
+       ~RSASigner();
+       
+       /* reusable init */
+       void signerInit(
+               const Context   &context,
+               bool                    isSigning);
+       
+
+       /* sign */
+       void sign(
+               const void              *data, 
+               size_t                  dataLen,
+               void                    *sig,   
+               size_t                  *sigLen);       /* IN/OUT */
+               
+       /* verify */
+       void verify(
+               const void      *data, 
+               size_t                  dataLen,
+               const void              *sig,                   
+               size_t                  sigLen);        
+               
+       /* works for both, but only used for signing */
+       size_t maxSigSize();
+
+private:
+
+       /* 
+        * obtain key from context, validate, convert to RSA key
+        */
+       void keyFromContext(
+               const Context   &context);
+
+       RSA                                     *mRsaKey;
+       bool                            mWeMallocdRsaKey;
+       AppleCSPSession         &mSession;
+       int                                     mPadding;               // RSA_NO_PADDING, RSA_PKCS1_PADDING
+};
+
+class DSASigner : public RawSigner {
+public:
+       DSASigner(
+               Allocator       &alloc,
+               AppleCSPSession &session,
+               CSSM_ALGORITHMS digestAlg) : 
+                       RawSigner(alloc, digestAlg),
+                       mDsaKey(NULL),
+                       mWeMallocdDsaKey(false),
+                       mSession(session) { }
+                       
+       ~DSASigner();
+       
+       /* reusable init */
+       void signerInit(
+               const Context   &context,
+               bool                    isSigning);
+       
+
+       /* sign */
+       void sign(
+               const void              *data, 
+               size_t                  dataLen,
+               void                    *sig,   
+               size_t                  *sigLen);       /* IN/OUT */
+               
+       /* verify */
+       void verify(
+               const void      *data, 
+               size_t                  dataLen,
+               const void              *sig,                   
+               size_t                  sigLen);        
+               
+       /* works for both, but only used for signing */
+       size_t maxSigSize();
+
+private:
+
+       /* 
+        * obtain key from context, validate, convert to DSA key
+        */
+       void keyFromContext(
+               const Context   &context);
+
+       DSA                                     *mDsaKey;
+       bool                            mWeMallocdDsaKey;
+       AppleCSPSession         &mSession;
+};
+
+
+#endif /* _RSA_DSA_SIGNATURE_H_ */