AppleCSP/RSA_DSA/RSA_DSA_signature.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /*
  20  * RSA_DSA_signature.h - openssl-based signature classes.
  21  */
  22
  23 #ifndef _RSA_DSA_SIGNATURE_H_
  24 #define _RSA_DSA_SIGNATURE_H_
  25
  26 #include <CoreServices/../Frameworks/CarbonCore.framework/Headers/MacTypes.h>
  27 #include <openssl/rsa.h>
  28 #include <openssl/dsa.h>
  29 #include <AppleCSP/RawSigner.h>
  30 #include <AppleCSP/AppleCSPSession.h>
  31
  32 #define RSA_SIG_PADDING_DEFAULT         RSA_PKCS1_PADDING
  33
  34 class RSASigner : public RawSigner {
  35 public:
  36         RSASigner(
  37                 CssmAllocator   &alloc,
  38                 AppleCSPSession &session,
  39                 CSSM_ALGORITHMS digestAlg) :
  40                         RawSigner(alloc, digestAlg),
  41                         mRsaKey(NULL),
  42                         mWeMallocdRsaKey(false),
  43                         mSession(session),
  44                         mPadding(RSA_SIG_PADDING_DEFAULT) { }
  45
  46         ~RSASigner();
  47
  48         /* reusable init */
  49         void signerInit(
  50                 const Context   &context,
  51                 bool                    isSigning);
  52
  53
  54         /* sign */
  55         void sign(
  56                 const void              *data,
  57                 size_t                  dataLen,
  58                 void                    *sig,
  59                 size_t                  *sigLen);       /* IN/OUT */
  60
  61         /* verify */
  62         void verify(
  63                 const void      *data,
  64                 size_t                  dataLen,
  65                 const void              *sig,
  66                 size_t                  sigLen);
  67
  68         /* works for both, but only used for signing */
  69         size_t maxSigSize();
  70
  71 private:
  72
  73         /*
  74          * obtain key from context, validate, convert to RSA key
  75          */
  76         void keyFromContext(
  77                 const Context   &context);
  78
  79         RSA                                     *mRsaKey;
  80         bool                            mWeMallocdRsaKey;
  81         AppleCSPSession         &mSession;
  82         int                                     mPadding;               // RSA_NO_PADDING, RSA_PKCS1_PADDING
  83 };
  84
  85 class DSASigner : public RawSigner {
  86 public:
  87         DSASigner(
  88                 CssmAllocator   &alloc,
  89                 AppleCSPSession &session,
  90                 CSSM_ALGORITHMS digestAlg) :
  91                         RawSigner(alloc, digestAlg),
  92                         mDsaKey(NULL),
  93                         mWeMallocdDsaKey(false),
  94                         mSession(session) { }
  95
  96         ~DSASigner();
  97
  98         /* reusable init */
  99         void signerInit(
 100                 const Context   &context,
 101                 bool                    isSigning);
 102
 103
 104         /* sign */
 105         void sign(
 106                 const void              *data,
 107                 size_t                  dataLen,
 108                 void                    *sig,
 109                 size_t                  *sigLen);       /* IN/OUT */
 110
 111         /* verify */
 112         void verify(
 113                 const void      *data,
 114                 size_t                  dataLen,
 115                 const void              *sig,
 116                 size_t                  sigLen);
 117
 118         /* works for both, but only used for signing */
 119         size_t maxSigSize();
 120
 121 private:
 122
 123         /*
 124          * obtain key from context, validate, convert to DSA key
 125          */
 126         void keyFromContext(
 127                 const Context   &context);
 128
 129         DSA                                     *mDsaKey;
 130         bool                            mWeMallocdDsaKey;
 131         AppleCSPSession         &mSession;
 132 };
 133
 134
 135 #endif  /* _RSA_DSA_SIGNATURE_H_ */