1 /* Microsoft Reference Implementation for TPM 2.0
2  *
3  *  The copyright in this software is being made available under the BSD License,
4  *  included below. This software may be subject to other third party and
5  *  contributor rights, including patent rights, and no such rights are granted
6  *  under this license.
7  *
8  *  Copyright (c) Microsoft Corporation
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10  *  All rights reserved.
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14  *  Redistribution and use in source and binary forms, with or without modification,
15  *  are permitted provided that the following conditions are met:
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17  *  Redistributions of source code must retain the above copyright notice, this list
18  *  of conditions and the following disclaimer.
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20  *  Redistributions in binary form must reproduce the above copyright notice, this
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24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
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34  */
35 // This file contains the RSA-related structures and defines.
36 
37 #ifndef _CRYPT_RSA_H
38 #define _CRYPT_RSA_H
39 
40 // These values are used in the bigNum representation of various RSA values.
41 BN_TYPE(rsa, MAX_RSA_KEY_BITS);
42 #define BN_RSA(name)       BN_VAR(name, MAX_RSA_KEY_BITS)
43 #define BN_RSA_INITIALIZED(name, initializer)                      \
44     BN_INITIALIZED(name, MAX_RSA_KEY_BITS, initializer)
45 
46 #define BN_PRIME(name)     BN_VAR(name, (MAX_RSA_KEY_BITS / 2))
47 BN_TYPE(prime, (MAX_RSA_KEY_BITS / 2));
48 #define BN_PRIME_INITIALIZED(name, initializer)                    \
49     BN_INITIALIZED(name, MAX_RSA_KEY_BITS / 2, initializer)
50 
51 #if !CRT_FORMAT_RSA
52 #   error   This verson only works with CRT formatted data
53 #endif // !CRT_FORMAT_RSA
54 
55 typedef struct privateExponent
56 {
57     bigNum              P;
58     bigNum              Q;
59     bigNum              dP;
60     bigNum              dQ;
61     bigNum              qInv;
62     bn_prime_t          entries[5];
63 } privateExponent;
64 
65 #define     NEW_PRIVATE_EXPONENT(X)                                                 \
66     privateExponent         _##X;                                                   \
67     privateExponent         *X = RsaInitializeExponent(&(_##X))
68 
69 #endif      // _CRYPT_RSA_H
70