xref: /aosp_15_r20/external/ms-tpm-20-ref/TPMCmd/tpm/include/CryptRsa.h (revision 5c591343844d1f9da7da26467c4bf7efc8a7a413)

/* Microsoft Reference Implementation for TPM 2.0
 *
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 *  included below. This software may be subject to other third party and
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 *  under this license.
 *
 *  Copyright (c) Microsoft Corporation
 *
 *  All rights reserved.
 *
 *  BSD License
 *
 *  Redistribution and use in source and binary forms, with or without modification,
 *  are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice, this list
 *  of conditions and the following disclaimer.
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 *  Redistributions in binary form must reproduce the above copyright notice, this
 *  list of conditions and the following disclaimer in the documentation and/or
 *  other materials provided with the distribution.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// This file contains the RSA-related structures and defines.

#ifndef _CRYPT_RSA_H
#define _CRYPT_RSA_H

// These values are used in the bigNum representation of various RSA values.
BN_TYPE(rsa, MAX_RSA_KEY_BITS);
#define BN_RSA(name)       BN_VAR(name, MAX_RSA_KEY_BITS)
#define BN_RSA_INITIALIZED(name, initializer)                      \
    BN_INITIALIZED(name, MAX_RSA_KEY_BITS, initializer)

#define BN_PRIME(name)     BN_VAR(name, (MAX_RSA_KEY_BITS / 2))
BN_TYPE(prime, (MAX_RSA_KEY_BITS / 2));
#define BN_PRIME_INITIALIZED(name, initializer)                    \
    BN_INITIALIZED(name, MAX_RSA_KEY_BITS / 2, initializer)

#if !CRT_FORMAT_RSA
#   error   This verson only works with CRT formatted data
#endif // !CRT_FORMAT_RSA

typedef struct privateExponent
{
    bigNum              P;
    bigNum              Q;
    bigNum              dP;
    bigNum              dQ;
    bigNum              qInv;
    bn_prime_t          entries[5];
} privateExponent;

#define     NEW_PRIVATE_EXPONENT(X)                                                 \
    privateExponent         _##X;                                                   \
    privateExponent         *X = RsaInitializeExponent(&(_##X))

#endif      // _CRYPT_RSA_H