TPMCmd/tpm/src/command/Symmetric/EncryptDecrypt2.c

/* Microsoft Reference Implementation for TPM 2.0
 *
 *  The copyright in this software is being made available under the BSD License,
 *  included below. This software may be subject to other third party and
 *  contributor rights, including patent rights, and no such rights are granted
 *  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.
 *
 *  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
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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 */
#include "Tpm.h"
#include "EncryptDecrypt2_fp.h"
#include "EncryptDecrypt_fp.h"
#include "EncryptDecrypt_spt_fp.h"

#if CC_EncryptDecrypt2  // Conditional expansion of this file

/*(See part 3 specification)
// symmetric encryption or decryption using modified parameter list
*/
//  Return Type: TPM_RC
//      TPM_RC_KEY          is not a symmetric decryption key with both
//                          public and private portions loaded
//      TPM_RC_SIZE         'IvIn' size is incompatible with the block cipher mode;
//                          or 'inData' size is not an even multiple of the block
//                          size for CBC or ECB mode
//      TPM_RC_VALUE        'keyHandle' is restricted and the argument 'mode' does
//                          not match the key's mode
TPM_RC
TPM2_EncryptDecrypt2(
    EncryptDecrypt2_In   *in,            // IN: input parameter list
    EncryptDecrypt2_Out  *out            // OUT: output parameter list
    )
{
    TPM_RC                result;
    // EncryptDecyrptShared() performs the operations as shown in 
    // TPM2_EncrypDecrypt 
    result = EncryptDecryptShared(in->keyHandle, in->decrypt, in->mode,
                                  &in->ivIn, &in->inData,
                                  (EncryptDecrypt_Out *)out);
    // Handle response code swizzle. 
    switch(result)
    {
        case TPM_RCS_MODE + RC_EncryptDecrypt_mode:
            result = TPM_RCS_MODE + RC_EncryptDecrypt2_mode;
            break;
        case TPM_RCS_SIZE + RC_EncryptDecrypt_ivIn:
            result = TPM_RCS_SIZE + RC_EncryptDecrypt2_ivIn;
            break;
        case TPM_RCS_SIZE + RC_EncryptDecrypt_inData:
            result = TPM_RCS_SIZE + RC_EncryptDecrypt2_inData;
            break;
        default:
            break;
    }
    return result;
}

#endif // CC_EncryptDecrypt2