prepare_hash_sha256.h 2.6 KB

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  1. /*
  2. * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. *
  8. * * Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * * Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in
  12. * the documentation and/or other materials provided with the
  13. * distribution.
  14. * * Neither the name of Intel Corporation nor the names of its
  15. * contributors may be used to endorse or promote products derived
  16. * from this software without specific prior written permission.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. *
  30. */
  31. #ifndef _PREPARE_HASH_SHA256_H_
  32. #define _PREPARE_HASH_SHA256_H_
  33. #include "pse_pr_inc.h"
  34. #include "pse_pr_types.h"
  35. #include "ae_ipp.h"
  36. #include "sgx_tcrypto.h"
  37. class PrepareHashSHA256
  38. {
  39. public:
  40. PrepareHashSHA256();
  41. ~PrepareHashSHA256(void);
  42. // Include pData in the computed HMAC
  43. ae_error_t Update(const void* pData, size_t numBytes);
  44. // pHMAC will contain the computed HMAC if successful
  45. ae_error_t Finalize(SHA256_HASH *pHash);
  46. private:
  47. sgx_status_t m_sgx_status;
  48. sgx_sha_state_handle_t m_pShaState;
  49. // Disable class operations (default constructor, copy constructor, assignment operator, and address-of operator)
  50. //PrepareHashSHA256(); // default constructor
  51. PrepareHashSHA256(const PrepareHashSHA256& rhs); // copy constructor
  52. PrepareHashSHA256& operator=(const PrepareHashSHA256& rhs); // assignment operator
  53. PrepareHashSHA256* operator&(); // address-of operator
  54. const PrepareHashSHA256* operator&() const; // address-of operator
  55. };
  56. #endif