sgx_ecc256_internal.h 2.8 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 _SGX_ECC256_INTERNAL_H
  32. #define _SGX_ECC256_INTERNAL_H
  33. #include "sgx_tcrypto.h"
  34. typedef struct _sgx_ec256_shared_point_t
  35. {
  36. uint8_t x[SGX_ECP256_KEY_SIZE];
  37. uint8_t y[SGX_ECP256_KEY_SIZE];
  38. } sgx_ec256_shared_point_t;
  39. #ifdef __cplusplus
  40. extern "C"
  41. #endif
  42. /* NOTE: The function is for internal use ONLY
  43. *
  44. * Computes a point with scalar multiplication based on private B key (local) and remote public Ga Key
  45. * Parameters:
  46. * Return: sgx_status_t - SGX_SUCCESS or failure as defined in sgx_error.h
  47. * Inputs: sgx_ecc_state_handle_t ecc_handle - Handle to the ECC crypto system
  48. * sgx_ec256_private_t *p_private_b - Pointer to the local private key
  49. * sgx_ec256_public_t *p_public_ga - Pointer to the remote public key
  50. * Output: sgx_ec256_shared_point_t *p_shared_key - Pointer to the target shared point
  51. */
  52. sgx_status_t SGXAPI sgx_ecc256_compute_shared_point(sgx_ec256_private_t *p_private_b,
  53. sgx_ec256_public_t *p_public_ga,
  54. sgx_ec256_shared_point_t *p_shared_key,
  55. sgx_ecc_state_handle_t ecc_handle);
  56. #endif