pve_pub_key.cpp 2.7 KB

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  1. /*
  2. * Copyright (C) 2011-2017 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. #include "byte_order.h"
  32. #include "epid_pve_type.h"
  33. #include "sgx_tcrypto.h"
  34. #include "ipp_wrapper.h"
  35. static void get_provision_server_rsa_key_little_endian_order(const signed_pek_t& pek, signed_pek_t& little_endian_key)
  36. {
  37. uint32_t i;
  38. for(i=0;i<sizeof(pek.n);i++){
  39. little_endian_key.n[i] = pek.n[sizeof(pek.n)-1-i];
  40. }
  41. for(i=0;i<sizeof(pek.e);i++){
  42. little_endian_key.e[i] = pek.e[sizeof(pek.e)-1-i];
  43. }
  44. }
  45. //Function to get the rsa public key of backend server for IPP functions
  46. //The output rsa_pub_key should be released by function free_rsa_key
  47. IppStatus get_provision_server_rsa_pub_key_in_ipp_format(const signed_pek_t& pek, IppsRSAPublicKeyState **rsa_pub_key)
  48. {
  49. signed_pek_t little_endian_key;
  50. get_provision_server_rsa_key_little_endian_order(pek, little_endian_key);
  51. return create_rsa_pub_key(PVE_RSA_KEY_BYTES,
  52. sizeof(little_endian_key.e),
  53. reinterpret_cast<const Ipp32u*>(little_endian_key.n),
  54. reinterpret_cast<const Ipp32u *>(&little_endian_key.e),
  55. rsa_pub_key);
  56. }