pse_pr_common.cpp 2.6 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. /**
  32. * File: pse_pr_common.cpp
  33. * Description: Common code needed between untrusted and enclave
  34. */
  35. #include "pse_pr_common.h"
  36. #include "pse_pr_sigma_1_1_defs.h"
  37. #include "pse_pr_sigma_common_defs.h"
  38. #include "sgx_tseal.h"
  39. #include "sgx_report.h"
  40. #include "pairing_blob.h"
  41. #include "Epid11_rl.h"
  42. #define MAX_CSR_BYTES 1024
  43. uint32_t NeededBytesForPairingBlob()
  44. {
  45. return sgx_calc_sealed_data_size(sizeof(se_plaintext_pairing_data_t), sizeof(se_secret_pairing_data_t));
  46. }
  47. uint32_t NeededBytesForREPORT()
  48. {
  49. return sizeof(sgx_report_t);
  50. }
  51. uint32_t NeededBytesForS2(uint32_t nCertChain, uint32_t nRL, uint32_t nOcspResp)
  52. {
  53. uint32_t nRL_VLR = 0;
  54. if (nRL > 0)
  55. {
  56. uint32_t nPaddedBytes = REQUIRED_PADDING_DWORD_ALIGNMENT(nRL);
  57. nRL_VLR = static_cast<uint32_t>(sizeof(SIGMA_VLR_HEADER)) + nPaddedBytes + nRL;
  58. }
  59. uint32_t nFixed = sizeof(SIGMA_S2_MESSAGE); // Fixed portion of S2
  60. uint32_t nNeededPr = sizeof(PR_PSE_T);
  61. return nFixed + nCertChain + nRL_VLR + nOcspResp + nNeededPr;
  62. }
  63. uint32_t MaxBytesForCSR()
  64. {
  65. return 1024;
  66. }