diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha384/HashInstanceLibSha384.c')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha384/HashInstanceLibSha384.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha384/HashInstanceLibSha384.c b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha384/HashInstanceLibSha384.c new file mode 100644 index 00000000..502a8e20 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha384/HashInstanceLibSha384.c @@ -0,0 +1,149 @@ +/** @file + This library is BaseCrypto SHA384 hash instance. + It can be registered to BaseCrypto router, to serve as hash engine. + +Copyright (c) 2018, Intel Corporation. All rights reserved. <BR> +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include <PiPei.h> + +#include <Library/BaseLib.h> +#include <Library/BaseMemoryLib.h> +#include <Library/DebugLib.h> +#include <Library/BaseCryptLib.h> +#include <Library/MemoryAllocationLib.h> +#include <Library/HashLib.h> + +/** + The function set SHA384 to digest list. + + @param DigestList digest list + @param Sha384Digest SHA384 digest +**/ +VOID +Tpm2SetSha384ToDigestList ( + IN TPML_DIGEST_VALUES *DigestList, + IN UINT8 *Sha384Digest + ) +{ + DigestList->count = 1; + DigestList->digests[0].hashAlg = TPM_ALG_SHA384; + CopyMem ( + DigestList->digests[0].digest.sha384, + Sha384Digest, + SHA384_DIGEST_SIZE + ); +} + +/** + Start hash sequence. + + @param HashHandle Hash handle. + + @retval EFI_SUCCESS Hash sequence start and HandleHandle returned. + @retval EFI_OUT_OF_RESOURCES No enough resource to start hash. +**/ +EFI_STATUS +EFIAPI +Sha384HashInit ( + OUT HASH_HANDLE *HashHandle + ) +{ + VOID *Sha384Ctx; + UINTN CtxSize; + + CtxSize = Sha384GetContextSize (); + Sha384Ctx = AllocatePool (CtxSize); + ASSERT (Sha384Ctx != NULL); + + Sha384Init (Sha384Ctx); + + *HashHandle = (HASH_HANDLE)Sha384Ctx; + + return EFI_SUCCESS; +} + +/** + Update hash sequence data. + + @param HashHandle Hash handle. + @param DataToHash Data to be hashed. + @param DataToHashLen Data size. + + @retval EFI_SUCCESS Hash sequence updated. +**/ +EFI_STATUS +EFIAPI +Sha384HashUpdate ( + IN HASH_HANDLE HashHandle, + IN VOID *DataToHash, + IN UINTN DataToHashLen + ) +{ + VOID *Sha384Ctx; + + Sha384Ctx = (VOID *)HashHandle; + Sha384Update (Sha384Ctx, DataToHash, DataToHashLen); + + return EFI_SUCCESS; +} + +/** + Complete hash sequence complete. + + @param HashHandle Hash handle. + @param DigestList Digest list. + + @retval EFI_SUCCESS Hash sequence complete and DigestList is returned. +**/ +EFI_STATUS +EFIAPI +Sha384HashFinal ( + IN HASH_HANDLE HashHandle, + OUT TPML_DIGEST_VALUES *DigestList + ) +{ + UINT8 Digest[SHA384_DIGEST_SIZE]; + VOID *Sha384Ctx; + + Sha384Ctx = (VOID *)HashHandle; + Sha384Final (Sha384Ctx, Digest); + + FreePool (Sha384Ctx); + + Tpm2SetSha384ToDigestList (DigestList, Digest); + + return EFI_SUCCESS; +} + +HASH_INTERFACE mSha384InternalHashInstance = { + HASH_ALGORITHM_SHA384_GUID, + Sha384HashInit, + Sha384HashUpdate, + Sha384HashFinal, +}; + +/** + The function register SHA384 instance. + + @retval EFI_SUCCESS SHA384 instance is registered, or system does not support register SHA384 instance +**/ +EFI_STATUS +EFIAPI +HashInstanceLibSha384Constructor ( + VOID + ) +{ + EFI_STATUS Status; + + Status = RegisterHashInterfaceLib (&mSha384InternalHashInstance); + if ((Status == EFI_SUCCESS) || (Status == EFI_UNSUPPORTED)) { + // + // Unsupported means platform policy does not need this instance enabled. + // + return EFI_SUCCESS; + } + return Status; +} |