diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha512/HashInstanceLibSha512.c')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha512/HashInstanceLibSha512.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha512/HashInstanceLibSha512.c b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha512/HashInstanceLibSha512.c new file mode 100644 index 00000000..afd7c4bc --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/HashInstanceLibSha512/HashInstanceLibSha512.c @@ -0,0 +1,148 @@ +/** @file + This library is BaseCrypto SHA512 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 SHA512 to digest list. + + @param DigestList digest list + @param Sha512Digest SHA512 digest +**/ +VOID +Tpm2SetSha512ToDigestList ( + IN TPML_DIGEST_VALUES *DigestList, + IN UINT8 *Sha512Digest + ) +{ + DigestList->count = 1; + DigestList->digests[0].hashAlg = TPM_ALG_SHA512; + CopyMem ( + DigestList->digests[0].digest.sha512, + Sha512Digest, + SHA512_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 +Sha512HashInit ( + OUT HASH_HANDLE *HashHandle + ) +{ + VOID *Sha512Ctx; + UINTN CtxSize; + + CtxSize = Sha512GetContextSize (); + Sha512Ctx = AllocatePool (CtxSize); + ASSERT (Sha512Ctx != NULL); + + Sha512Init (Sha512Ctx); + + *HashHandle = (HASH_HANDLE)Sha512Ctx; + + 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 +Sha512HashUpdate ( + IN HASH_HANDLE HashHandle, + IN VOID *DataToHash, + IN UINTN DataToHashLen + ) +{ + VOID *Sha512Ctx; + + Sha512Ctx = (VOID *)HashHandle; + Sha512Update (Sha512Ctx, 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 +Sha512HashFinal ( + IN HASH_HANDLE HashHandle, + OUT TPML_DIGEST_VALUES *DigestList + ) +{ + UINT8 Digest[SHA512_DIGEST_SIZE]; + VOID *Sha512Ctx; + + Sha512Ctx = (VOID *)HashHandle; + Sha512Final (Sha512Ctx, Digest); + + FreePool (Sha512Ctx); + + Tpm2SetSha512ToDigestList (DigestList, Digest); + + return EFI_SUCCESS; +} + +HASH_INTERFACE mSha512InternalHashInstance = { + HASH_ALGORITHM_SHA512_GUID, + Sha512HashInit, + Sha512HashUpdate, + Sha512HashFinal, +}; + +/** + The function register SHA512 instance. + + @retval EFI_SUCCESS SHA512 instance is registered, or system does not support register SHA512 instance +**/ +EFI_STATUS +EFIAPI +HashInstanceLibSha512Constructor ( + VOID + ) +{ + EFI_STATUS Status; + + Status = RegisterHashInterfaceLib (&mSha512InternalHashInstance); + if ((Status == EFI_SUCCESS) || (Status == EFI_UNSUPPORTED)) { + // + // Unsupported means platform policy does not need this instance enabled. + // + return EFI_SUCCESS; + } + return Status; +} |