mirror of https://github.com/acidanthera/audk.git
151 lines
3.1 KiB
C
151 lines
3.1 KiB
C
/** @file
|
|
This library is BaseCrypto SHA1 hash instance.
|
|
It can be registered to BaseCrypto router, to serve as hash engine.
|
|
|
|
Copyright (c) 2013 - 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/Tpm2CommandLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/BaseCryptLib.h>
|
|
#include <Library/MemoryAllocationLib.h>
|
|
#include <Library/HashLib.h>
|
|
|
|
/**
|
|
The function set SHA1 to digest list.
|
|
|
|
@param DigestList digest list
|
|
@param Sha1Digest SHA1 digest
|
|
**/
|
|
VOID
|
|
Tpm2SetSha1ToDigestList (
|
|
IN TPML_DIGEST_VALUES *DigestList,
|
|
IN UINT8 *Sha1Digest
|
|
)
|
|
{
|
|
DigestList->count = 1;
|
|
DigestList->digests[0].hashAlg = TPM_ALG_SHA1;
|
|
CopyMem (
|
|
DigestList->digests[0].digest.sha1,
|
|
Sha1Digest,
|
|
SHA1_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
|
|
Sha1HashInit (
|
|
OUT HASH_HANDLE *HashHandle
|
|
)
|
|
{
|
|
VOID *Sha1Ctx;
|
|
UINTN CtxSize;
|
|
|
|
CtxSize = Sha1GetContextSize ();
|
|
Sha1Ctx = AllocatePool (CtxSize);
|
|
ASSERT (Sha1Ctx != NULL);
|
|
|
|
Sha1Init (Sha1Ctx);
|
|
|
|
*HashHandle = (HASH_HANDLE)Sha1Ctx;
|
|
|
|
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
|
|
Sha1HashUpdate (
|
|
IN HASH_HANDLE HashHandle,
|
|
IN VOID *DataToHash,
|
|
IN UINTN DataToHashLen
|
|
)
|
|
{
|
|
VOID *Sha1Ctx;
|
|
|
|
Sha1Ctx = (VOID *)HashHandle;
|
|
Sha1Update (Sha1Ctx, 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
|
|
Sha1HashFinal (
|
|
IN HASH_HANDLE HashHandle,
|
|
OUT TPML_DIGEST_VALUES *DigestList
|
|
)
|
|
{
|
|
UINT8 Digest[SHA1_DIGEST_SIZE];
|
|
VOID *Sha1Ctx;
|
|
|
|
Sha1Ctx = (VOID *)HashHandle;
|
|
Sha1Final (Sha1Ctx, Digest);
|
|
|
|
FreePool (Sha1Ctx);
|
|
|
|
Tpm2SetSha1ToDigestList (DigestList, Digest);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
HASH_INTERFACE mSha1InternalHashInstance = {
|
|
HASH_ALGORITHM_SHA1_GUID,
|
|
Sha1HashInit,
|
|
Sha1HashUpdate,
|
|
Sha1HashFinal,
|
|
};
|
|
|
|
/**
|
|
The function register SHA1 instance.
|
|
|
|
@retval EFI_SUCCESS SHA1 instance is registered, or system does not support register SHA1 instance
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
HashInstanceLibSha1Constructor (
|
|
VOID
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
Status = RegisterHashInterfaceLib (&mSha1InternalHashInstance);
|
|
if ((Status == EFI_SUCCESS) || (Status == EFI_UNSUPPORTED)) {
|
|
//
|
|
// Unsupported means platform policy does not need this instance enabled.
|
|
//
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
return Status;
|
|
}
|