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- /** @file
- SHA-1 Digest Wrapper Implementation over OpenSSL.
- Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include "InternalCryptLib.h"
- #include <openssl/sha.h>
- /**
- Retrieves the size, in bytes, of the context buffer required for SHA-1 hash operations.
- @return The size, in bytes, of the context buffer required for SHA-1 hash operations.
- **/
- UINTN
- EFIAPI
- Sha1GetContextSize (
- VOID
- )
- {
- //
- // Retrieves OpenSSL SHA Context Size
- //
- return (UINTN) (sizeof (SHA_CTX));
- }
- /**
- Initializes user-supplied memory pointed by Sha1Context as SHA-1 hash context for
- subsequent use.
- If Sha1Context is NULL, then return FALSE.
- @param[out] Sha1Context Pointer to SHA-1 context being initialized.
- @retval TRUE SHA-1 context initialization succeeded.
- @retval FALSE SHA-1 context initialization failed.
- **/
- BOOLEAN
- EFIAPI
- Sha1Init (
- OUT VOID *Sha1Context
- )
- {
- //
- // Check input parameters.
- //
- if (Sha1Context == NULL) {
- return FALSE;
- }
- //
- // OpenSSL SHA-1 Context Initialization
- //
- return (BOOLEAN) (SHA1_Init ((SHA_CTX *) Sha1Context));
- }
- /**
- Makes a copy of an existing SHA-1 context.
- If Sha1Context is NULL, then return FALSE.
- If NewSha1Context is NULL, then return FALSE.
- @param[in] Sha1Context Pointer to SHA-1 context being copied.
- @param[out] NewSha1Context Pointer to new SHA-1 context.
- @retval TRUE SHA-1 context copy succeeded.
- @retval FALSE SHA-1 context copy failed.
- **/
- BOOLEAN
- EFIAPI
- Sha1Duplicate (
- IN CONST VOID *Sha1Context,
- OUT VOID *NewSha1Context
- )
- {
- //
- // Check input parameters.
- //
- if (Sha1Context == NULL || NewSha1Context == NULL) {
- return FALSE;
- }
- CopyMem (NewSha1Context, Sha1Context, sizeof (SHA_CTX));
- return TRUE;
- }
- /**
- Digests the input data and updates SHA-1 context.
- This function performs SHA-1 digest on a data buffer of the specified size.
- It can be called multiple times to compute the digest of long or discontinuous data streams.
- SHA-1 context should be already correctly initialized by Sha1Init(), and should not be finalized
- by Sha1Final(). Behavior with invalid context is undefined.
- If Sha1Context is NULL, then return FALSE.
- @param[in, out] Sha1Context Pointer to the SHA-1 context.
- @param[in] Data Pointer to the buffer containing the data to be hashed.
- @param[in] DataSize Size of Data buffer in bytes.
- @retval TRUE SHA-1 data digest succeeded.
- @retval FALSE SHA-1 data digest failed.
- **/
- BOOLEAN
- EFIAPI
- Sha1Update (
- IN OUT VOID *Sha1Context,
- IN CONST VOID *Data,
- IN UINTN DataSize
- )
- {
- //
- // Check input parameters.
- //
- if (Sha1Context == NULL) {
- return FALSE;
- }
- //
- // Check invalid parameters, in case that only DataLength was checked in OpenSSL
- //
- if (Data == NULL && DataSize != 0) {
- return FALSE;
- }
- //
- // OpenSSL SHA-1 Hash Update
- //
- return (BOOLEAN) (SHA1_Update ((SHA_CTX *) Sha1Context, Data, DataSize));
- }
- /**
- Completes computation of the SHA-1 digest value.
- This function completes SHA-1 hash computation and retrieves the digest value into
- the specified memory. After this function has been called, the SHA-1 context cannot
- be used again.
- SHA-1 context should be already correctly initialized by Sha1Init(), and should not be
- finalized by Sha1Final(). Behavior with invalid SHA-1 context is undefined.
- If Sha1Context is NULL, then return FALSE.
- If HashValue is NULL, then return FALSE.
- @param[in, out] Sha1Context Pointer to the SHA-1 context.
- @param[out] HashValue Pointer to a buffer that receives the SHA-1 digest
- value (20 bytes).
- @retval TRUE SHA-1 digest computation succeeded.
- @retval FALSE SHA-1 digest computation failed.
- **/
- BOOLEAN
- EFIAPI
- Sha1Final (
- IN OUT VOID *Sha1Context,
- OUT UINT8 *HashValue
- )
- {
- //
- // Check input parameters.
- //
- if (Sha1Context == NULL || HashValue == NULL) {
- return FALSE;
- }
- //
- // OpenSSL SHA-1 Hash Finalization
- //
- return (BOOLEAN) (SHA1_Final (HashValue, (SHA_CTX *) Sha1Context));
- }
- /**
- Computes the SHA-1 message digest of a input data buffer.
- This function performs the SHA-1 message digest of a given data buffer, and places
- the digest value into the specified memory.
- If this interface is not supported, then return FALSE.
- @param[in] Data Pointer to the buffer containing the data to be hashed.
- @param[in] DataSize Size of Data buffer in bytes.
- @param[out] HashValue Pointer to a buffer that receives the SHA-1 digest
- value (20 bytes).
- @retval TRUE SHA-1 digest computation succeeded.
- @retval FALSE SHA-1 digest computation failed.
- @retval FALSE This interface is not supported.
- **/
- BOOLEAN
- EFIAPI
- Sha1HashAll (
- IN CONST VOID *Data,
- IN UINTN DataSize,
- OUT UINT8 *HashValue
- )
- {
- //
- // Check input parameters.
- //
- if (HashValue == NULL) {
- return FALSE;
- }
- if (Data == NULL && DataSize != 0) {
- return FALSE;
- }
- //
- // OpenSSL SHA-1 Hash Computation.
- //
- if (SHA1 (Data, DataSize, HashValue) == NULL) {
- return FALSE;
- } else {
- return TRUE;
- }
- }
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