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| /** @file | ||
| SM3 Digest Wrapper Implementation over OpenSSL. | ||
| Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR> | ||
| This program and the accompanying materials | ||
| are licensed and made available under the terms and conditions of the BSD License | ||
| which accompanies this distribution. The full text of the license may be found at | ||
| http://opensource.org/licenses/bsd-license.php | ||
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | ||
| **/ | ||
|
|
||
| #include "InternalCryptLib.h" | ||
| #include <openssl/sm3.h> | ||
|
|
||
| /** | ||
| Retrieves the size, in bytes, of the context buffer required for SM3 hash operations. | ||
| @return The size, in bytes, of the context buffer required for SM3 hash operations. | ||
| **/ | ||
| UINTN | ||
| EFIAPI | ||
| Sm3GetContextSize ( | ||
| VOID | ||
| ) | ||
| { | ||
| // | ||
| // Retrieves OpenSSL SM3 Context Size | ||
| // | ||
| return (UINTN) (sizeof (SM3_CTX)); | ||
| } | ||
|
|
||
| /** | ||
| Initializes user-supplied memory pointed by Sm3Context as SM3 hash context for | ||
| subsequent use. | ||
| If Sm3Context is NULL, then return FALSE. | ||
| @param[out] Sm3Context Pointer to SM3 context being initialized. | ||
| @retval TRUE SM3 context initialization succeeded. | ||
| @retval FALSE SM3 context initialization failed. | ||
| **/ | ||
| BOOLEAN | ||
| EFIAPI | ||
| Sm3Init ( | ||
| OUT VOID *Sm3Context | ||
| ) | ||
| { | ||
| // | ||
| // Check input parameters. | ||
| // | ||
| if (Sm3Context == NULL) { | ||
| return FALSE; | ||
| } | ||
|
|
||
| // | ||
| // OpenSSL SM3 Context Initialization | ||
| // | ||
| return (BOOLEAN) (sm3_init ((SM3_CTX *) Sm3Context)); | ||
| } | ||
|
|
||
| /** | ||
| Makes a copy of an existing SM3 context. | ||
| If Sm3Context is NULL, then return FALSE. | ||
| If NewSm3Context is NULL, then return FALSE. | ||
| @param[in] Sm3Context Pointer to SM3 context being copied. | ||
| @param[out] NewSm3Context Pointer to new SM3 context. | ||
| @retval TRUE SM3 context copy succeeded. | ||
| @retval FALSE SM3 context copy failed. | ||
| **/ | ||
| BOOLEAN | ||
| EFIAPI | ||
| Sm3Duplicate ( | ||
| IN CONST VOID *Sm3Context, | ||
| OUT VOID *NewSm3Context | ||
| ) | ||
| { | ||
| // | ||
| // Check input parameters. | ||
| // | ||
| if (Sm3Context == NULL || NewSm3Context == NULL) { | ||
| return FALSE; | ||
| } | ||
|
|
||
| CopyMem (NewSm3Context, (void *)Sm3Context, sizeof (SM3_CTX)); | ||
|
|
||
| return TRUE; | ||
| } | ||
|
|
||
| /** | ||
| Digests the input data and updates SM3 context. | ||
| This function performs SM3 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. | ||
| SM3 context should be already correctly initialized by Sm3Init(), and should not be finalized | ||
| by Sm3Final(). Behavior with invalid context is undefined. | ||
| If Sm3Context is NULL, then return FALSE. | ||
| @param[in, out] Sm3Context Pointer to the SM3 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 SM3 data digest succeeded. | ||
| @retval FALSE SM3 data digest failed. | ||
| **/ | ||
| BOOLEAN | ||
| EFIAPI | ||
| Sm3Update ( | ||
| IN OUT VOID *Sm3Context, | ||
| IN CONST VOID *Data, | ||
| IN UINTN DataSize | ||
| ) | ||
| { | ||
| // | ||
| // Check input parameters. | ||
| // | ||
| if (Sm3Context == NULL) { | ||
| return FALSE; | ||
| } | ||
|
|
||
| // | ||
| // Check invalid parameters, in case that only DataLength was checked in OpenSSL | ||
| // | ||
| if (Data == NULL && DataSize != 0) { | ||
| return FALSE; | ||
| } | ||
|
|
||
| // | ||
| // OpenSSL SM3 Hash Update | ||
| // | ||
| return (BOOLEAN) (sm3_update ((SM3_CTX *) Sm3Context, Data, DataSize)); | ||
| } | ||
|
|
||
| /** | ||
| Completes computation of the SM3 digest value. | ||
| This function completes SM3 hash computation and retrieves the digest value into | ||
| the specified memory. After this function has been called, the SM3 context cannot | ||
| be used again. | ||
| SM3 context should be already correctly initialized by Sm3Init(), and should not be | ||
| finalized by Sm3Final(). Behavior with invalid SM3 context is undefined. | ||
| If Sm3Context is NULL, then return FALSE. | ||
| If HashValue is NULL, then return FALSE. | ||
| @param[in, out] Sm3Context Pointer to the SM3 context. | ||
| @param[out] HashValue Pointer to a buffer that receives the SM3 digest | ||
| value (32 bytes). | ||
| @retval TRUE SM3 digest computation succeeded. | ||
| @retval FALSE SM3 digest computation failed. | ||
| **/ | ||
| BOOLEAN | ||
| EFIAPI | ||
| Sm3Final ( | ||
| IN OUT VOID *Sm3Context, | ||
| OUT UINT8 *HashValue | ||
| ) | ||
| { | ||
| // | ||
| // Check input parameters. | ||
| // | ||
| if (Sm3Context == NULL || HashValue == NULL) { | ||
| return FALSE; | ||
| } | ||
|
|
||
| // | ||
| // OpenSSL SM3 Hash Finalization | ||
| // | ||
| return (BOOLEAN) (sm3_final (HashValue, (SM3_CTX *) Sm3Context)); | ||
| } | ||
|
|
||
| /** | ||
| Computes the SM3 message digest of a input data buffer. | ||
| This function performs the SM3 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 SM3 digest | ||
| value (32 bytes). | ||
| @retval TRUE SM3 digest computation succeeded. | ||
| @retval FALSE SM3 digest computation failed. | ||
| @retval FALSE This interface is not supported. | ||
| **/ | ||
| BOOLEAN | ||
| EFIAPI | ||
| Sm3HashAll ( | ||
| 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 SM3 Hash Computation. | ||
| // | ||
|
|
||
| SM3_CTX c; | ||
| sm3_init(&c); | ||
| sm3_update(&c, Data, DataSize); | ||
| sm3_final(HashValue, &c); | ||
|
|
||
| return TRUE; | ||
| } |
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