diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptSm3.c')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptSm3.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptSm3.c b/src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptSm3.c new file mode 100644 index 00000000..470d37ea --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptSm3.c @@ -0,0 +1,234 @@ +/** @file + SM3 Digest Wrapper Implementations over openssl. + +Copyright (c) 2019, Intel Corporation. All rights reserved.<BR> +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include "InternalCryptLib.h" +#include "crypto/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 + // + sm3_init ((SM3_CTX *) Sm3Context); + return TRUE; +} + +/** + Makes a copy of an existing SM3 context. + + If Sm3Context is NULL, then return FALSE. + If NewSm3Context is NULL, then return FALSE. + If this interface is not supported, 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. + @retval FALSE This interface is not supported. + +**/ +BOOLEAN +EFIAPI +Sm3Duplicate ( + IN CONST VOID *Sm3Context, + OUT VOID *NewSm3Context + ) +{ + // + // Check input parameters. + // + if (Sm3Context == NULL || NewSm3Context == NULL) { + return FALSE; + } + + CopyMem (NewSm3Context, 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 + // + sm3_update ((SM3_CTX *) Sm3Context, Data, DataSize); + + return TRUE; +} + +/** + 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 + // + sm3_final (HashValue, (SM3_CTX *) Sm3Context); + + return TRUE; +} + +/** + 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 + ) +{ + SM3_CTX Ctx; + + // + // Check input parameters. + // + if (HashValue == NULL) { + return FALSE; + } + if (Data == NULL && DataSize != 0) { + return FALSE; + } + + // + // SM3 Hash Computation. + // + sm3_init(&Ctx); + + sm3_update(&Ctx, Data, DataSize); + + sm3_final(HashValue, &Ctx); + + return TRUE; +} |