From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001 From: Angelos Mouzakitis Date: Tue, 10 Oct 2023 14:33:42 +0000 Subject: Add submodule dependency files Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec --- .../Library/BaseCryptLib/Hash/CryptSha256.c | 223 +++++++++++++++++++++ 1 file changed, 223 insertions(+) create mode 100644 roms/edk2/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha256.c (limited to 'roms/edk2/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha256.c') diff --git a/roms/edk2/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha256.c b/roms/edk2/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha256.c new file mode 100644 index 000000000..38b9b4d84 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha256.c @@ -0,0 +1,223 @@ +/** @file + SHA-256 Digest Wrapper Implementation over OpenSSL. + +Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.
+SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include "InternalCryptLib.h" +#include + +/** + Retrieves the size, in bytes, of the context buffer required for SHA-256 hash operations. + + @return The size, in bytes, of the context buffer required for SHA-256 hash operations. + +**/ +UINTN +EFIAPI +Sha256GetContextSize ( + VOID + ) +{ + // + // Retrieves OpenSSL SHA-256 Context Size + // + return (UINTN) (sizeof (SHA256_CTX)); +} + +/** + Initializes user-supplied memory pointed by Sha256Context as SHA-256 hash context for + subsequent use. + + If Sha256Context is NULL, then return FALSE. + + @param[out] Sha256Context Pointer to SHA-256 context being initialized. + + @retval TRUE SHA-256 context initialization succeeded. + @retval FALSE SHA-256 context initialization failed. + +**/ +BOOLEAN +EFIAPI +Sha256Init ( + OUT VOID *Sha256Context + ) +{ + // + // Check input parameters. + // + if (Sha256Context == NULL) { + return FALSE; + } + + // + // OpenSSL SHA-256 Context Initialization + // + return (BOOLEAN) (SHA256_Init ((SHA256_CTX *) Sha256Context)); +} + +/** + Makes a copy of an existing SHA-256 context. + + If Sha256Context is NULL, then return FALSE. + If NewSha256Context is NULL, then return FALSE. + + @param[in] Sha256Context Pointer to SHA-256 context being copied. + @param[out] NewSha256Context Pointer to new SHA-256 context. + + @retval TRUE SHA-256 context copy succeeded. + @retval FALSE SHA-256 context copy failed. + +**/ +BOOLEAN +EFIAPI +Sha256Duplicate ( + IN CONST VOID *Sha256Context, + OUT VOID *NewSha256Context + ) +{ + // + // Check input parameters. + // + if (Sha256Context == NULL || NewSha256Context == NULL) { + return FALSE; + } + + CopyMem (NewSha256Context, Sha256Context, sizeof (SHA256_CTX)); + + return TRUE; +} + +/** + Digests the input data and updates SHA-256 context. + + This function performs SHA-256 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-256 context should be already correctly initialized by Sha256Init(), and should not be finalized + by Sha256Final(). Behavior with invalid context is undefined. + + If Sha256Context is NULL, then return FALSE. + + @param[in, out] Sha256Context Pointer to the SHA-256 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-256 data digest succeeded. + @retval FALSE SHA-256 data digest failed. + +**/ +BOOLEAN +EFIAPI +Sha256Update ( + IN OUT VOID *Sha256Context, + IN CONST VOID *Data, + IN UINTN DataSize + ) +{ + // + // Check input parameters. + // + if (Sha256Context == NULL) { + return FALSE; + } + + // + // Check invalid parameters, in case that only DataLength was checked in OpenSSL + // + if (Data == NULL && DataSize != 0) { + return FALSE; + } + + // + // OpenSSL SHA-256 Hash Update + // + return (BOOLEAN) (SHA256_Update ((SHA256_CTX *) Sha256Context, Data, DataSize)); +} + +/** + Completes computation of the SHA-256 digest value. + + This function completes SHA-256 hash computation and retrieves the digest value into + the specified memory. After this function has been called, the SHA-256 context cannot + be used again. + SHA-256 context should be already correctly initialized by Sha256Init(), and should not be + finalized by Sha256Final(). Behavior with invalid SHA-256 context is undefined. + + If Sha256Context is NULL, then return FALSE. + If HashValue is NULL, then return FALSE. + + @param[in, out] Sha256Context Pointer to the SHA-256 context. + @param[out] HashValue Pointer to a buffer that receives the SHA-256 digest + value (32 bytes). + + @retval TRUE SHA-256 digest computation succeeded. + @retval FALSE SHA-256 digest computation failed. + +**/ +BOOLEAN +EFIAPI +Sha256Final ( + IN OUT VOID *Sha256Context, + OUT UINT8 *HashValue + ) +{ + // + // Check input parameters. + // + if (Sha256Context == NULL || HashValue == NULL) { + return FALSE; + } + + // + // OpenSSL SHA-256 Hash Finalization + // + return (BOOLEAN) (SHA256_Final (HashValue, (SHA256_CTX *) Sha256Context)); +} + +/** + Computes the SHA-256 message digest of a input data buffer. + + This function performs the SHA-256 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-256 digest + value (32 bytes). + + @retval TRUE SHA-256 digest computation succeeded. + @retval FALSE SHA-256 digest computation failed. + @retval FALSE This interface is not supported. + +**/ +BOOLEAN +EFIAPI +Sha256HashAll ( + 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-256 Hash Computation. + // + if (SHA256 (Data, DataSize, HashValue) == NULL) { + return FALSE; + } else { + return TRUE; + } +} -- cgit