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Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptMd5.c')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptMd5.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptMd5.c b/src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptMd5.c new file mode 100644 index 00000000..2625f049 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/CryptoPkg/Library/BaseCryptLib/Hash/CryptMd5.c @@ -0,0 +1,226 @@ +/** @file + MD5 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/md5.h> + +#ifdef ENABLE_MD5_DEPRECATED_INTERFACES +/** + Retrieves the size, in bytes, of the context buffer required for MD5 hash operations. + + @return The size, in bytes, of the context buffer required for MD5 hash operations. + +**/ +UINTN +EFIAPI +Md5GetContextSize ( + VOID + ) +{ + // + // Retrieves the OpenSSL MD5 Context Size + // + return (UINTN) (sizeof (MD5_CTX)); +} + + +/** + Initializes user-supplied memory pointed by Md5Context as MD5 hash context for + subsequent use. + + If Md5Context is NULL, then return FALSE. + + @param[out] Md5Context Pointer to MD5 context being initialized. + + @retval TRUE MD5 context initialization succeeded. + @retval FALSE MD5 context initialization failed. + +**/ +BOOLEAN +EFIAPI +Md5Init ( + OUT VOID *Md5Context + ) +{ + // + // Check input parameters. + // + if (Md5Context == NULL) { + return FALSE; + } + + // + // OpenSSL MD5 Context Initialization + // + return (BOOLEAN) (MD5_Init ((MD5_CTX *) Md5Context)); +} + +/** + Makes a copy of an existing MD5 context. + + If Md5Context is NULL, then return FALSE. + If NewMd5Context is NULL, then return FALSE. + + @param[in] Md5Context Pointer to MD5 context being copied. + @param[out] NewMd5Context Pointer to new MD5 context. + + @retval TRUE MD5 context copy succeeded. + @retval FALSE MD5 context copy failed. + +**/ +BOOLEAN +EFIAPI +Md5Duplicate ( + IN CONST VOID *Md5Context, + OUT VOID *NewMd5Context + ) +{ + // + // Check input parameters. + // + if (Md5Context == NULL || NewMd5Context == NULL) { + return FALSE; + } + + CopyMem (NewMd5Context, Md5Context, sizeof (MD5_CTX)); + + return TRUE; +} + +/** + Digests the input data and updates MD5 context. + + This function performs MD5 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. + MD5 context should be already correctly initialized by Md5Init(), and should not be finalized + by Md5Final(). Behavior with invalid context is undefined. + + If Md5Context is NULL, then return FALSE. + + @param[in, out] Md5Context Pointer to the MD5 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 MD5 data digest succeeded. + @retval FALSE MD5 data digest failed. + +**/ +BOOLEAN +EFIAPI +Md5Update ( + IN OUT VOID *Md5Context, + IN CONST VOID *Data, + IN UINTN DataSize + ) +{ + // + // Check input parameters. + // + if (Md5Context == NULL) { + return FALSE; + } + + // + // Check invalid parameters, in case that only DataLength was checked in OpenSSL + // + if (Data == NULL && (DataSize != 0)) { + return FALSE; + } + + // + // OpenSSL MD5 Hash Update + // + return (BOOLEAN) (MD5_Update ((MD5_CTX *) Md5Context, Data, DataSize)); +} + +/** + Completes computation of the MD5 digest value. + + This function completes MD5 hash computation and retrieves the digest value into + the specified memory. After this function has been called, the MD5 context cannot + be used again. + MD5 context should be already correctly initialized by Md5Init(), and should not be + finalized by Md5Final(). Behavior with invalid MD5 context is undefined. + + If Md5Context is NULL, then return FALSE. + If HashValue is NULL, then return FALSE. + + @param[in, out] Md5Context Pointer to the MD5 context. + @param[out] HashValue Pointer to a buffer that receives the MD5 digest + value (16 bytes). + + @retval TRUE MD5 digest computation succeeded. + @retval FALSE MD5 digest computation failed. + +**/ +BOOLEAN +EFIAPI +Md5Final ( + IN OUT VOID *Md5Context, + OUT UINT8 *HashValue + ) +{ + // + // Check input parameters. + // + if (Md5Context == NULL || HashValue == NULL) { + return FALSE; + } + + // + // OpenSSL MD5 Hash Finalization + // + return (BOOLEAN) (MD5_Final (HashValue, (MD5_CTX *) Md5Context)); +} + +/** + Computes the MD5 message digest of a input data buffer. + + This function performs the MD5 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 MD5 digest + value (16 bytes). + + @retval TRUE MD5 digest computation succeeded. + @retval FALSE MD5 digest computation failed. + @retval FALSE This interface is not supported. + +**/ +BOOLEAN +EFIAPI +Md5HashAll ( + 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 MD5 Hash Computation. + // + if (MD5 (Data, DataSize, HashValue) == NULL) { + return FALSE; + } else { + return TRUE; + } +} +#endif |