CryptoPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / CryptoPkg / Library / BaseCryptLib / Hash / CryptMd4.c

/** @file\r
  MD4 Digest Wrapper Implementation over OpenSSL.\r
\r
Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "InternalCryptLib.h"\r
#include <openssl/md4.h>\r
\r
/**\r
  Retrieves the size, in bytes, of the context buffer required for MD4 hash operations.\r
\r
  @return  The size, in bytes, of the context buffer required for MD4 hash operations.\r
\r
**/\r
UINTN\r
EFIAPI\r
Md4GetContextSize (\r
  VOID\r
  )\r
{\r
  //\r
  // Retrieves the OpenSSL MD4 Context Size\r
  //\r
  return (UINTN) (sizeof (MD4_CTX));\r
}\r
\r
/**\r
  Initializes user-supplied memory pointed by Md4Context as MD4 hash context for\r
  subsequent use.\r
\r
  If Md4Context is NULL, then return FALSE.\r
\r
  @param[out]  Md4Context  Pointer to MD4 context being initialized.\r
\r
  @retval TRUE   MD4 context initialization succeeded.\r
  @retval FALSE  MD4 context initialization failed.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
Md4Init (\r
  OUT  VOID  *Md4Context\r
  )\r
{\r
  //\r
  // Check input parameters.\r
  //\r
  if (Md4Context == NULL) {\r
    return FALSE;\r
  }\r
\r
  //\r
  // OpenSSL MD4 Context Initialization\r
  //\r
  return (BOOLEAN) (MD4_Init ((MD4_CTX *) Md4Context));\r
}\r
\r
/**\r
  Makes a copy of an existing MD4 context.\r
\r
  If Md4Context is NULL, then return FALSE.\r
  If NewMd4Context is NULL, then return FALSE.\r
\r
  @param[in]  Md4Context     Pointer to MD4 context being copied.\r
  @param[out] NewMd4Context  Pointer to new MD4 context.\r
\r
  @retval TRUE   MD4 context copy succeeded.\r
  @retval FALSE  MD4 context copy failed.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
Md4Duplicate (\r
  IN   CONST VOID  *Md4Context,\r
  OUT  VOID        *NewMd4Context\r
  )\r
{\r
  //\r
  // Check input parameters.\r
  //\r
  if (Md4Context == NULL || NewMd4Context == NULL) {\r
    return FALSE;\r
  }\r
\r
  CopyMem (NewMd4Context, Md4Context, sizeof (MD4_CTX));\r
\r
  return TRUE;\r
}\r
\r
/**\r
  Digests the input data and updates MD4 context.\r
\r
  This function performs MD4 digest on a data buffer of the specified size.\r
  It can be called multiple times to compute the digest of long or discontinuous data streams.\r
  MD4 context should be already correctly initialized by Md4Init(), and should not be finalized\r
  by Md4Final(). Behavior with invalid context is undefined.\r
\r
  If Md4Context is NULL, then return FALSE.\r
\r
  @param[in, out]  Md4Context  Pointer to the MD4 context.\r
  @param[in]       Data        Pointer to the buffer containing the data to be hashed.\r
  @param[in]       DataSize    Size of Data buffer in bytes.\r
\r
  @retval TRUE   MD4 data digest succeeded.\r
  @retval FALSE  MD4 data digest failed.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
Md4Update (\r
  IN OUT  VOID        *Md4Context,\r
  IN      CONST VOID  *Data,\r
  IN      UINTN       DataSize\r
  )\r
{\r
  //\r
  // Check input parameters.\r
  //\r
  if (Md4Context == NULL) {\r
    return FALSE;\r
  }\r
\r
  //\r
  // Check invalid parameters, in case that only DataLength was checked in OpenSSL\r
  //\r
  if (Data == NULL && DataSize != 0) {\r
    return FALSE;\r
  }\r
\r
  //\r
  // OpenSSL MD4 Hash Update\r
  //\r
  return (BOOLEAN) (MD4_Update ((MD4_CTX *) Md4Context, Data, DataSize));\r
}\r
\r
/**\r
  Completes computation of the MD4 digest value.\r
\r
  This function completes MD4 hash computation and retrieves the digest value into\r
  the specified memory. After this function has been called, the MD4 context cannot\r
  be used again.\r
  MD4 context should be already correctly initialized by Md4Init(), and should not be\r
  finalized by Md4Final(). Behavior with invalid MD4 context is undefined.\r
\r
  If Md4Context is NULL, then return FALSE.\r
  If HashValue is NULL, then return FALSE.\r
\r
  @param[in, out]  Md4Context  Pointer to the MD4 context.\r
  @param[out]      HashValue   Pointer to a buffer that receives the MD4 digest\r
                               value (16 bytes).\r
\r
  @retval TRUE   MD4 digest computation succeeded.\r
  @retval FALSE  MD4 digest computation failed.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
Md4Final (\r
  IN OUT  VOID   *Md4Context,\r
  OUT     UINT8  *HashValue\r
  )\r
{\r
  //\r
  // Check input parameters.\r
  //\r
  if (Md4Context == NULL || HashValue == NULL) {\r
    return FALSE;\r
  }\r
\r
  //\r
  // OpenSSL MD4 Hash Finalization\r
  //\r
  return (BOOLEAN) (MD4_Final (HashValue, (MD4_CTX *) Md4Context));\r
}\r
\r
/**\r
  Computes the MD4 message digest of a input data buffer.\r
\r
  This function performs the MD4 message digest of a given data buffer, and places\r
  the digest value into the specified memory.\r
\r
  If this interface is not supported, then return FALSE.\r
\r
  @param[in]   Data        Pointer to the buffer containing the data to be hashed.\r
  @param[in]   DataSize    Size of Data buffer in bytes.\r
  @param[out]  HashValue   Pointer to a buffer that receives the MD4 digest\r
                           value (16 bytes).\r
\r
  @retval TRUE   MD4 digest computation succeeded.\r
  @retval FALSE  MD4 digest computation failed.\r
  @retval FALSE  This interface is not supported.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
Md4HashAll (\r
  IN   CONST VOID  *Data,\r
  IN   UINTN       DataSize,\r
  OUT  UINT8       *HashValue\r
  )\r
{\r
  //\r
  // Check input parameters.\r
  //\r
  if (HashValue == NULL) {\r
    return FALSE;\r
  }\r
  if (Data == NULL && DataSize != 0) {\r
    return FALSE;\r
  }\r
\r
  //\r
  // OpenSSL MD4 Hash Computation.\r
  //\r
  if (MD4 (Data, DataSize, HashValue) == NULL) {\r
    return FALSE;\r
  } else {\r
    return TRUE;\r
  }\r
}\r