/** @file\r
MD4 Digest Wrapper Implementation over OpenSSL.\r
\r
-Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
//\r
// Retrieves the OpenSSL MD4 Context Size\r
//\r
- return (UINTN)(sizeof (MD4_CTX));\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 ASSERT().\r
+ If Md4Context is NULL, then return FALSE.\r
\r
@param[out] Md4Context Pointer to MD4 context being initialized.\r
\r
)\r
{\r
//\r
- // ASSERT if Md4Context is NULL.\r
+ // Check input parameters.\r
//\r
- ASSERT (Md4Context != NULL);\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
+ 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 ASSERT().\r
- If NewMd4Context is NULL, then ASSERT().\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
{\r
//\r
- // ASSERT if Md4Context or NewMd4Context is NULL.\r
+ // Check input parameters.\r
//\r
- ASSERT (Md4Context != NULL);\r
- ASSERT (NewMd4Context != NULL);\r
+ if (Md4Context == NULL || NewMd4Context == NULL) {\r
+ return FALSE;\r
+ }\r
\r
CopyMem (NewMd4Context, Md4Context, sizeof (MD4_CTX));\r
\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 intialized by Md4Init(), and should not be finalized\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 ASSERT().\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
)\r
{\r
//\r
- // ASSERT if Md4Context is NULL\r
+ // Check input parameters.\r
//\r
- ASSERT (Md4Context != NULL);\r
+ if (Md4Context == NULL) {\r
+ return FALSE;\r
+ }\r
\r
//\r
- // ASSERT if invalid parameters, in case that only DataLength was checked in OpenSSL\r
+ // Check invalid parameters, in case that only DataLength was checked in OpenSSL\r
//\r
- if (Data == NULL) {\r
- ASSERT (DataSize == 0);\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
+ return (BOOLEAN) (MD4_Update ((MD4_CTX *) Md4Context, Data, DataSize));\r
}\r
\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 intialized by Md4Init(), and should not be\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 ASSERT().\r
- If HashValue is NULL, then ASSERT().\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
)\r
{\r
//\r
- // ASSERT if Md4Context is NULL or HashValue is NULL\r
+ // Check input parameters.\r
//\r
- ASSERT (Md4Context != NULL);\r
- ASSERT (HashValue != NULL);\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
+ 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
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