/** @file\r
MD5 Digest Wrapper Implementation over OpenSSL.\r
\r
-Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2009 - 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
**/\r
\r
-#include <Library/BaseLib.h>\r
-#include <Library/DebugLib.h>\r
-\r
-#include <Library/BaseCryptLib.h>\r
+#include "InternalCryptLib.h"\r
#include <openssl/md5.h>\r
\r
\r
//\r
// Retrieves the OpenSSL MD5 Context Size\r
//\r
- return (UINTN)(sizeof (MD5_CTX));\r
+ return (UINTN) (sizeof (MD5_CTX));\r
}\r
\r
\r
Initializes user-supplied memory pointed by Md5Context as MD5 hash context for\r
subsequent use.\r
\r
- If Md5Context is NULL, then ASSERT().\r
+ If Md5Context is NULL, then return FALSE.\r
\r
- @param[in, out] Md5Context Pointer to MD5 Context being initialized.\r
+ @param[out] Md5Context Pointer to MD5 context being initialized.\r
\r
@retval TRUE MD5 context initialization succeeded.\r
@retval FALSE MD5 context initialization failed.\r
BOOLEAN\r
EFIAPI\r
Md5Init (\r
- IN OUT VOID *Md5Context\r
+ OUT VOID *Md5Context\r
)\r
{\r
//\r
- // ASSERT if Md5Context is NULL.\r
+ // Check input parameters.\r
//\r
- ASSERT (Md5Context != NULL);\r
+ if (Md5Context == NULL) {\r
+ return FALSE;\r
+ }\r
\r
//\r
// OpenSSL MD5 Context Initialization\r
//\r
- return (BOOLEAN) (MD5_Init ((MD5_CTX *)Md5Context));\r
+ return (BOOLEAN) (MD5_Init ((MD5_CTX *) Md5Context));\r
}\r
\r
+/**\r
+ Makes a copy of an existing MD5 context.\r
+\r
+ If Md5Context is NULL, then return FALSE.\r
+ If NewMd5Context is NULL, then return FALSE.\r
+\r
+ @param[in] Md5Context Pointer to MD5 context being copied.\r
+ @param[out] NewMd5Context Pointer to new MD5 context.\r
+\r
+ @retval TRUE MD5 context copy succeeded.\r
+ @retval FALSE MD5 context copy failed.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+Md5Duplicate (\r
+ IN CONST VOID *Md5Context,\r
+ OUT VOID *NewMd5Context\r
+ )\r
+{\r
+ //\r
+ // Check input parameters.\r
+ //\r
+ if (Md5Context == NULL || NewMd5Context == NULL) {\r
+ return FALSE;\r
+ }\r
+\r
+ CopyMem (NewMd5Context, Md5Context, sizeof (MD5_CTX));\r
+\r
+ return TRUE;\r
+}\r
\r
/**\r
- Performs MD5 digest on a data buffer of the specified length. This function can\r
- be called multiple times to compute the digest of long or discontinuous data streams.\r
+ Digests the input data and updates MD5 context.\r
\r
- If Md5Context is NULL, then ASSERT().\r
+ This function performs MD5 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
+ MD5 context should be already correctly initialized by Md5Init(), and should not be finalized\r
+ by Md5Final(). Behavior with invalid context is undefined.\r
+\r
+ If Md5Context is NULL, then return FALSE.\r
\r
@param[in, out] Md5Context Pointer to the MD5 context.\r
@param[in] Data Pointer to the buffer containing the data to be hashed.\r
- @param[in] DataLength Length of Data buffer in bytes.\r
+ @param[in] DataSize Size of Data buffer in bytes.\r
\r
@retval TRUE MD5 data digest succeeded.\r
- @retval FALSE Invalid MD5 context. After Md5Final function has been called, the\r
- MD5 context cannot be reused.\r
+ @retval FALSE MD5 data digest failed.\r
\r
**/\r
BOOLEAN\r
Md5Update (\r
IN OUT VOID *Md5Context,\r
IN CONST VOID *Data,\r
- IN UINTN DataLength\r
+ IN UINTN DataSize\r
)\r
{\r
//\r
- // ASSERT if Md5Context is NULL\r
+ // Check input parameters.\r
//\r
- ASSERT (Md5Context != NULL);\r
+ if (Md5Context == 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 (DataLength == 0);\r
+ if (Data == NULL && (DataSize != 0)) {\r
+ return FALSE;\r
}\r
\r
//\r
// OpenSSL MD5 Hash Update\r
//\r
- return (BOOLEAN) (MD5_Update ((MD5_CTX *)Md5Context, Data, DataLength));\r
+ return (BOOLEAN) (MD5_Update ((MD5_CTX *) Md5Context, Data, DataSize));\r
}\r
\r
-\r
/**\r
- Completes MD5 hash computation and retrieves the digest value into the specified\r
- memory. After this function has been called, the MD5 context cannot be used again.\r
+ Completes computation of the MD5 digest value.\r
\r
- If Md5Context is NULL, then ASSERT().\r
- If HashValue is NULL, then ASSERT().\r
+ This function completes MD5 hash computation and retrieves the digest value into\r
+ the specified memory. After this function has been called, the MD5 context cannot\r
+ be used again.\r
+ MD5 context should be already correctly initialized by Md5Init(), and should not be\r
+ finalized by Md5Final(). Behavior with invalid MD5 context is undefined.\r
\r
- @param[in, out] Md5Context Pointer to the MD5 context\r
+ If Md5Context is NULL, then return FALSE.\r
+ If HashValue is NULL, then return FALSE.\r
+\r
+ @param[in, out] Md5Context Pointer to the MD5 context.\r
@param[out] HashValue Pointer to a buffer that receives the MD5 digest\r
value (16 bytes).\r
\r
)\r
{\r
//\r
- // ASSERT if Md5Context is NULL or HashValue is NULL\r
+ // Check input parameters.\r
//\r
- ASSERT (Md5Context != NULL);\r
- ASSERT (HashValue != NULL);\r
+ if (Md5Context == NULL || HashValue == NULL) {\r
+ return FALSE;\r
+ }\r
\r
//\r
// OpenSSL MD5 Hash Finalization\r
//\r
- return (BOOLEAN) (MD5_Final (HashValue, (MD5_CTX *)Md5Context));\r
+ return (BOOLEAN) (MD5_Final (HashValue, (MD5_CTX *) Md5Context));\r
+}\r
+\r
+/**\r
+ Computes the MD5 message digest of a input data buffer.\r
+\r
+ This function performs the MD5 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 MD5 digest\r
+ value (16 bytes).\r
+\r
+ @retval TRUE MD5 digest computation succeeded.\r
+ @retval FALSE MD5 digest computation failed.\r
+ @retval FALSE This interface is not supported.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+Md5HashAll (\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 MD5 Hash Computation.\r
+ //\r
+ if (MD5 (Data, DataSize, HashValue) == NULL) {\r
+ return FALSE;\r
+ } else {\r
+ return TRUE;\r
+ }\r
}\r
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