--- /dev/null
+/** @file\r
+ MD4 Digest Wrapper Implementation over OpenSSL.\r
+\r
+Copyright (c) 2010, 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
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\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 ASSERT().\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
+ // ASSERT if Md4Context is NULL.\r
+ //\r
+ ASSERT (Md4Context != NULL);\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 ASSERT().\r
+ If NewMd4Context is NULL, then ASSERT().\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
+ // ASSERT if Md4Context or NewMd4Context is NULL.\r
+ //\r
+ ASSERT (Md4Context != NULL);\r
+ ASSERT (NewMd4Context != NULL);\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 intialized 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
+\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
+ // ASSERT if Md4Context is NULL\r
+ //\r
+ ASSERT (Md4Context != NULL);\r
+\r
+ //\r
+ // ASSERT if invalid parameters, in case that only DataLength was checked in OpenSSL\r
+ //\r
+ if (Data == NULL) {\r
+ ASSERT (DataSize == 0);\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 intialized 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
+\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
+ // ASSERT if Md4Context is NULL or HashValue is NULL\r
+ //\r
+ ASSERT (Md4Context != NULL);\r
+ ASSERT (HashValue != NULL);\r
+\r
+ //\r
+ // OpenSSL MD4 Hash Finalization\r
+ //\r
+ return (BOOLEAN) (MD4_Final (HashValue, (MD4_CTX *)Md4Context));\r
+}\r