1 /** @file 2 Header file for Md5. 3 4 Copyright (c) 2004 - 2008, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #ifndef _MD5_H_ 16 #define _MD5_H_ 17 18 #include <Uefi.h> 19 #include <Library/BaseLib.h> 20 #include <Library/BaseMemoryLib.h> 21 #include <Library/NetLib.h> 22 23 #define MD5_HASHSIZE 16 24 25 typedef struct _MD5_CTX { 26 EFI_STATUS Status; 27 UINT64 Length; 28 UINT32 States[MD5_HASHSIZE / sizeof (UINT32)]; 29 UINT8 M[64]; 30 UINTN Count; 31 } MD5_CTX; 32 33 /** 34 Initialize four 32-bits chaining variables and use them to do the Md5 transform. 35 36 @param[out] Md5Ctx The data structure of Md5. 37 38 @retval EFI_SUCCESS Initialization is ok. 39 **/ 40 EFI_STATUS 41 MD5Init ( 42 OUT MD5_CTX *Md5Ctx 43 ); 44 45 /** 46 the external interface of Md5 algorithm 47 48 @param[in, out] Md5Ctx The data structure of storing the original data 49 segment and the final result. 50 @param[in] Data The data wanted to be transformed. 51 @param[in] DataLen The length of data. 52 53 @retval EFI_SUCCESS The transform is ok. 54 @retval Others Other errors as indicated. 55 **/ 56 EFI_STATUS 57 MD5Update ( 58 IN OUT MD5_CTX *Md5Ctx, 59 IN VOID *Data, 60 IN UINTN DataLen 61 ); 62 63 /** 64 Accumulate the MD5 value of every data segment and generate the finial 65 result according to MD5 algorithm. 66 67 @param[in, out] Md5Ctx The data structure of storing the original data 68 segment and the final result. 69 @param[out] HashVal The final 128-bits output. 70 71 @retval EFI_SUCCESS The transform is ok. 72 @retval Others Other errors as indicated. 73 **/ 74 EFI_STATUS 75 MD5Final ( 76 IN OUT MD5_CTX *Md5Ctx, 77 OUT UINT8 *HashVal 78 ); 79 80 #endif 81
