mirror of https://github.com/acidanthera/audk.git
update file header
update function header update a lot of variable naming add some function header and adjust function layout git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6969 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ywu21
parent
02aa4e52ed
commit
242354a22e
|
|
@ -1,7 +1,7 @@
|
|||
/** @file
|
||||
Implementation of MD5 algorithm
|
||||
Implementation of MD5 algorithm.
|
||||
|
||||
Copyright (c) 2004 - 2008, Intel Corporation
|
||||
Copyright (c) 2004 - 2008, Intel Corporation.<BR>
|
||||
All rights reserved. This program and the accompanying materials
|
||||
are licensed and made available under the terms and conditions of the BSD License
|
||||
which accompanies this distribution. The full text of the license may be found at
|
||||
|
|
@ -10,33 +10,25 @@ http://opensource.org/licenses/bsd-license.php
|
|||
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||
|
||||
Module Name:
|
||||
|
||||
Md5.c
|
||||
|
||||
Abstract:
|
||||
|
||||
Implementation of MD5 algorithm
|
||||
|
||||
**/
|
||||
|
||||
#include "Md5.h"
|
||||
|
||||
CONST UINT32 MD5_K[][2] = {
|
||||
CONST UINT32 Md5_Data[][2] = {
|
||||
{ 0, 1 },
|
||||
{ 1, 5 },
|
||||
{ 5, 3 },
|
||||
{ 0, 7 }
|
||||
};
|
||||
|
||||
CONST UINT32 MD5_S[][4] = {
|
||||
CONST UINT32 Md5_S[][4] = {
|
||||
{ 7, 22, 17, 12 },
|
||||
{ 5, 20, 14, 9 },
|
||||
{ 4, 23, 16 ,11 },
|
||||
{ 6, 21, 15, 10 },
|
||||
};
|
||||
|
||||
CONST UINT32 MD5_T[] = {
|
||||
CONST UINT32 Md5_T[] = {
|
||||
0xD76AA478, 0xE8C7B756, 0x242070DB, 0xC1BDCEEE,
|
||||
0xF57C0FAF, 0x4787C62A, 0xA8304613, 0xFD469501,
|
||||
0x698098D8, 0x8B44F7AF, 0xFFFF5BB1, 0x895CD7BE,
|
||||
|
|
@ -80,30 +72,87 @@ CONST UINT8 Md5HashPadding[] =
|
|||
//
|
||||
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
|
||||
|
||||
#define SA S[j & 3]
|
||||
#define SB S[(j + 1) & 3]
|
||||
#define SC S[(j + 2) & 3]
|
||||
#define SD S[(j + 3) & 3]
|
||||
#define SA MedStates[Index2 & 3]
|
||||
#define SB MedStates[(Index2 + 1) & 3]
|
||||
#define SC MedStates[(Index2 + 2) & 3]
|
||||
#define SD MedStates[(Index2 + 3) & 3]
|
||||
|
||||
//
|
||||
// TF1, TF2, TF3, TF4 are basic MD5 transform functions
|
||||
//
|
||||
UINT32 TF1 (UINT32 A, UINT32 B, UINT32 C)
|
||||
/**
|
||||
Tf1 is one basic MD5 transform function.
|
||||
|
||||
@param[in] A A 32-bit quantity.
|
||||
@param[in] B A 32-bit quantity.
|
||||
@param[in] C A 32-bit quantity.
|
||||
|
||||
@return Output was produced as a 32-bit quantity based on the
|
||||
three 32-bit input quantity.
|
||||
**/
|
||||
UINT32
|
||||
Tf1 (
|
||||
UINT32 A,
|
||||
UINT32 B,
|
||||
UINT32 C
|
||||
)
|
||||
{
|
||||
return (A & B) | (~A & C);
|
||||
}
|
||||
|
||||
UINT32 TF2 (UINT32 A, UINT32 B, UINT32 C)
|
||||
/**
|
||||
Tf2 is one basic MD5 transform function.
|
||||
|
||||
@param[in] A A 32-bit quantity.
|
||||
@param[in] B A 32-bit quantity.
|
||||
@param[in] C A 32-bit quantity.
|
||||
|
||||
@return Output was produced as a 32-bit quantity based on the
|
||||
three 32-bit input quantity.
|
||||
**/
|
||||
UINT32
|
||||
Tf2 (
|
||||
UINT32 A,
|
||||
UINT32 B,
|
||||
UINT32 C
|
||||
)
|
||||
{
|
||||
return (A & C) | (B & ~C);
|
||||
}
|
||||
|
||||
UINT32 TF3 (UINT32 A, UINT32 B, UINT32 C)
|
||||
/**
|
||||
Tf3 is one basic MD5 transform function.
|
||||
|
||||
@param[in] A A 32-bit quantity.
|
||||
@param[in] B A 32-bit quantity.
|
||||
@param[in] C A 32-bit quantity.
|
||||
|
||||
@return Output was produced as a 32-bit quantity based on the
|
||||
three 32-bit input quantity.
|
||||
**/
|
||||
UINT32
|
||||
Tf3 (
|
||||
UINT32 A,
|
||||
UINT32 B,
|
||||
UINT32 C
|
||||
)
|
||||
{
|
||||
return A ^ B ^ C;
|
||||
}
|
||||
|
||||
UINT32 TF4 (UINT32 A, UINT32 B, UINT32 C)
|
||||
/**
|
||||
Tf4 is one basic MD5 transform function.
|
||||
|
||||
@param[in] A A 32-bit quantity.
|
||||
@param[in] B A 32-bit quantity.
|
||||
@param[in] C A 32-bit quantity.
|
||||
|
||||
@return Output was produced as a 32-bit quantity based on the
|
||||
three 32-bit input quantity.
|
||||
**/
|
||||
UINT32
|
||||
Tf4 (
|
||||
UINT32 A,
|
||||
UINT32 B,
|
||||
UINT32 C
|
||||
)
|
||||
{
|
||||
return B ^ (A | ~C);
|
||||
}
|
||||
|
|
@ -116,57 +165,54 @@ UINT32
|
|||
IN UINT32 C
|
||||
);
|
||||
|
||||
CONST MD5_TRANSFORM_FUNC MD5_F[] = {
|
||||
TF1,
|
||||
TF2,
|
||||
TF3,
|
||||
TF4
|
||||
CONST MD5_TRANSFORM_FUNC Md5_F[] = {
|
||||
Tf1,
|
||||
Tf2,
|
||||
Tf3,
|
||||
Tf4
|
||||
};
|
||||
|
||||
/**
|
||||
Perform the MD5 transform on 64 bytes data segment
|
||||
|
||||
@param Md5Ctx[in] it includes the data segment for Md5 transform
|
||||
|
||||
@retval NONE.
|
||||
Perform the MD5 transform on 64 bytes data segment.
|
||||
|
||||
@param[in] Md5Ctx It includes the data segment for Md5 transform.
|
||||
**/
|
||||
VOID
|
||||
MD5Transform (
|
||||
IN MD5_CTX *Md5Ctx
|
||||
)
|
||||
{
|
||||
UINT32 i;
|
||||
UINT32 j;
|
||||
UINT32 S[MD5_HASHSIZE >> 2];
|
||||
UINT32 *X;
|
||||
UINT32 k;
|
||||
UINT32 t;
|
||||
UINT32 Index1;
|
||||
UINT32 Index2;
|
||||
UINT32 MedStates[MD5_HASHSIZE >> 2];
|
||||
UINT32 *Data;
|
||||
UINT32 IndexD;
|
||||
UINT32 IndexT;
|
||||
|
||||
X = (UINT32 *) Md5Ctx->M;
|
||||
Data = (UINT32 *) Md5Ctx->M;
|
||||
|
||||
//
|
||||
// Copy MD5 states to S
|
||||
// Copy MD5 states to MedStates
|
||||
//
|
||||
CopyMem (S, Md5Ctx->States, MD5_HASHSIZE);
|
||||
CopyMem (MedStates, Md5Ctx->States, MD5_HASHSIZE);
|
||||
|
||||
t = 0;
|
||||
for (i = 0; i < 4; i++) {
|
||||
k = MD5_K[i][0];
|
||||
for (j = 16; j > 0; j--) {
|
||||
SA += (*MD5_F[i]) (SB, SC, SD) + X[k] + MD5_T[t];
|
||||
SA = ROTATE_LEFT (SA, MD5_S[i][j & 3]);
|
||||
IndexT = 0;
|
||||
for (Index1 = 0; Index1 < 4; Index1++) {
|
||||
IndexD = Md5_Data[Index1][0];
|
||||
for (Index2 = 16; Index2 > 0; Index2--) {
|
||||
SA += (*Md5_F[Index1]) (SB, SC, SD) + Data[IndexD] + Md5_T[IndexT];
|
||||
SA = ROTATE_LEFT (SA, Md5_S[Index1][Index2 & 3]);
|
||||
SA += SB;
|
||||
|
||||
k += MD5_K[i][1];
|
||||
k &= 15;
|
||||
IndexD += Md5_Data[Index1][1];
|
||||
IndexD &= 15;
|
||||
|
||||
t++;
|
||||
IndexT++;
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0; i < 4; i++) {
|
||||
Md5Ctx->States[i] += S[i];
|
||||
for (Index1 = 0; Index1 < 4; Index1++) {
|
||||
Md5Ctx->States[Index1] += MedStates[Index1];
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -178,14 +224,10 @@ MD5Transform (
|
|||
All of Md5 code generated for the sequential 64-bytes data segaments are be
|
||||
accumulated in MD5Final() function.
|
||||
|
||||
@param Md5Ctx[in] the data structure of storing the original data
|
||||
@param[in] Md5Ctx The data structure of storing the original data
|
||||
segment and the final result.
|
||||
|
||||
@param Data[in] the data wanted to be transformed
|
||||
|
||||
@param DataLen[in] the length of data
|
||||
|
||||
@retval NONE.
|
||||
@param[in] Data The data wanted to be transformed.
|
||||
@param[in] DataLen The length of data.
|
||||
**/
|
||||
VOID
|
||||
MD5UpdateBlock (
|
||||
|
|
@ -212,10 +254,9 @@ MD5UpdateBlock (
|
|||
/**
|
||||
Initialize four 32-bits chaining variables and use them to do the Md5 transform.
|
||||
|
||||
@param Md5Ctx[in] the data structure of Md5
|
||||
|
||||
@retval EFI_SUCCESS initialization is ok
|
||||
@param[in] Md5Ctx The data structure of Md5.
|
||||
|
||||
@retval EFI_SUCCESS Initialization is ok.
|
||||
**/
|
||||
EFI_STATUS
|
||||
MD5Init (
|
||||
|
|
@ -238,15 +279,13 @@ MD5Init (
|
|||
/**
|
||||
the external interface of Md5 algorithm
|
||||
|
||||
@param Md5Ctx[in] the data structure of storing the original data
|
||||
@param[in] Md5Ctx The data structure of storing the original data
|
||||
segment and the final result.
|
||||
@param[in] Data The data wanted to be transformed.
|
||||
@param[in] DataLen The length of data.
|
||||
|
||||
@param Data[in] the data wanted to be transformed.
|
||||
|
||||
@param DataLen[in] the length of data.
|
||||
|
||||
@retval EFI_SUCCESS the transform is ok.
|
||||
|
||||
@retval EFI_SUCCESS The transform is ok.
|
||||
@retval Others Some unexpected errors happened.
|
||||
**/
|
||||
EFI_STATUS
|
||||
MD5Update (
|
||||
|
|
@ -265,16 +304,15 @@ MD5Update (
|
|||
}
|
||||
|
||||
/**
|
||||
accumulate the MD5 value of every data segment and generate the finial
|
||||
result according to MD5 algorithm
|
||||
Accumulate the MD5 value of every data segment and generate the finial
|
||||
result according to MD5 algorithm.
|
||||
|
||||
@param Md5Ctx[in] the data structure of storing the original data
|
||||
@param[in] Md5Ctx The data structure of storing the original data
|
||||
segment and the final result.
|
||||
@param[out] HashVal The final 128-bits output.
|
||||
|
||||
@param HashVal[out] the final 128-bits output.
|
||||
|
||||
@retval EFI_SUCCESS the transform is ok.
|
||||
|
||||
@retval EFI_SUCCESS The transform is ok.
|
||||
@retval Others Some unexpected errors happened.
|
||||
**/
|
||||
EFI_STATUS
|
||||
MD5Final (
|
||||
|
|
|
|||
Loading…
Reference in New Issue