Miguel Ruiz / SDL_lib

SDL standard library

Dependents:   H261_encoder

SDL_test_md5.h@0:dda4f4550403, 2016-09-07 (annotated)

Committer:
miruga27
Date:
Wed Sep 07 18:46:53 2016 +0000
Revision:
0:dda4f4550403
7/09/2016;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
miruga27 0:dda4f4550403 1 /*
miruga27 0:dda4f4550403 2 Simple DirectMedia Layer
miruga27 0:dda4f4550403 3 Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
miruga27 0:dda4f4550403 4
miruga27 0:dda4f4550403 5 This software is provided 'as-is', without any express or implied
miruga27 0:dda4f4550403 6 warranty. In no event will the authors be held liable for any damages
miruga27 0:dda4f4550403 7 arising from the use of this software.
miruga27 0:dda4f4550403 8
miruga27 0:dda4f4550403 9 Permission is granted to anyone to use this software for any purpose,
miruga27 0:dda4f4550403 10 including commercial applications, and to alter it and redistribute it
miruga27 0:dda4f4550403 11 freely, subject to the following restrictions:
miruga27 0:dda4f4550403 12
miruga27 0:dda4f4550403 13 1. The origin of this software must not be misrepresented; you must not
miruga27 0:dda4f4550403 14 claim that you wrote the original software. If you use this software
miruga27 0:dda4f4550403 15 in a product, an acknowledgment in the product documentation would be
miruga27 0:dda4f4550403 16 appreciated but is not required.
miruga27 0:dda4f4550403 17 2. Altered source versions must be plainly marked as such, and must not be
miruga27 0:dda4f4550403 18 misrepresented as being the original software.
miruga27 0:dda4f4550403 19 3. This notice may not be removed or altered from any source distribution.
miruga27 0:dda4f4550403 20 */
miruga27 0:dda4f4550403 21
miruga27 0:dda4f4550403 22 /**
miruga27 0:dda4f4550403 23 * \file SDL_test_md5.h
miruga27 0:dda4f4550403 24 *
miruga27 0:dda4f4550403 25 * Include file for SDL test framework.
miruga27 0:dda4f4550403 26 *
miruga27 0:dda4f4550403 27 * This code is a part of the SDL2_test library, not the main SDL library.
miruga27 0:dda4f4550403 28 */
miruga27 0:dda4f4550403 29
miruga27 0:dda4f4550403 30 /*
miruga27 0:dda4f4550403 31 ***********************************************************************
miruga27 0:dda4f4550403 32 ** Header file for implementation of MD5 **
miruga27 0:dda4f4550403 33 ** RSA Data Security, Inc. MD5 Message-Digest Algorithm **
miruga27 0:dda4f4550403 34 ** Created: 2/17/90 RLR **
miruga27 0:dda4f4550403 35 ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version **
miruga27 0:dda4f4550403 36 ** Revised (for MD5): RLR 4/27/91 **
miruga27 0:dda4f4550403 37 ** -- G modified to have y&~z instead of y&z **
miruga27 0:dda4f4550403 38 ** -- FF, GG, HH modified to add in last register done **
miruga27 0:dda4f4550403 39 ** -- Access pattern: round 2 works mod 5, round 3 works mod 3 **
miruga27 0:dda4f4550403 40 ** -- distinct additive constant for each step **
miruga27 0:dda4f4550403 41 ** -- round 4 added, working mod 7 **
miruga27 0:dda4f4550403 42 ***********************************************************************
miruga27 0:dda4f4550403 43 */
miruga27 0:dda4f4550403 44
miruga27 0:dda4f4550403 45 /*
miruga27 0:dda4f4550403 46 ***********************************************************************
miruga27 0:dda4f4550403 47 ** Message-digest routines: **
miruga27 0:dda4f4550403 48 ** To form the message digest for a message M **
miruga27 0:dda4f4550403 49 ** (1) Initialize a context buffer mdContext using MD5Init **
miruga27 0:dda4f4550403 50 ** (2) Call MD5Update on mdContext and M **
miruga27 0:dda4f4550403 51 ** (3) Call MD5Final on mdContext **
miruga27 0:dda4f4550403 52 ** The message digest is now in mdContext->digest[0...15] **
miruga27 0:dda4f4550403 53 ***********************************************************************
miruga27 0:dda4f4550403 54 */
miruga27 0:dda4f4550403 55
miruga27 0:dda4f4550403 56 #ifndef _SDL_test_md5_h
miruga27 0:dda4f4550403 57 #define _SDL_test_md5_h
miruga27 0:dda4f4550403 58
miruga27 0:dda4f4550403 59 #include "begin_code.h"
miruga27 0:dda4f4550403 60 /* Set up for C function definitions, even when using C++ */
miruga27 0:dda4f4550403 61 #ifdef __cplusplus
miruga27 0:dda4f4550403 62 extern "C" {
miruga27 0:dda4f4550403 63 #endif
miruga27 0:dda4f4550403 64
miruga27 0:dda4f4550403 65 /* ------------ Definitions --------- */
miruga27 0:dda4f4550403 66
miruga27 0:dda4f4550403 67 /* typedef a 32-bit type */
miruga27 0:dda4f4550403 68 typedef unsigned long int MD5UINT4;
miruga27 0:dda4f4550403 69
miruga27 0:dda4f4550403 70 /* Data structure for MD5 (Message-Digest) computation */
miruga27 0:dda4f4550403 71 typedef struct {
miruga27 0:dda4f4550403 72 MD5UINT4 i[2]; /* number of _bits_ handled mod 2^64 */
miruga27 0:dda4f4550403 73 MD5UINT4 buf[4]; /* scratch buffer */
miruga27 0:dda4f4550403 74 unsigned char in[64]; /* input buffer */
miruga27 0:dda4f4550403 75 unsigned char digest[16]; /* actual digest after Md5Final call */
miruga27 0:dda4f4550403 76 } SDLTest_Md5Context;
miruga27 0:dda4f4550403 77
miruga27 0:dda4f4550403 78 /* ---------- Function Prototypes ------------- */
miruga27 0:dda4f4550403 79
miruga27 0:dda4f4550403 80 /**
miruga27 0:dda4f4550403 81 * /brief initialize the context
miruga27 0:dda4f4550403 82 *
miruga27 0:dda4f4550403 83 * /param mdContext pointer to context variable
miruga27 0:dda4f4550403 84 *
miruga27 0:dda4f4550403 85 * Note: The function initializes the message-digest context
miruga27 0:dda4f4550403 86 * mdContext. Call before each new use of the context -
miruga27 0:dda4f4550403 87 * all fields are set to zero.
miruga27 0:dda4f4550403 88 */
miruga27 0:dda4f4550403 89 void SDLTest_Md5Init(SDLTest_Md5Context * mdContext);
miruga27 0:dda4f4550403 90
miruga27 0:dda4f4550403 91
miruga27 0:dda4f4550403 92 /**
miruga27 0:dda4f4550403 93 * /brief update digest from variable length data
miruga27 0:dda4f4550403 94 *
miruga27 0:dda4f4550403 95 * /param mdContext pointer to context variable
miruga27 0:dda4f4550403 96 * /param inBuf pointer to data array/string
miruga27 0:dda4f4550403 97 * /param inLen length of data array/string
miruga27 0:dda4f4550403 98 *
miruga27 0:dda4f4550403 99 * Note: The function updates the message-digest context to account
miruga27 0:dda4f4550403 100 * for the presence of each of the characters inBuf[0..inLen-1]
miruga27 0:dda4f4550403 101 * in the message whose digest is being computed.
miruga27 0:dda4f4550403 102 */
miruga27 0:dda4f4550403 103
miruga27 0:dda4f4550403 104 void SDLTest_Md5Update(SDLTest_Md5Context * mdContext, unsigned char *inBuf,
miruga27 0:dda4f4550403 105 unsigned int inLen);
miruga27 0:dda4f4550403 106
miruga27 0:dda4f4550403 107
miruga27 0:dda4f4550403 108 /*
miruga27 0:dda4f4550403 109 * /brief complete digest computation
miruga27 0:dda4f4550403 110 *
miruga27 0:dda4f4550403 111 * /param mdContext pointer to context variable
miruga27 0:dda4f4550403 112 *
miruga27 0:dda4f4550403 113 * Note: The function terminates the message-digest computation and
miruga27 0:dda4f4550403 114 * ends with the desired message digest in mdContext.digest[0..15].
miruga27 0:dda4f4550403 115 * Always call before using the digest[] variable.
miruga27 0:dda4f4550403 116 */
miruga27 0:dda4f4550403 117
miruga27 0:dda4f4550403 118 void SDLTest_Md5Final(SDLTest_Md5Context * mdContext);
miruga27 0:dda4f4550403 119
miruga27 0:dda4f4550403 120
miruga27 0:dda4f4550403 121 /* Ends C function definitions when using C++ */
miruga27 0:dda4f4550403 122 #ifdef __cplusplus
miruga27 0:dda4f4550403 123 }
miruga27 0:dda4f4550403 124 #endif
miruga27 0:dda4f4550403 125 #include "close_code.h"
miruga27 0:dda4f4550403 126
miruga27 0:dda4f4550403 127 #endif /* _SDL_test_md5_h */
miruga27 0:dda4f4550403 128
miruga27 0:dda4f4550403 129 /* vi: set ts=4 sw=4 expandtab: */