AmendHub

--- global.h Thu Oct 10 06:59:49 2024 +++ global.h Thu Oct 10 06:59:49 2024 @@ -0,0 +1,32 @@ + +/* GLOBAL.H - RSAREF types and constants + */ + +/* PROTOTYPES should be set to one if and only if the compiler supports + function argument prototyping. + The following makes PROTOTYPES default to 0 if it has not already + been defined with C compiler flags. +*/ +#ifndef PROTOTYPES +#define PROTOTYPES 1 +#endif + +/* POINTER defines a generic pointer type */ +typedef unsigned char *POINTER; + +/* UINT2 defines a two byte word */ +typedef unsigned short int UINT2; + +/* UINT4 defines a four byte word */ +typedef unsigned long int UINT4; + +/* PROTO_LIST is defined depending on how PROTOTYPES is defined above. + If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it + returns an empty list. +*/ +#if PROTOTYPES +#define PROTO_LIST(list) list +#else +#define PROTO_LIST(list) () +#endif + --- LICENSE Tue Oct 15 23:09:48 2024 +++ LICENSE Tue Oct 15 23:09:48 2024 @@ -0,0 +1,7 @@ +MD5 is free software released under the terms of the ISC license: + +Copyright (c) 2024 mrw <plus@m0001a.org> + +Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. --- md5.h Thu Oct 10 06:59:39 2024 +++ md5.h Thu Oct 10 06:59:39 2024 @@ -0,0 +1,38 @@ + +/* MD5.H - header file for MD5C.C + */ + +/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All + rights reserved. + + License to copy and use this software is granted provided that it + is identified as the "RSA Data Security, Inc. MD5 Message-Digest + Algorithm" in all material mentioning or referencing this software + or this function. + + License is also granted to make and use derivative works provided + that such works are identified as "derived from the RSA Data + Security, Inc. MD5 Message-Digest Algorithm" in all material + mentioning or referencing the derived work. + + RSA Data Security, Inc. makes no representations concerning either + the merchantability of this software or the suitability of this + software for any particular purpose. It is provided "as is" + without express or implied warranty of any kind. + + These notices must be retained in any copies of any part of this + documentation and/or software. +*/ + +/* MD5 context. */ +typedef struct { + UINT4 state[4]; /* state (ABCD) */ + UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */ + unsigned char buffer[64]; /* input buffer */ +} MD5_CTX; + +void MD5Init PROTO_LIST ((MD5_CTX *)); +void MD5Update PROTO_LIST +((MD5_CTX *, unsigned char *, unsigned int)); +void MD5Final PROTO_LIST ((unsigned char [16], MD5_CTX *)); + --- MD5.p Wed Oct 16 00:19:17 2024 +++ MD5.p Wed Oct 16 00:19:17 2024 @@ -0,0 +1,30 @@ +{} +{ File: MD5.p } +{} +{ © 2024 mrw <plus@m0001a.org> } +{} +{ Use this with MD5.lib for MD5 digests } +unit MD5Lib; + +interface + +{ An ongoing MD5 calculation. All fields are private. } + type + MD5Ctx = record + state: array[0..3] of LongInt; + count: array[0..1] of LongInt; + buffer: packed array[0..63] of byte; + end; + +{ Call this exactly once, and only when using THINK Pascal < 2! } + procedure InitLibP; +{ Initialize an MD5 context } + procedure MD5InitP (var ctx: MD5Ctx); +{ Update an MD5 context with the given input } + procedure MD5UpdateP (var ctx: MD5Ctx; input: Str255); +{ Retrieve the digest from the context and clear its contents } + procedure MD5FinalP (var digest: Str255; var ctx: MD5Ctx); + +implementation +{ Implementation in MD5.lib } +end. --- md5c.c Tue Oct 15 23:12:34 2024 +++ md5c.c Tue Oct 15 23:12:34 2024 @@ -0,0 +1,339 @@ + +/* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm + */ + +/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All + rights reserved. + + License to copy and use this software is granted provided that it + is identified as the "RSA Data Security, Inc. MD5 Message-Digest + Algorithm" in all material mentioning or referencing this software + or this function. + + License is also granted to make and use derivative works provided + that such works are identified as "derived from the RSA Data + Security, Inc. MD5 Message-Digest Algorithm" in all material + mentioning or referencing the derived work. + + RSA Data Security, Inc. makes no representations concerning either + the merchantability of this software or the suitability of this + software for any particular purpose. It is provided "as is" + without express or implied warranty of any kind. + + These notices must be retained in any copies of any part of this + documentation and/or software. +*/ + +#include "global.h" +#include "md5.h" + +/* Constants for MD5Transform routine. + */ +#define S11 7 +#define S12 12 +#define S13 17 +#define S14 22 +#define S21 5 +#define S22 9 +#define S23 14 +#define S24 20 +#define S31 4 +#define S32 11 +#define S33 16 +#define S34 23 +#define S41 6 +#define S42 10 +#define S43 15 +#define S44 21 + +static void MD5Transform PROTO_LIST ((UINT4 [4], unsigned char [64])); +static void Encode PROTO_LIST +((unsigned char *, UINT4 *, unsigned int)); +static void Decode PROTO_LIST +((UINT4 *, unsigned char *, unsigned int)); +static void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int)); +static void MD5_memset PROTO_LIST ((POINTER, int, unsigned int)); + +#ifdef _MD5_EXPLICIT_INIT +static unsigned char *PADDING; +#else +static unsigned char PADDING[64] = { + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; +#endif + +/* F, G, H and I are basic MD5 functions. + */ +#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) +#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) +#define H(x, y, z) ((x) ^ (y) ^ (z)) +#define I(x, y, z) ((y) ^ ((x) | (~z))) + +/* ROTATE_LEFT rotates x left n bits. + */ +#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + +/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. + Rotation is separate from addition to prevent recomputation. +*/ +#define FF(a, b, c, d, x, s, ac) { \ + (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define GG(a, b, c, d, x, s, ac) { \ + (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define HH(a, b, c, d, x, s, ac) { \ + (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define II(a, b, c, d, x, s, ac) { \ + (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } + +/* MD5 initialization. Begins an MD5 operation, writing a new context. + */ +void MD5Init (context) +MD5_CTX *context; /* context */ +{ + context->count[0] = context->count[1] = 0; + /* Load magic initialization constants. + */ + context->state[0] = 0x67452301; + context->state[1] = 0xefcdab89; + context->state[2] = 0x98badcfe; + context->state[3] = 0x10325476; +} + +/* MD5 block update operation. Continues an MD5 message-digest + operation, processing another message block, and updating the + context. +*/ +void MD5Update (context, input, inputLen) + MD5_CTX *context; /* context */ + unsigned char *input; /* input block */ + unsigned int inputLen; /* length of input block */ +{ + unsigned int i, index, partLen; + + /* Compute number of bytes mod 64 */ + index = (unsigned int)((context->count[0] >> 3) & 0x3F); + + /* Update number of bits */ + if ((context->count[0] += ((UINT4)inputLen << 3)) + < ((UINT4)inputLen << 3)) + context->count[1]++; + context->count[1] += ((UINT4)inputLen >> 29); + + partLen = 64 - index; + + /* Transform as many times as possible. + */ + if (inputLen >= partLen) { + MD5_memcpy + ((POINTER)&context->buffer[index], (POINTER)input, partLen); + MD5Transform (context->state, context->buffer); + + for (i = partLen; i + 63 < inputLen; i += 64) + MD5Transform (context->state, &input[i]); + + index = 0; + } + else + i = 0; + + /* Buffer remaining input */ + MD5_memcpy + ((POINTER)&context->buffer[index], (POINTER)&input[i], + inputLen-i); +} + +/* MD5 finalization. Ends an MD5 message-digest operation, writing the + the message digest and zeroizing the context. +*/ +void MD5Final (digest, context) + unsigned char digest[16]; /* message digest */ + MD5_CTX *context; /* context */ +{ + unsigned char bits[8]; + unsigned int index, padLen; + + /* Save number of bits */ + Encode (bits, context->count, 8); + + /* Pad out to 56 mod 64. + */ + index = (unsigned int)((context->count[0] >> 3) & 0x3f); + padLen = (index < 56) ? (56 - index) : (120 - index); + MD5Update (context, PADDING, padLen); + + /* Append length (before padding) */ + MD5Update (context, bits, 8); + /* Store state in digest */ + Encode (digest, context->state, 16); + + /* Zeroize sensitive information. + */ + MD5_memset ((POINTER)context, 0, sizeof (*context)); +} + +/* MD5 basic transformation. Transforms state based on block. + */ +static void MD5Transform (state, block) + UINT4 state[4]; + unsigned char block[64]; +{ + UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; + + Decode (x, block, 64); + + /* Round 1 */ + FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */ + FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */ + FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ + FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */ + FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */ + FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ + FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */ + FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */ + FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ + FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */ + FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ + FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ + FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ + FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ + FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ + FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ + + /* Round 2 */ + GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */ + GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */ + GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ + GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */ + GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */ + GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */ + GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ + GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */ + GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ + GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ + GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */ + GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ + GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ + GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */ + GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ + GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ + + /* Round 3 */ + HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */ + HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */ + HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ + HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ + HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */ + HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ + HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */ + HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ + HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ + HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */ + HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */ + HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */ + HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */ + HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ + HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ + HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */ + + /* Round 4 */ + II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */ + II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ + II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ + II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */ + II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ + II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */ + II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ + II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */ + II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ + II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ + II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */ + II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ + II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */ + II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ + II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ + II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */ + + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + + /* Zeroize sensitive information. + */ + MD5_memset ((POINTER)x, 0, sizeof (x)); +} + +/* Encodes input (UINT4) into output (unsigned char). Assumes len is + a multiple of 4. +*/ +static void Encode (output, input, len) + unsigned char *output; + UINT4 *input; + unsigned int len; +{ + unsigned int i, j; + + for (i = 0, j = 0; j < len; i++, j += 4) { + output[j] = (unsigned char)(input[i] & 0xff); + output[j+1] = (unsigned char)((input[i] >> 8) & 0xff); + output[j+2] = (unsigned char)((input[i] >> 16) & 0xff); + output[j+3] = (unsigned char)((input[i] >> 24) & 0xff); + } +} + +/* Decodes input (unsigned char) into output (UINT4). Assumes len is + a multiple of 4. +*/ +static void Decode (output, input, len) + UINT4 *output; + unsigned char *input; + unsigned int len; +{ + unsigned int i, j; + + for (i = 0, j = 0; j < len; i++, j += 4) + output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) | + (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24); +} + +/* Note: Replace "for loop" with standard memcpy if possible. + */ + +static void MD5_memcpy (output, input, len) + POINTER output; + POINTER input; + unsigned int len; +{ + unsigned int i; + + for (i = 0; i < len; i++) + output[i] = input[i]; +} + +/* Note: Replace "for loop" with standard memset if possible. + */ +static void MD5_memset (output, value, len) + POINTER output; + int value; + unsigned int len; +{ + unsigned int i; + + for (i = 0; i < len; i++) + ((char *)output)[i] = (char)value; +} + --- md5pascal.c Wed Oct 16 00:20:51 2024 +++ md5pascal.c Wed Oct 16 00:20:51 2024 @@ -0,0 +1,48 @@ +#define _MD5_EXPLICIT_INIT 1 + +#include "md5c.c" + +/* Pascal interface + It's easier to define Pascal functions in THINK C than + it is to call C functions from THINK Pascal +*/ + +/* THINK Pascal < 4 doesn't load libraries' DATA resources. + Call this function once to initialize global state, but + only if you need it! +*/ +pascal void InitLibP() +{ + PADDING = (unsigned char *) NewPtrClear(64); + PADDING[0] = 0x80; +} + +#ifdef _MD5_EXPLICIT_INIT +/* MD5InitP - initialize the MD5 context +*/ +pascal void MD5InitP(MD5_CTX *ctx) +{ + MD5Init(ctx); +} +#endif + +/* MD5UpdateP - update an MD5 digest with a Str255 + This doesn't use pascal.h because that would insert a + null byte. +*/ +pascal void MD5UpdateP(MD5_CTX *ctx, unsigned char *input) +{ + int len = (int) *input++; + MD5Update(ctx, input, len); +} + +/* MD5Final - finalize an MD5 context, retrieving the + digest into a Str255. + This doesn't use pascal.h because that would expect a + null byte to indicate length. +*/ +pascal void MD5FinalP(unsigned char *digest, MD5_CTX *ctx) +{ + *(digest++) = 16; + MD5Final(digest, ctx); +} --- mddriver.c Wed Oct 16 00:06:39 2024 +++ mddriver.c Wed Oct 16 00:06:39 2024 @@ -0,0 +1,270 @@ + +/* MDDRIVER.C - test driver for MD2, MD4 and MD5 + */ + +/* Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All + rights reserved. + + RSA Data Security, Inc. makes no representations concerning either + the merchantability of this software or the suitability of this + software for any particular purpose. It is provided "as is" + without express or implied warranty of any kind. + + These notices must be retained in any copies of any part of this + documentation and/or software. + + Additional main() function ©2024 mrw <plus@m0001a.org> +*/ + +/* The following makes MD default to MD5 if it has not already been + defined with C compiler flags. +*/ +#ifndef MD +#define MD 5 +#endif + +#include <stdio.h> +#include <time.h> +#include <string.h> +#include "global.h" +#if MD == 2 +#include "md2.h" +#endif +#if MD == 4 +#include "md4.h" +#endif +#if MD == 5 +#include "md5.h" +#endif + +/* for ccommand - mrw */ +#include <console.h> + +/* Length of test block, number of test blocks. + */ +#define TEST_BLOCK_LEN 1000 +#define TEST_BLOCK_COUNT 1000 + +static void MDString PROTO_LIST ((char *, unsigned char [16])); +static void MDTimeTrial PROTO_LIST ((void)); +static void MDTestSuite PROTO_LIST ((void)); +static void MDFile PROTO_LIST ((char *)); +static void MDFilter PROTO_LIST ((void)); +static void MDPrint PROTO_LIST ((unsigned char [16])); + +#if MD == 2 +#define MD_CTX MD2_CTX +#define MDInit MD2Init +#define MDUpdate MD2Update +#define MDFinal MD2Final +#endif +#if MD == 4 +#define MD_CTX MD4_CTX +#define MDInit MD4Init +#define MDUpdate MD4Update +#define MDFinal MD4Final +#endif +#if MD == 5 +#define MD_CTX MD5_CTX +#define MDInit MD5Init +#define MDUpdate MD5Update +#define MDFinal MD5Final +#endif + + +/* Main driver. + + Arguments (may be any combination): + -sstring - digests string + -t - runs time trial + -x - runs test script + filename - digests file + (none) - digests standard input +*/ +int main (argc, argv) + int argc; + char *argv[]; +{ + int i; + + argc = ccommand(&argv); + + if (argc > 1) + for (i = 1; i < argc; i++) + if (argv[i][0] == '-' && argv[i][1] == 's') + MDString (argv[i] + 2, NULL); + else if (strcmp (argv[i], "-t") == 0) + MDTimeTrial (); + else if (strcmp (argv[i], "-x") == 0) + MDTestSuite (); + else + MDFile (argv[i]); + else + MDFilter (); + + return (0); +} +/* Added so MDTestSuite can check output - mrw +*/ +static int MDEqual(unsigned char a[16], unsigned char b[16]) +{ + int i; + for (i = 0; i < sizeof(a); i++) { + if (a[i] != b[i]) + return 0; + } + + return 1; +} + +/* Digests a string and prints the result. + * + * Extended to check expected digest. + */ +static void MDString (string, expected) + char *string; + unsigned char expected[16]; +{ + MD_CTX context; + unsigned char digest[16]; + unsigned int len = strlen (string); + + MDInit (&context); + MDUpdate (&context, (unsigned char *)string, len); + MDFinal (digest, &context); + + printf ("MD%d (\"%s\") = ", MD, string); + MDPrint (digest); + + if (expected && !MDEqual(digest, expected)) { + printf(" ** FAIL **"); + } + + printf ("\n"); +} + +/* Measures the time to digest TEST_BLOCK_COUNT TEST_BLOCK_LEN-byte + blocks. +*/ +static void MDTimeTrial () +{ + MD_CTX context; + time_t endTime, startTime; + unsigned char block[TEST_BLOCK_LEN], digest[16]; + unsigned int i; + + printf + ("MD%d time trial. Digesting %d %d-byte blocks ...", MD, + TEST_BLOCK_LEN, TEST_BLOCK_COUNT); + + /* Initialize block */ + for (i = 0; i < TEST_BLOCK_LEN; i++) + block[i] = (unsigned char)(i & 0xff); + + /* Start timer */ + time (&startTime); + + /* Digest blocks */ + MDInit (&context); + for (i = 0; i < TEST_BLOCK_COUNT; i++) + MDUpdate (&context, block, TEST_BLOCK_LEN); + MDFinal (digest, &context); + + /* Stop timer */ + time (&endTime); + + printf (" done\n"); + printf ("Digest = "); + MDPrint (digest); + printf ("\nTime = %ld seconds\n", (long)(endTime-startTime)); + printf + ("Speed = %ld bytes/second\n", + (long)TEST_BLOCK_LEN * (long)TEST_BLOCK_COUNT/(endTime-startTime)); +} + +/* Digests a reference suite of strings and prints the results. + */ +static void MDTestSuite () +{ + unsigned char digests[7][16] = { + { 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04, 0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E }, + { 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8, 0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 }, + { 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0, 0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 }, + { 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D, 0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 }, + { 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00, 0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B }, + { 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5, 0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F }, + { 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55, 0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }, + }; + + printf ("MD%d test suite:\n", MD); + + + MDString ("", digests[0]); + MDString ("a", digests[1]); + MDString ("abc", digests[2]); + MDString ("message digest", digests[3]); + MDString ("abcdefghijklmnopqrstuvwxyz", digests[4]); + MDString + ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", + digests[5]); + MDString + ("1234567890123456789012345678901234567890\ +1234567890123456789012345678901234567890", + digests[6]); +} + +/* Digests a file and prints the result. + */ +static void MDFile (filename) + char *filename; +{ + FILE *file; + MD_CTX context; + int len; + unsigned char buffer[1024], digest[16]; + + if ((file = fopen (filename, "rb")) == NULL) + printf ("%s can't be opened\n", filename); + + else { + MDInit (&context); + while (len = fread (buffer, 1, 1024, file)) + MDUpdate (&context, buffer, len); + MDFinal (digest, &context); + + fclose (file); + + printf ("MD%d (%s) = ", MD, filename); + MDPrint (digest); + printf ("\n"); + } +} + +/* Digests the standard input and prints the result. + */ +static void MDFilter () +{ + MD_CTX context; + int len; + unsigned char buffer[16], digest[16]; + + MDInit (&context); + while (len = fread (buffer, 1, 16, stdin)) + MDUpdate (&context, buffer, len); + MDFinal (digest, &context); + + MDPrint (digest); + printf ("\n"); +} + +/* Prints a message digest in hexadecimal. + */ +static void MDPrint (digest) + unsigned char digest[16]; +{ + unsigned int i; + + for (i = 0; i < 16; i++) + printf ("%02x", digest[i]); +} + --- README Wed Oct 16 00:20:25 2024 +++ README Wed Oct 16 00:33:37 2024 @@ -0,0 +1,79 @@ +** MD5 ** + +A library that implements the MD5 interface described in RFC 1321 + +https://www.ietf.org/rfc/rfc1321.txt + +Developed by mrw <plus@m0001a.org> + +** INTERFACE ** + +MD5_CTX + An opaque object that maintains an MD5 digest. + +MD5Init(MD5_CTX *ctx) + Initialize an MD5 calculation. + +MD5Update(MD5_CTX *ctx, unsigned char *input, int inputLen) + Add input of length inputLen to the ongoing MD5 + calculation held in ctx. + +MD5Final(unsigned char digest[16], MD5_CTX *ctx); + Store the completed MD5 of ctx into digest, and clear all + state in ctx. + +** NOTES ** + +The source code has been programatically extracted from RFC 1321 with +three changes: + +1. In md5c.c, the PADDING global variable initialization can be + delayed to InitLibP for use in early THINK Pascal versions. + See below for details. + +2. In mddriver.c, main() use's THINK C's ccommand function to + retrieve command line arguments and configure inputs. + +3. Also in mddriver.c, the MDString function takes an expected digest + so it can print a message when the calculated one differs. This + causes MDTestSuite to mention when a digest case fails. + +** HOW TO USE ** + +This repository contains two THINK C 5.0 projects: + +MD5.π + Builds md5c.c and exposes the main function of RFC 1321 + mddriver.c + +MD5Lib.π + Builds md5pascal.c, which defines Pascal wrappers + MD5InitP, MD5UpateP, and MD5FinalP. See also InitLibP below. + +You can reuse this code in several ways: + +1. Include "md5c.c" in your THINK C projects. Don't forget to bring + along and include "global.h" and "md5.h". They've been tested + with THINK C 3 and THINK C 5. + +2. Add "MD5.π" to your THINK C 5 projects. The linker will extract + only the compiled code you use. The THINK C 5 manual recommends + this. + +3. Use "MD5Lib.π" to build and "MD5.lib" you can use in your THINK + Pascal projects. Use the MD5 unit defined in "MD5.p". + Note that THINK Pascal versions before 4 do not + load global variables; for these versions, make to define + _MD5_EXPLICIT_INIT, and call InitLibP exactly once in your program. + For THINK Pascal 4, you should not define _MD5_EXPLICIT_INIT or + call InitLibP. + +** LICENSES ** + +See the license in md5c.c for the original RSA license that covers +md5c.c, md5.h, and global.h. The LICENSE file covers everything else. + +** CHANGELOG ** + +1.0 - 2024-10-15 + - Initial implementation.