diff --git a/polymer/eduke32/Makefile b/polymer/eduke32/Makefile index bfc74488a..f59df8b93 100644 --- a/polymer/eduke32/Makefile +++ b/polymer/eduke32/Makefile @@ -35,7 +35,7 @@ UTIL_LIBS= -lm # -lpthread ENGINE_OBJ=$(ENGINE_ROOT)/$(obj) -ENGINE_OBJS=baselayer cache1d common compat crc32 defs engine polymost texcache dxtfilter hightile textfont smalltextfont kplib lz4 osd pragmas scriptfile mmulti_null mutex xxhash +ENGINE_OBJS=baselayer cache1d common compat crc32 defs engine polymost texcache dxtfilter hightile textfont smalltextfont kplib lz4 osd pragmas scriptfile mmulti_null mutex xxhash md4 ENGINE_EDITOR_OBJS=build config defs ifeq (0,$(NOASM)) ENGINE_OBJS+= a diff --git a/polymer/eduke32/Makefile.msvc b/polymer/eduke32/Makefile.msvc index 448bdeb62..690f0ef45 100644 --- a/polymer/eduke32/Makefile.msvc +++ b/polymer/eduke32/Makefile.msvc @@ -143,6 +143,7 @@ ENGINE_OBJS= \ $(ENGINE_OBJ)\textfont.$o \ $(ENGINE_OBJ)\smalltextfont.$o \ $(ENGINE_OBJ)\lz4.$o \ + $(ENGINE_OBJ)\md4.$o \ $(ENGINE_OBJ)\mmulti_null.$o \ $(ENGINE_OBJ)\osd.$o \ $(ENGINE_OBJ)\pragmas.$o \ diff --git a/polymer/eduke32/build/Makefile.deps b/polymer/eduke32/build/Makefile.deps index 9f586136e..65dd77364 100644 --- a/polymer/eduke32/build/Makefile.deps +++ b/polymer/eduke32/build/Makefile.deps @@ -21,6 +21,7 @@ $(ENGINE_OBJ)/smalltextfont.$o: $(ENGINE_SRC)/smalltextfont.c $(ENGINE_OBJ)/glbuild.$o: $(ENGINE_SRC)/glbuild.c $(ENGINE_INC)/glbuild.h $(ENGINE_INC)/baselayer.h $(ENGINE_OBJ)/kplib.$o: $(ENGINE_SRC)/kplib.c $(ENGINE_INC)/compat.h $(ENGINE_OBJ)/lz4.$o: $(ENGINE_SRC)/lz4.c $(ENGINE_INC)/lz4.h +$(ENGINE_OBJ)/md4.$o: $(ENGINE_SRC)/md4.c $(ENGINE_INC)/md4.h $(ENGINE_OBJ)/osd.$o: $(ENGINE_SRC)/osd.c $(ENGINE_INC)/build.h $(ENGINE_INC)/osd.h $(ENGINE_INC)/compat.h $(ENGINE_INC)/baselayer.h $(ENGINE_OBJ)/pragmas.$o: $(ENGINE_SRC)/pragmas.c $(ENGINE_INC)/compat.h $(ENGINE_OBJ)/scriptfile.$o: $(ENGINE_SRC)/scriptfile.c $(ENGINE_INC)/scriptfile.h $(ENGINE_INC)/cache1d.h $(ENGINE_INC)/compat.h diff --git a/polymer/eduke32/build/include/md4.h b/polymer/eduke32/build/include/md4.h new file mode 100644 index 000000000..0f453b488 --- /dev/null +++ b/polymer/eduke32/build/include/md4.h @@ -0,0 +1,46 @@ +/* MD4.H - header file for MD4C.C + Modified from original version published in RFC1320 by + Jonathon Fowler (jf@jonof.id.au) + */ + +/* 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. MD4 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. MD4 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. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* MD4 context. */ +typedef struct { + unsigned int state[4]; /* state (ABCD) */ + unsigned int count[2]; /* number of bits, modulo 2^64 (lsb first) */ + unsigned char buffer[64]; /* input buffer */ +} MD4_CTX; + +void md4once(const unsigned char *block, unsigned int len, unsigned char digest[16]); +void md4init(MD4_CTX *); +void md4block(MD4_CTX *, const unsigned char *, unsigned int); +void md4finish(unsigned char [16], MD4_CTX *); + +#ifdef __cplusplus +} +#endif diff --git a/polymer/eduke32/build/src/md4.c b/polymer/eduke32/build/src/md4.c new file mode 100644 index 000000000..56dfb51dc --- /dev/null +++ b/polymer/eduke32/build/src/md4.c @@ -0,0 +1,275 @@ +/* MD4C.C - RSA Data Security, Inc., MD4 message-digest algorithm + Modified from original version published in RFC1320 by + Jonathon Fowler (jf@jonof.id.au) + */ + +/* Copyright (C) 1990-2, RSA Data Security, Inc. All rights reserved. + + License to copy and use this software is granted provided that it + is identified as the "RSA Data Security, Inc. MD4 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. MD4 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. + */ + +typedef unsigned char *POINTER; +typedef unsigned short UINT2; +typedef unsigned int UINT4; + +#include "md4.h" +#include "compat.h" + +/* Constants for MD4Transform routine. + */ +#define S11 3 +#define S12 7 +#define S13 11 +#define S14 19 +#define S21 3 +#define S22 5 +#define S23 9 +#define S24 13 +#define S31 3 +#define S32 9 +#define S33 11 +#define S34 15 + +static void MD4Transform(UINT4 [4], const unsigned char [64]); +static void Encode(unsigned char *, const UINT4 *, unsigned int); +static void Decode(UINT4 *, const unsigned char *, unsigned int); +#define MD4_memcpy Bmemcpy +#define MD4_memset memset + +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 +}; + +/* F, G and H are basic MD4 functions. + */ +#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) +#define G(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z))) +#define H(x, y, z) ((x) ^ (y) ^ (z)) + +/* ROTATE_LEFT rotates x left n bits. + */ +#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + +/* FF, GG and HH are transformations for rounds 1, 2 and 3 */ +/* Rotation is separate from addition to prevent recomputation */ +#define FF(a, b, c, d, x, s) { \ + (a) += F ((b), (c), (d)) + (x); \ + (a) = ROTATE_LEFT ((a), (s)); \ + } +#define GG(a, b, c, d, x, s) { \ + (a) += G ((b), (c), (d)) + (x) + (UINT4)0x5a827999; \ + (a) = ROTATE_LEFT ((a), (s)); \ + } +#define HH(a, b, c, d, x, s) { \ + (a) += H ((b), (c), (d)) + (x) + (UINT4)0x6ed9eba1; \ + (a) = ROTATE_LEFT ((a), (s)); \ + } + +void md4once(const unsigned char *block, unsigned int len, unsigned char digest[16]) +{ + MD4_CTX ctx; + + md4init(&ctx); + md4block(&ctx, block, len); + md4finish(digest, &ctx); +} + +/* MD4 initialization. Begins an MD4 operation, writing a new context. + */ +void md4init(MD4_CTX *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; +} + +/* MD4 block update operation. Continues an MD4 message-digest + operation, processing another message block, and updating the + context. + */ +void md4block(MD4_CTX *context, const unsigned char *input, unsigned int inputLen) +{ + 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) + { + MD4_memcpy + ((POINTER)&context->buffer[index], (POINTER)input, partLen); + MD4Transform(context->state, context->buffer); + + for (i = partLen; i + 63 < inputLen; i += 64) + MD4Transform(context->state, &input[i]); + + index = 0; + } + else + i = 0; + + /* Buffer remaining input */ + MD4_memcpy + ((POINTER)&context->buffer[index], (POINTER)&input[i], + inputLen-i); +} + +/* MD4 finalization. Ends an MD4 message-digest operation, writing the + the message digest and zeroizing the context. + */ +void md4finish(unsigned char digest[16], MD4_CTX *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); + md4block(context, PADDING, padLen); + + /* Append length (before padding) */ + md4block(context, bits, 8); + /* Store state in digest */ + Encode(digest, context->state, 16); + + /* Zeroize sensitive information. + */ + MD4_memset((POINTER)context, 0, sizeof(*context)); +} + +/* MD4 basic transformation. Transforms state based on block. + */ +static void MD4Transform(UINT4 state[4], const 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); /* 1 */ + FF(d, a, b, c, x[ 1], S12); /* 2 */ + FF(c, d, a, b, x[ 2], S13); /* 3 */ + FF(b, c, d, a, x[ 3], S14); /* 4 */ + FF(a, b, c, d, x[ 4], S11); /* 5 */ + FF(d, a, b, c, x[ 5], S12); /* 6 */ + FF(c, d, a, b, x[ 6], S13); /* 7 */ + FF(b, c, d, a, x[ 7], S14); /* 8 */ + FF(a, b, c, d, x[ 8], S11); /* 9 */ + FF(d, a, b, c, x[ 9], S12); /* 10 */ + FF(c, d, a, b, x[10], S13); /* 11 */ + FF(b, c, d, a, x[11], S14); /* 12 */ + FF(a, b, c, d, x[12], S11); /* 13 */ + FF(d, a, b, c, x[13], S12); /* 14 */ + FF(c, d, a, b, x[14], S13); /* 15 */ + FF(b, c, d, a, x[15], S14); /* 16 */ + + /* Round 2 */ + GG(a, b, c, d, x[ 0], S21); /* 17 */ + GG(d, a, b, c, x[ 4], S22); /* 18 */ + GG(c, d, a, b, x[ 8], S23); /* 19 */ + GG(b, c, d, a, x[12], S24); /* 20 */ + GG(a, b, c, d, x[ 1], S21); /* 21 */ + GG(d, a, b, c, x[ 5], S22); /* 22 */ + GG(c, d, a, b, x[ 9], S23); /* 23 */ + GG(b, c, d, a, x[13], S24); /* 24 */ + GG(a, b, c, d, x[ 2], S21); /* 25 */ + GG(d, a, b, c, x[ 6], S22); /* 26 */ + GG(c, d, a, b, x[10], S23); /* 27 */ + GG(b, c, d, a, x[14], S24); /* 28 */ + GG(a, b, c, d, x[ 3], S21); /* 29 */ + GG(d, a, b, c, x[ 7], S22); /* 30 */ + GG(c, d, a, b, x[11], S23); /* 31 */ + GG(b, c, d, a, x[15], S24); /* 32 */ + + /* Round 3 */ + HH(a, b, c, d, x[ 0], S31); /* 33 */ + HH(d, a, b, c, x[ 8], S32); /* 34 */ + HH(c, d, a, b, x[ 4], S33); /* 35 */ + HH(b, c, d, a, x[12], S34); /* 36 */ + HH(a, b, c, d, x[ 2], S31); /* 37 */ + HH(d, a, b, c, x[10], S32); /* 38 */ + HH(c, d, a, b, x[ 6], S33); /* 39 */ + HH(b, c, d, a, x[14], S34); /* 40 */ + HH(a, b, c, d, x[ 1], S31); /* 41 */ + HH(d, a, b, c, x[ 9], S32); /* 42 */ + HH(c, d, a, b, x[ 5], S33); /* 43 */ + HH(b, c, d, a, x[13], S34); /* 44 */ + HH(a, b, c, d, x[ 3], S31); /* 45 */ + HH(d, a, b, c, x[11], S32); /* 46 */ + HH(c, d, a, b, x[ 7], S33); /* 47 */ + HH(b, c, d, a, x[15], S34); /* 48 */ + + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + + /* Zeroize sensitive information. + */ + MD4_memset((POINTER)x, 0, sizeof(x)); +} + +/* Encodes input (UINT4) into output (unsigned char). Assumes len is + a multiple of 4. + */ +static void Encode(unsigned char *output, const 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(UINT4 *output, const 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); +}