From 690af28bdf827ab9c81648f507eb492c9076d5d3 Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Wed, 25 Oct 2000 15:23:17 +0000 Subject: This commit was manufactured by cvs2git to create branch 'OPENBSD_2_8'. --- src/lib/libcrypto/rc4/asm/rc4-586.pl | 173 ------------------- src/lib/libcrypto/rc4/rc4.h | 88 ---------- src/lib/libcrypto/rc4/rc4_enc.c | 315 ----------------------------------- src/lib/libcrypto/rc4/rc4_locl.h | 4 - src/lib/libcrypto/rc4/rc4_skey.c | 117 ------------- 5 files changed, 697 deletions(-) delete mode 100644 src/lib/libcrypto/rc4/asm/rc4-586.pl delete mode 100644 src/lib/libcrypto/rc4/rc4.h delete mode 100644 src/lib/libcrypto/rc4/rc4_enc.c delete mode 100644 src/lib/libcrypto/rc4/rc4_locl.h delete mode 100644 src/lib/libcrypto/rc4/rc4_skey.c (limited to 'src/lib/libcrypto/rc4') diff --git a/src/lib/libcrypto/rc4/asm/rc4-586.pl b/src/lib/libcrypto/rc4/asm/rc4-586.pl deleted file mode 100644 index 7ef889e5a1..0000000000 --- a/src/lib/libcrypto/rc4/asm/rc4-586.pl +++ /dev/null @@ -1,173 +0,0 @@ -#!/usr/local/bin/perl - -# define for pentium pro friendly version - -push(@INC,"perlasm","../../perlasm"); -require "x86asm.pl"; - -&asm_init($ARGV[0],"rc4-586.pl"); - -$tx="eax"; -$ty="ebx"; -$x="ecx"; -$y="edx"; -$in="esi"; -$out="edi"; -$d="ebp"; - -&RC4("RC4"); - -&asm_finish(); - -sub RC4_loop - { - local($n,$p,$char)=@_; - - &comment("Round $n"); - - if ($char) - { - if ($p >= 0) - { - &mov($ty, &swtmp(2)); - &cmp($ty, $in); - &jle(&label("finished")); - &inc($in); - } - else - { - &add($ty, 8); - &inc($in); - &cmp($ty, $in); - &jl(&label("finished")); - &mov(&swtmp(2), $ty); - } - } - # Moved out - # &mov( $tx, &DWP(0,$d,$x,4)) if $p < 0; - - &add( $y, $tx); - &and( $y, 0xff); - &inc( $x); # NEXT ROUND - &mov( $ty, &DWP(0,$d,$y,4)); - # XXX - &mov( &DWP(-4,$d,$x,4),$ty); # AGI - &add( $ty, $tx); - &and( $x, 0xff); # NEXT ROUND - &and( $ty, 0xff); - &mov( &DWP(0,$d,$y,4),$tx); - &nop(); - &mov( $ty, &DWP(0,$d,$ty,4)); - &mov( $tx, &DWP(0,$d,$x,4)) if $p < 1; # NEXT ROUND - # XXX - - if (!$char) - { - #moved up into last round - if ($p >= 1) - { - &add( $out, 8) - } - &movb( &BP($n,"esp","",0), &LB($ty)); - } - else - { - # Note in+=8 has occured - &movb( &HB($ty), &BP(-1,$in,"",0)); - # XXX - &xorb(&LB($ty), &HB($ty)); - # XXX - &movb(&BP($n,$out,"",0),&LB($ty)); - } - } - - -sub RC4 - { - local($name)=@_; - - &function_begin_B($name,""); - - &comment(""); - - &push("ebp"); - &push("ebx"); - &mov( $d, &wparam(0)); # key - &mov( $ty, &wparam(1)); # num - &push("esi"); - &push("edi"); - - &mov( $x, &DWP(0,$d,"",1)); - &mov( $y, &DWP(4,$d,"",1)); - - &mov( $in, &wparam(2)); - &inc( $x); - - &stack_push(3); # 3 temp variables - &add( $d, 8); - &and( $x, 0xff); - - &lea( $ty, &DWP(-8,$ty,$in)); - - # check for 0 length input - - &mov( $out, &wparam(3)); - &mov( &swtmp(2), $ty); # this is now address to exit at - &mov( $tx, &DWP(0,$d,$x,4)); - - &cmp( $ty, $in); - &jl( &label("end")); # less than 8 bytes - - &set_label("start"); - - # filling DELAY SLOT - &add( $in, 8); - - &RC4_loop(0,-1,0); - &RC4_loop(1,0,0); - &RC4_loop(2,0,0); - &RC4_loop(3,0,0); - &RC4_loop(4,0,0); - &RC4_loop(5,0,0); - &RC4_loop(6,0,0); - &RC4_loop(7,1,0); - - &comment("apply the cipher text"); - # xor the cipher data with input - - #&add( $out, 8); #moved up into last round - - &mov( $tx, &swtmp(0)); - &mov( $ty, &DWP(-8,$in,"",0)); - &xor( $tx, $ty); - &mov( $ty, &DWP(-4,$in,"",0)); - &mov( &DWP(-8,$out,"",0), $tx); - &mov( $tx, &swtmp(1)); - &xor( $tx, $ty); - &mov( $ty, &swtmp(2)); # load end ptr; - &mov( &DWP(-4,$out,"",0), $tx); - &mov( $tx, &DWP(0,$d,$x,4)); - &cmp($in, $ty); - &jle(&label("start")); - - &set_label("end"); - - # There is quite a bit of extra crap in RC4_loop() for this - # first round - &RC4_loop(0,-1,1); - &RC4_loop(1,0,1); - &RC4_loop(2,0,1); - &RC4_loop(3,0,1); - &RC4_loop(4,0,1); - &RC4_loop(5,0,1); - &RC4_loop(6,1,1); - - &set_label("finished"); - &dec( $x); - &stack_pop(3); - &mov( &DWP(-4,$d,"",0),$y); - &movb( &BP(-8,$d,"",0),&LB($x)); - - &function_end($name); - } - diff --git a/src/lib/libcrypto/rc4/rc4.h b/src/lib/libcrypto/rc4/rc4.h deleted file mode 100644 index 8556dddab0..0000000000 --- a/src/lib/libcrypto/rc4/rc4.h +++ /dev/null @@ -1,88 +0,0 @@ -/* crypto/rc4/rc4.h */ -/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#ifndef HEADER_RC4_H -#define HEADER_RC4_H - -#ifdef __cplusplus -extern "C" { -#endif - -#ifdef NO_RC4 -#error RC4 is disabled. -#endif - -#include /* RC4_INT */ - -typedef struct rc4_key_st - { - RC4_INT x,y; - RC4_INT data[256]; - } RC4_KEY; - - -const char *RC4_options(void); -void RC4_set_key(RC4_KEY *key, int len, const unsigned char *data); -void RC4(RC4_KEY *key, unsigned long len, const unsigned char *indata, - unsigned char *outdata); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/lib/libcrypto/rc4/rc4_enc.c b/src/lib/libcrypto/rc4/rc4_enc.c deleted file mode 100644 index d5f18a3a70..0000000000 --- a/src/lib/libcrypto/rc4/rc4_enc.c +++ /dev/null @@ -1,315 +0,0 @@ -/* crypto/rc4/rc4_enc.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include -#include "rc4_locl.h" - -/* RC4 as implemented from a posting from - * Newsgroups: sci.crypt - * From: sterndark@netcom.com (David Sterndark) - * Subject: RC4 Algorithm revealed. - * Message-ID: - * Date: Wed, 14 Sep 1994 06:35:31 GMT - */ - -void RC4(RC4_KEY *key, unsigned long len, const unsigned char *indata, - unsigned char *outdata) - { - register RC4_INT *d; - register RC4_INT x,y,tx,ty; - int i; - - x=key->x; - y=key->y; - d=key->data; - -#if defined(RC4_CHUNK) - /* - * The original reason for implementing this(*) was the fact that - * pre-21164a Alpha CPUs don't have byte load/store instructions - * and e.g. a byte store has to be done with 64-bit load, shift, - * and, or and finally 64-bit store. Peaking data and operating - * at natural word size made it possible to reduce amount of - * instructions as well as to perform early read-ahead without - * suffering from RAW (read-after-write) hazard. This resulted - * in ~40%(**) performance improvement on 21064 box with gcc. - * But it's not only Alpha users who win here:-) Thanks to the - * early-n-wide read-ahead this implementation also exhibits - * >40% speed-up on SPARC and 20-30% on 64-bit MIPS (depending - * on sizeof(RC4_INT)). - * - * (*) "this" means code which recognizes the case when input - * and output pointers appear to be aligned at natural CPU - * word boundary - * (**) i.e. according to 'apps/openssl speed rc4' benchmark, - * crypto/rc4/rc4speed.c exhibits almost 70% speed-up... - * - * Cavets. - * - * - RC4_CHUNK="unsigned long long" should be a #1 choice for - * UltraSPARC. Unfortunately gcc generates very slow code - * (2.5-3 times slower than one generated by Sun's WorkShop - * C) and therefore gcc (at least 2.95 and earlier) should - * always be told that RC4_CHUNK="unsigned long". - * - * - */ - -# define RC4_STEP ( \ - x=(x+1) &0xff, \ - tx=d[x], \ - y=(tx+y)&0xff, \ - ty=d[y], \ - d[y]=tx, \ - d[x]=ty, \ - (RC4_CHUNK)d[(tx+ty)&0xff]\ - ) - - if ( ( ((unsigned long)indata & (sizeof(RC4_CHUNK)-1)) | - ((unsigned long)outdata & (sizeof(RC4_CHUNK)-1)) ) == 0 ) - { - RC4_CHUNK ichunk,otp; - const union { long one; char little; } is_endian = {1}; - - /* - * I reckon we can afford to implement both endian - * cases and to decide which way to take at run-time - * because the machine code appears to be very compact - * and redundant 1-2KB is perfectly tolerable (i.e. - * in case the compiler fails to eliminate it:-). By - * suggestion from Terrel Larson - * who also stands for the is_endian union:-) - * - * Special notes. - * - * - is_endian is declared automatic as doing otherwise - * (declaring static) prevents gcc from eliminating - * the redundant code; - * - compilers (those I've tried) don't seem to have - * problems eliminating either the operators guarded - * by "if (sizeof(RC4_CHUNK)==8)" or the condition - * expressions themselves so I've got 'em to replace - * corresponding #ifdefs from the previous version; - * - I chose to let the redundant switch cases when - * sizeof(RC4_CHUNK)!=8 be (were also #ifdefed - * before); - * - in case you wonder "&(sizeof(RC4_CHUNK)*8-1)" in - * [LB]ESHFT guards against "shift is out of range" - * warnings when sizeof(RC4_CHUNK)!=8 - * - * - */ - if (!is_endian.little) - { /* BIG-ENDIAN CASE */ -# define BESHFT(c) (((sizeof(RC4_CHUNK)-(c)-1)*8)&(sizeof(RC4_CHUNK)*8-1)) - for (;len&-sizeof(RC4_CHUNK);len-=sizeof(RC4_CHUNK)) - { - ichunk = *(RC4_CHUNK *)indata; - otp = RC4_STEP<x=x; - key->y=y; - return; - } - else - { /* LITTLE-ENDIAN CASE */ -# define LESHFT(c) (((c)*8)&(sizeof(RC4_CHUNK)*8-1)) - for (;len&-sizeof(RC4_CHUNK);len-=sizeof(RC4_CHUNK)) - { - ichunk = *(RC4_CHUNK *)indata; - otp = RC4_STEP; - otp |= RC4_STEP<<8; - otp |= RC4_STEP<<16; - otp |= RC4_STEP<<24; - if (sizeof(RC4_CHUNK)==8) - { - otp |= RC4_STEP<>= (sizeof(RC4_CHUNK)-len)<<3; - switch (len&(sizeof(RC4_CHUNK)-1)) - { - case 7: otp = RC4_STEP, i+=8; - case 6: otp |= RC4_STEP<x=x; - key->y=y; - return; - } - } -#endif -#define LOOP(in,out) \ - x=((x+1)&0xff); \ - tx=d[x]; \ - y=(tx+y)&0xff; \ - d[x]=ty=d[y]; \ - d[y]=tx; \ - (out) = d[(tx+ty)&0xff]^ (in); - -#ifndef RC4_INDEX -#define RC4_LOOP(a,b,i) LOOP(*((a)++),*((b)++)) -#else -#define RC4_LOOP(a,b,i) LOOP(a[i],b[i]) -#endif - - i=(int)(len>>3L); - if (i) - { - for (;;) - { - RC4_LOOP(indata,outdata,0); - RC4_LOOP(indata,outdata,1); - RC4_LOOP(indata,outdata,2); - RC4_LOOP(indata,outdata,3); - RC4_LOOP(indata,outdata,4); - RC4_LOOP(indata,outdata,5); - RC4_LOOP(indata,outdata,6); - RC4_LOOP(indata,outdata,7); -#ifdef RC4_INDEX - indata+=8; - outdata+=8; -#endif - if (--i == 0) break; - } - } - i=(int)len&0x07; - if (i) - { - for (;;) - { - RC4_LOOP(indata,outdata,0); if (--i == 0) break; - RC4_LOOP(indata,outdata,1); if (--i == 0) break; - RC4_LOOP(indata,outdata,2); if (--i == 0) break; - RC4_LOOP(indata,outdata,3); if (--i == 0) break; - RC4_LOOP(indata,outdata,4); if (--i == 0) break; - RC4_LOOP(indata,outdata,5); if (--i == 0) break; - RC4_LOOP(indata,outdata,6); if (--i == 0) break; - } - } - key->x=x; - key->y=y; - } diff --git a/src/lib/libcrypto/rc4/rc4_locl.h b/src/lib/libcrypto/rc4/rc4_locl.h deleted file mode 100644 index 3bb80b6ce9..0000000000 --- a/src/lib/libcrypto/rc4/rc4_locl.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef HEADER_RC4_LOCL_H -#define HEADER_RC4_LOCL_H -#include -#endif diff --git a/src/lib/libcrypto/rc4/rc4_skey.c b/src/lib/libcrypto/rc4/rc4_skey.c deleted file mode 100644 index bb10c1ebe2..0000000000 --- a/src/lib/libcrypto/rc4/rc4_skey.c +++ /dev/null @@ -1,117 +0,0 @@ -/* crypto/rc4/rc4_skey.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include -#include "rc4_locl.h" -#include - -const char *RC4_version="RC4" OPENSSL_VERSION_PTEXT; - -const char *RC4_options(void) - { -#ifdef RC4_INDEX - if (sizeof(RC4_INT) == 1) - return("rc4(idx,char)"); - else - return("rc4(idx,int)"); -#else - if (sizeof(RC4_INT) == 1) - return("rc4(ptr,char)"); - else - return("rc4(ptr,int)"); -#endif - } - -/* RC4 as implemented from a posting from - * Newsgroups: sci.crypt - * From: sterndark@netcom.com (David Sterndark) - * Subject: RC4 Algorithm revealed. - * Message-ID: - * Date: Wed, 14 Sep 1994 06:35:31 GMT - */ - -void RC4_set_key(RC4_KEY *key, int len, const unsigned char *data) - { - register RC4_INT tmp; - register int id1,id2; - register RC4_INT *d; - unsigned int i; - - d= &(key->data[0]); - for (i=0; i<256; i++) - d[i]=i; - key->x = 0; - key->y = 0; - id1=id2=0; - -#define SK_LOOP(n) { \ - tmp=d[(n)]; \ - id2 = (data[id1] + tmp + id2) & 0xff; \ - if (++id1 == len) id1=0; \ - d[(n)]=d[id2]; \ - d[id2]=tmp; } - - for (i=0; i < 256; i+=4) - { - SK_LOOP(i+0); - SK_LOOP(i+1); - SK_LOOP(i+2); - SK_LOOP(i+3); - } - } - -- cgit v1.2.3-55-g6feb