| Index: openssl/crypto/des/asm/des686.pl
|
| ===================================================================
|
| --- openssl/crypto/des/asm/des686.pl (revision 105093)
|
| +++ openssl/crypto/des/asm/des686.pl (working copy)
|
| @@ -1,230 +0,0 @@
|
| -#!/usr/local/bin/perl
|
| -
|
| -$prog="des686.pl";
|
| -
|
| -# base code is in microsft
|
| -# op dest, source
|
| -# format.
|
| -#
|
| -
|
| -# WILL NOT WORK ANYMORE WITH desboth.pl
|
| -require "desboth.pl";
|
| -
|
| -if ( ($ARGV[0] eq "elf"))
|
| - { require "x86unix.pl"; }
|
| -elsif ( ($ARGV[0] eq "a.out"))
|
| - { $aout=1; require "x86unix.pl"; }
|
| -elsif ( ($ARGV[0] eq "sol"))
|
| - { $sol=1; require "x86unix.pl"; }
|
| -elsif ( ($ARGV[0] eq "cpp"))
|
| - { $cpp=1; require "x86unix.pl"; }
|
| -elsif ( ($ARGV[0] eq "win32"))
|
| - { require "x86ms.pl"; }
|
| -else
|
| - {
|
| - print STDERR <<"EOF";
|
| -Pick one target type from
|
| - elf - linux, FreeBSD etc
|
| - a.out - old linux
|
| - sol - x86 solaris
|
| - cpp - format so x86unix.cpp can be used
|
| - win32 - Windows 95/Windows NT
|
| -EOF
|
| - exit(1);
|
| - }
|
| -
|
| -&comment("Don't even think of reading this code");
|
| -&comment("It was automatically generated by $prog");
|
| -&comment("Which is a perl program used to generate the x86 assember for");
|
| -&comment("any of elf, a.out, Win32, or Solaris");
|
| -&comment("It can be found in SSLeay 0.6.5+ or in libdes 3.26+");
|
| -&comment("eric <eay\@cryptsoft.com>");
|
| -&comment("");
|
| -
|
| -&file("dx86xxxx");
|
| -
|
| -$L="edi";
|
| -$R="esi";
|
| -
|
| -&DES_encrypt("DES_encrypt1",1);
|
| -&DES_encrypt("DES_encrypt2",0);
|
| -
|
| -&DES_encrypt3("DES_encrypt3",1);
|
| -&DES_encrypt3("DES_decrypt3",0);
|
| -
|
| -&file_end();
|
| -
|
| -sub DES_encrypt
|
| - {
|
| - local($name,$do_ip)=@_;
|
| -
|
| - &function_begin($name,"EXTRN _DES_SPtrans:DWORD");
|
| -
|
| - &comment("");
|
| - &comment("Load the 2 words");
|
| - &mov("eax",&wparam(0));
|
| - &mov($L,&DWP(0,"eax","",0));
|
| - &mov($R,&DWP(4,"eax","",0));
|
| -
|
| - $ksp=&wparam(1);
|
| -
|
| - if ($do_ip)
|
| - {
|
| - &comment("");
|
| - &comment("IP");
|
| - &IP_new($L,$R,"eax");
|
| - }
|
| -
|
| - &comment("");
|
| - &comment("fixup rotate");
|
| - &rotl($R,3);
|
| - &rotl($L,3);
|
| - &exch($L,$R);
|
| -
|
| - &comment("");
|
| - &comment("load counter, key_schedule and enc flag");
|
| - &mov("eax",&wparam(2)); # get encrypt flag
|
| - &mov("ebp",&wparam(1)); # get ks
|
| - &cmp("eax","0");
|
| - &je(&label("start_decrypt"));
|
| -
|
| - # encrypting part
|
| -
|
| - for ($i=0; $i<16; $i+=2)
|
| - {
|
| - &comment("");
|
| - &comment("Round $i");
|
| - &D_ENCRYPT($L,$R,$i*2,"ebp","DES_SPtrans","ecx","edx","eax","ebx");
|
| -
|
| - &comment("");
|
| - &comment("Round ".sprintf("%d",$i+1));
|
| - &D_ENCRYPT($R,$L,($i+1)*2,"ebp","DES_SPtrans","ecx","edx","eax","ebx");
|
| - }
|
| - &jmp(&label("end"));
|
| -
|
| - &set_label("start_decrypt");
|
| -
|
| - for ($i=15; $i>0; $i-=2)
|
| - {
|
| - &comment("");
|
| - &comment("Round $i");
|
| - &D_ENCRYPT($L,$R,$i*2,"ebp","DES_SPtrans","ecx","edx","eax","ebx");
|
| - &comment("");
|
| - &comment("Round ".sprintf("%d",$i-1));
|
| - &D_ENCRYPT($R,$L,($i-1)*2,"ebp","DES_SPtrans","ecx","edx","eax","ebx");
|
| - }
|
| -
|
| - &set_label("end");
|
| -
|
| - &comment("");
|
| - &comment("Fixup");
|
| - &rotr($L,3); # r
|
| - &rotr($R,3); # l
|
| -
|
| - if ($do_ip)
|
| - {
|
| - &comment("");
|
| - &comment("FP");
|
| - &FP_new($R,$L,"eax");
|
| - }
|
| -
|
| - &mov("eax",&wparam(0));
|
| - &mov(&DWP(0,"eax","",0),$L);
|
| - &mov(&DWP(4,"eax","",0),$R);
|
| -
|
| - &function_end($name);
|
| - }
|
| -
|
| -
|
| -# The logic is to load R into 2 registers and operate on both at the same time.
|
| -# We also load the 2 R's into 2 more registers so we can do the 'move word down a byte'
|
| -# while also masking the other copy and doing a lookup. We then also accumulate the
|
| -# L value in 2 registers then combine them at the end.
|
| -sub D_ENCRYPT
|
| - {
|
| - local($L,$R,$S,$ks,$desSP,$u,$t,$tmp1,$tmp2,$tmp3)=@_;
|
| -
|
| - &mov( $u, &DWP(&n2a($S*4),$ks,"",0));
|
| - &mov( $t, &DWP(&n2a(($S+1)*4),$ks,"",0));
|
| - &xor( $u, $R );
|
| - &xor( $t, $R );
|
| - &rotr( $t, 4 );
|
| -
|
| - # the numbers at the end of the line are origional instruction order
|
| - &mov( $tmp2, $u ); # 1 2
|
| - &mov( $tmp1, $t ); # 1 1
|
| - &and( $tmp2, "0xfc" ); # 1 4
|
| - &and( $tmp1, "0xfc" ); # 1 3
|
| - &shr( $t, 8 ); # 1 5
|
| - &xor( $L, &DWP("0x100+$desSP",$tmp1,"",0)); # 1 7
|
| - &shr( $u, 8 ); # 1 6
|
| - &mov( $tmp1, &DWP(" $desSP",$tmp2,"",0)); # 1 8
|
| -
|
| - &mov( $tmp2, $u ); # 2 2
|
| - &xor( $L, $tmp1 ); # 1 9
|
| - &and( $tmp2, "0xfc" ); # 2 4
|
| - &mov( $tmp1, $t ); # 2 1
|
| - &and( $tmp1, "0xfc" ); # 2 3
|
| - &shr( $t, 8 ); # 2 5
|
| - &xor( $L, &DWP("0x300+$desSP",$tmp1,"",0)); # 2 7
|
| - &shr( $u, 8 ); # 2 6
|
| - &mov( $tmp1, &DWP("0x200+$desSP",$tmp2,"",0)); # 2 8
|
| - &mov( $tmp2, $u ); # 3 2
|
| -
|
| - &xor( $L, $tmp1 ); # 2 9
|
| - &and( $tmp2, "0xfc" ); # 3 4
|
| -
|
| - &mov( $tmp1, $t ); # 3 1
|
| - &shr( $u, 8 ); # 3 6
|
| - &and( $tmp1, "0xfc" ); # 3 3
|
| - &shr( $t, 8 ); # 3 5
|
| - &xor( $L, &DWP("0x500+$desSP",$tmp1,"",0)); # 3 7
|
| - &mov( $tmp1, &DWP("0x400+$desSP",$tmp2,"",0)); # 3 8
|
| -
|
| - &and( $t, "0xfc" ); # 4 1
|
| - &xor( $L, $tmp1 ); # 3 9
|
| -
|
| - &and( $u, "0xfc" ); # 4 2
|
| - &xor( $L, &DWP("0x700+$desSP",$t,"",0)); # 4 3
|
| - &xor( $L, &DWP("0x600+$desSP",$u,"",0)); # 4 4
|
| - }
|
| -
|
| -sub PERM_OP
|
| - {
|
| - local($a,$b,$tt,$shift,$mask)=@_;
|
| -
|
| - &mov( $tt, $a );
|
| - &shr( $tt, $shift );
|
| - &xor( $tt, $b );
|
| - &and( $tt, $mask );
|
| - &xor( $b, $tt );
|
| - &shl( $tt, $shift );
|
| - &xor( $a, $tt );
|
| - }
|
| -
|
| -sub IP_new
|
| - {
|
| - local($l,$r,$tt)=@_;
|
| -
|
| - &PERM_OP($r,$l,$tt, 4,"0x0f0f0f0f");
|
| - &PERM_OP($l,$r,$tt,16,"0x0000ffff");
|
| - &PERM_OP($r,$l,$tt, 2,"0x33333333");
|
| - &PERM_OP($l,$r,$tt, 8,"0x00ff00ff");
|
| - &PERM_OP($r,$l,$tt, 1,"0x55555555");
|
| - }
|
| -
|
| -sub FP_new
|
| - {
|
| - local($l,$r,$tt)=@_;
|
| -
|
| - &PERM_OP($l,$r,$tt, 1,"0x55555555");
|
| - &PERM_OP($r,$l,$tt, 8,"0x00ff00ff");
|
| - &PERM_OP($l,$r,$tt, 2,"0x33333333");
|
| - &PERM_OP($r,$l,$tt,16,"0x0000ffff");
|
| - &PERM_OP($l,$r,$tt, 4,"0x0f0f0f0f");
|
| - }
|
| -
|
| -sub n2a
|
| - {
|
| - sprintf("%d",$_[0]);
|
| - }
|
|
|