diff options
Diffstat (limited to 'crypto/des/asm/des-som2.pl')
| -rw-r--r-- | crypto/des/asm/des-som2.pl | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/crypto/des/asm/des-som2.pl b/crypto/des/asm/des-som2.pl deleted file mode 100644 index b5dbc9737b..0000000000 --- a/crypto/des/asm/des-som2.pl +++ /dev/null @@ -1,308 +0,0 @@ -#!/usr/local/bin/perl -#
-# The inner loop instruction sequence and the IP/FP modifications are from
-# Svend Olaf Mikkelsen <svolaf@inet.uni-c.dk>
-#
-
-$prog="des-som2.pl";
-
-# base code is in microsft
-# op dest, source
-# format.
-#
-
-require "desboth.pl";
-
-if ( ($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 $prog");
-&comment("Which is a perl program used to generate the x86 assember for");
-&comment("any of elf, a.out, Win32, or Solaris");
-&comment("It can be found in SSLeay 0.6.5+ or in libdes 3.26+");
-&comment("eric <eay\@cryptsoft.com>");
-&comment("The inner loop instruction sequence and the IP/FP modifications");
-&comment("are from Svend Olaf Mikkelsen <svolaf\@inet.uni-c.dk>");
-
-&comment("");
-
-&file("dx86xxxx");
-
-$L="edi";
-$R="esi";
-
-&des_encrypt("des_encrypt",1);
-&des_encrypt("des_encrypt2",0);
-
-&des_encrypt3("des_encrypt3",1);
-&des_encrypt3("des_decrypt3",0);
-
-&file_end();
-
-sub des_encrypt
- {
- local($name,$do_ip)=@_;
-
- &function_begin($name,3,"EXTRN _des_SPtrans:DWORD");
-
- &comment("");
- &comment("Load the 2 words");
- &mov("eax",&wparam(0));
- &mov($R,&DWP(0,"eax","",0));
- &mov($L,&DWP(4,"eax","",0));
-
- if ($do_ip)
- {
- &comment("");
- &comment("IP");
- &IP_new($R,$L,"eax",3);
-# &comment("");
-# &comment("fixup rotate");
-# &rotl($R,3);
-# &rotl($L,3);
- }
- else
- {
- &comment("");
- &comment("fixup rotate");
- &rotl($R,3);
- &rotl($L,3);
- }
-
- &comment("");
- &comment("load counter, key_schedule and enc flag");
-
- # encrypting part
-
- $ks="ebp";
-# &xor( "ebx", "ebx" );
- &mov("eax",&wparam(2)); # get encrypt flag
- &xor( "ecx", "ecx" );
- &cmp("eax","0");
- &mov( $ks, &wparam(1) );
- &je(&label("start_decrypt"));
-
- for ($i=0; $i<16; $i+=2)
- {
- &comment("");
- &comment("Round $i");
- &D_ENCRYPT($i,$L,$R,$i*2,$ks,"des_SPtrans","eax","ebx","ecx","edx");
-
- &comment("");
- &comment("Round ".sprintf("%d",$i+1));
- &D_ENCRYPT($i+1,$R,$L,($i+1)*2,$ks,"des_SPtrans","eax","ebx","ecx","edx");
- }
- &jmp(&label("end"));
-
- &set_label("start_decrypt");
-
- for ($i=15; $i>0; $i-=2)
- {
- &comment("");
- &comment("Round $i");
- &D_ENCRYPT(15-$i,$L,$R,$i*2,$ks,"des_SPtrans","eax","ebx","ecx","edx");
- &comment("");
- &comment("Round ".sprintf("%d",$i-1));
- &D_ENCRYPT(15-$i+1,$R,$L,($i-1)*2,$ks,"des_SPtrans","eax","ebx","ecx","edx");
- }
-
- &set_label("end");
-
- if ($do_ip)
- {
-# &comment("");
-# &comment("Fixup");
-# &rotr($L,3); # r
-# &rotr($R,3); # l
- &comment("");
- &comment("FP");
- &FP_new($R,$L,"eax",3);
- }
- else
- {
- &comment("");
- &comment("Fixup");
- &rotr($L,3); # r
- &rotr($R,3); # l
- }
-
- &mov("eax",&wparam(0));
- &mov(&DWP(0,"eax","",0),$L);
- &mov(&DWP(4,"eax","",0),$R);
-
- &function_end($name);
- }
-
-sub D_ENCRYPT
- {
- local($r,$L,$R,$S,$ks,$desSP,$u,$tmp1,$tmp2,$t)=@_;
-
- &mov( $u, &DWP(&n2a($S*4),$ks,"",0));
- &xor( $tmp1, $tmp1);
- &mov( $t, &DWP(&n2a(($S+1)*4),$ks,"",0));
- &xor( $u, $R);
- &xor( $t, $R);
- &and( $u, "0xfcfcfcfc" );
- &and( $t, "0xcfcfcfcf" );
- &movb( &LB($tmp1), &LB($u) );
- &movb( &LB($tmp2), &HB($u) );
- &rotr( $t, 4 );
- &mov( $ks, &DWP(" $desSP",$tmp1,"",0));
- &movb( &LB($tmp1), &LB($t) );
- &xor( $L, $ks);
- &mov( $ks, &DWP("0x200+$desSP",$tmp2,"",0));
- &xor( $L, $ks); ######
- &movb( &LB($tmp2), &HB($t) );
- &shr( $u, 16);
- &mov( $ks, &DWP("0x100+$desSP",$tmp1,"",0));
- &xor( $L, $ks); ######
- &movb( &LB($tmp1), &HB($u) );
- &shr( $t, 16);
- &mov( $ks, &DWP("0x300+$desSP",$tmp2,"",0));
- &xor( $L, $ks);
- &mov( $ks, &DWP(24,"esp","",0)); ####
- &movb( &LB($tmp2), &HB($t) );
- &and( $u, "0xff" );
- &and( $t, "0xff" );
- &mov( $tmp1, &DWP("0x600+$desSP",$tmp1,"",0));
- &xor( $L, $tmp1);
- &mov( $tmp1, &DWP("0x700+$desSP",$tmp2,"",0));
- &xor( $L, $tmp1);
- &mov( $tmp1, &DWP("0x400+$desSP",$u,"",0));
- &xor( $L, $tmp1);
- &mov( $tmp1, &DWP("0x500+$desSP",$t,"",0));
- &xor( $L, $tmp1);
- }
-
-sub PERM_OP
- {
- local($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, $tt );
- }
-
-sub IP
- {
- local($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,$tt, 1,"0x55555555");
- }
-
-sub FP
- {
- local($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]);
- }
-
-# now has a side affect of rotating $a by $shift
-sub R_PERM_OP
- {
- local($a,$b,$tt,$shift,$mask,$last)=@_;
-
- &rotl( $a, $shift ) if ($shift != 0);
- &mov( $tt, $b );
- &xor( $tt, $a );
- &and( $tt, $mask );
- if ($last eq $b)
- {
- &xor( $a, $tt );
- &xor( $b, $tt );
- }
- else
- {
- &xor( $b, $tt );
- &xor( $a, $tt );
- }
- &comment("");
- }
-
-sub IP_new
- {
- local($l,$r,$tt,$lr)=@_;
-
- &R_PERM_OP($l,$r,$tt, 4,"0xf0f0f0f0",$l);
- &R_PERM_OP($r,$l,$tt,20,"0xfff0000f",$l);
- &R_PERM_OP($r,$l,$tt,14,"0x33333333",$r);
- &R_PERM_OP($l,$r,$tt,22,"0x03fc03fc",$r);
- &R_PERM_OP($l,$r,$tt, 9,"0xaaaaaaaa",$r);
-
- if ($lr != 3)
- {
- if (($lr-3) < 0)
- { &rotr($l, 3-$lr); }
- else { &rotl($l, $lr-3); }
- }
- if ($lr != 2)
- {
- if (($lr-2) < 0)
- { &rotr($r, 2-$lr); }
- else { &rotl($r, $lr-2); }
- }
- }
-
-sub FP_new
- {
- local($r,$l,$tt,$lr)=@_;
-
- if ($lr != 2)
- {
- if (($lr-2) < 0)
- { &rotl($r, 2-$lr); }
- else { &rotr($r, $lr-2); }
- }
- if ($lr != 3)
- {
- if (($lr-3) < 0)
- { &rotl($l, 3-$lr); }
- else { &rotr($l, $lr-3); }
- }
-
- &R_PERM_OP($l,$r,$tt, 0,"0xaaaaaaaa",$r);
- &R_PERM_OP($l,$r,$tt,23,"0x03fc03fc",$r);
- &R_PERM_OP($l,$r,$tt,10,"0x33333333",$l);
- &R_PERM_OP($r,$l,$tt,18,"0xfff0000f",$l);
- &R_PERM_OP($r,$l,$tt,12,"0xf0f0f0f0",$r);
- &rotr($l , 4);
- }
-
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