306 lines
7.4 KiB
Raku
306 lines
7.4 KiB
Raku
#!/usr/local/bin/perl
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# Normal is the
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# md5_block_x86(MD5_CTX *c, ULONG *X);
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# version, non-normal is the
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# md5_block_x86(MD5_CTX *c, ULONG *X,int blocks);
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$normal=0;
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push(@INC,"perlasm","../../perlasm");
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require "x86asm.pl";
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&asm_init($ARGV[0],$0);
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$A="eax";
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$B="ebx";
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$C="ecx";
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$D="edx";
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$tmp1="edi";
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$tmp2="ebp";
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$X="esi";
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# What we need to load into $tmp for the next round
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%Ltmp1=("R0",&Np($C), "R1",&Np($C), "R2",&Np($C), "R3",&Np($D));
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@xo=(
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, # R0
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1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, # R1
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5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2, # R2
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0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9, # R3
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);
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&md5_block("md5_block_asm_host_order");
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&asm_finish();
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sub Np
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{
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local($p)=@_;
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local(%n)=($A,$D,$B,$A,$C,$B,$D,$C);
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return($n{$p});
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}
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sub R0
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{
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local($pos,$a,$b,$c,$d,$K,$ki,$s,$t)=@_;
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&mov($tmp1,$C) if $pos < 0;
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&mov($tmp2,&DWP($xo[$ki]*4,$K,"",0)) if $pos < 0; # very first one
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# body proper
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&comment("R0 $ki");
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&xor($tmp1,$d); # F function - part 2
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&and($tmp1,$b); # F function - part 3
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&lea($a,&DWP($t,$a,$tmp2,1));
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&xor($tmp1,$d); # F function - part 4
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&add($a,$tmp1);
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&mov($tmp1,&Np($c)) if $pos < 1; # next tmp1 for R0
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&mov($tmp1,&Np($c)) if $pos == 1; # next tmp1 for R1
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&rotl($a,$s);
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&mov($tmp2,&DWP($xo[$ki+1]*4,$K,"",0)) if ($pos != 2);
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&add($a,$b);
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}
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sub R1
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{
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local($pos,$a,$b,$c,$d,$K,$ki,$s,$t)=@_;
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&comment("R1 $ki");
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&lea($a,&DWP($t,$a,$tmp2,1));
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&xor($tmp1,$b); # G function - part 2
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&and($tmp1,$d); # G function - part 3
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&mov($tmp2,&DWP($xo[$ki+1]*4,$K,"",0)) if ($pos != 2);
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&xor($tmp1,$c); # G function - part 4
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&add($a,$tmp1);
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&mov($tmp1,&Np($c)) if $pos < 1; # G function - part 1
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&mov($tmp1,&Np($c)) if $pos == 1; # G function - part 1
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&rotl($a,$s);
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&add($a,$b);
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}
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sub R2
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{
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local($n,$pos,$a,$b,$c,$d,$K,$ki,$s,$t)=@_;
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# This one is different, only 3 logical operations
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if (($n & 1) == 0)
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{
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&comment("R2 $ki");
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# make sure to do 'D' first, not 'B', else we clash with
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# the last add from the previous round.
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&xor($tmp1,$d); # H function - part 2
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&xor($tmp1,$b); # H function - part 3
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&lea($a,&DWP($t,$a,$tmp2,1));
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&add($a,$tmp1);
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&rotl($a,$s);
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&mov($tmp2,&DWP($xo[$ki+1]*4,$K,"",0));
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&mov($tmp1,&Np($c));
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}
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else
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{
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&comment("R2 $ki");
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# make sure to do 'D' first, not 'B', else we clash with
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# the last add from the previous round.
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&lea($a,&DWP($t,$a,$tmp2,1));
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&add($b,$c); # MOVED FORWARD
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&xor($tmp1,$d); # H function - part 2
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&xor($tmp1,$b); # H function - part 3
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&mov($tmp2,&DWP($xo[$ki+1]*4,$K,"",0)) if ($pos != 2);
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&add($a,$tmp1);
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&mov($tmp1,&Np($c)) if $pos < 1; # H function - part 1
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&mov($tmp1,-1) if $pos == 1; # I function - part 1
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&rotl($a,$s);
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&add($a,$b);
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}
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}
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sub R3
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{
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local($pos,$a,$b,$c,$d,$K,$ki,$s,$t)=@_;
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&comment("R3 $ki");
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# ¬($tmp1)
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&xor($tmp1,$d) if $pos < 0; # I function - part 2
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&or($tmp1,$b); # I function - part 3
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&lea($a,&DWP($t,$a,$tmp2,1));
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&xor($tmp1,$c); # I function - part 4
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&mov($tmp2,&DWP($xo[$ki+1]*4,$K,"",0)) if $pos != 2; # load X/k value
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&mov($tmp2,&wparam(0)) if $pos == 2;
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&add($a,$tmp1);
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&mov($tmp1,-1) if $pos < 1; # H function - part 1
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&add($K,64) if $pos >=1 && !$normal;
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&rotl($a,$s);
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&xor($tmp1,&Np($d)) if $pos <= 0; # I function - part = first time
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&mov($tmp1,&DWP( 0,$tmp2,"",0)) if $pos > 0;
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&add($a,$b);
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}
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sub md5_block
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{
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local($name)=@_;
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&function_begin_B($name,"",3);
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# parameter 1 is the MD5_CTX structure.
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# A 0
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# B 4
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# C 8
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# D 12
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&push("esi");
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&push("edi");
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&mov($tmp1, &wparam(0)); # edi
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&mov($X, &wparam(1)); # esi
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&mov($C, &wparam(2));
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&push("ebp");
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&shl($C, 6);
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&push("ebx");
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&add($C, $X); # offset we end at
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&sub($C, 64);
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&mov($A, &DWP( 0,$tmp1,"",0));
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&push($C); # Put on the TOS
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&mov($B, &DWP( 4,$tmp1,"",0));
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&mov($C, &DWP( 8,$tmp1,"",0));
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&mov($D, &DWP(12,$tmp1,"",0));
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&set_label("start") unless $normal;
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&comment("");
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&comment("R0 section");
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&R0(-2,$A,$B,$C,$D,$X, 0, 7,0xd76aa478);
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&R0( 0,$D,$A,$B,$C,$X, 1,12,0xe8c7b756);
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&R0( 0,$C,$D,$A,$B,$X, 2,17,0x242070db);
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&R0( 0,$B,$C,$D,$A,$X, 3,22,0xc1bdceee);
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&R0( 0,$A,$B,$C,$D,$X, 4, 7,0xf57c0faf);
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&R0( 0,$D,$A,$B,$C,$X, 5,12,0x4787c62a);
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&R0( 0,$C,$D,$A,$B,$X, 6,17,0xa8304613);
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&R0( 0,$B,$C,$D,$A,$X, 7,22,0xfd469501);
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&R0( 0,$A,$B,$C,$D,$X, 8, 7,0x698098d8);
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&R0( 0,$D,$A,$B,$C,$X, 9,12,0x8b44f7af);
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&R0( 0,$C,$D,$A,$B,$X,10,17,0xffff5bb1);
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&R0( 0,$B,$C,$D,$A,$X,11,22,0x895cd7be);
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&R0( 0,$A,$B,$C,$D,$X,12, 7,0x6b901122);
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&R0( 0,$D,$A,$B,$C,$X,13,12,0xfd987193);
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&R0( 0,$C,$D,$A,$B,$X,14,17,0xa679438e);
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&R0( 1,$B,$C,$D,$A,$X,15,22,0x49b40821);
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&comment("");
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&comment("R1 section");
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&R1(-1,$A,$B,$C,$D,$X,16, 5,0xf61e2562);
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&R1( 0,$D,$A,$B,$C,$X,17, 9,0xc040b340);
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&R1( 0,$C,$D,$A,$B,$X,18,14,0x265e5a51);
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&R1( 0,$B,$C,$D,$A,$X,19,20,0xe9b6c7aa);
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&R1( 0,$A,$B,$C,$D,$X,20, 5,0xd62f105d);
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&R1( 0,$D,$A,$B,$C,$X,21, 9,0x02441453);
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&R1( 0,$C,$D,$A,$B,$X,22,14,0xd8a1e681);
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&R1( 0,$B,$C,$D,$A,$X,23,20,0xe7d3fbc8);
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&R1( 0,$A,$B,$C,$D,$X,24, 5,0x21e1cde6);
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&R1( 0,$D,$A,$B,$C,$X,25, 9,0xc33707d6);
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&R1( 0,$C,$D,$A,$B,$X,26,14,0xf4d50d87);
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&R1( 0,$B,$C,$D,$A,$X,27,20,0x455a14ed);
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&R1( 0,$A,$B,$C,$D,$X,28, 5,0xa9e3e905);
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&R1( 0,$D,$A,$B,$C,$X,29, 9,0xfcefa3f8);
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&R1( 0,$C,$D,$A,$B,$X,30,14,0x676f02d9);
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&R1( 1,$B,$C,$D,$A,$X,31,20,0x8d2a4c8a);
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&comment("");
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&comment("R2 section");
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&R2( 0,-1,$A,$B,$C,$D,$X,32, 4,0xfffa3942);
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&R2( 1, 0,$D,$A,$B,$C,$X,33,11,0x8771f681);
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&R2( 2, 0,$C,$D,$A,$B,$X,34,16,0x6d9d6122);
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&R2( 3, 0,$B,$C,$D,$A,$X,35,23,0xfde5380c);
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&R2( 4, 0,$A,$B,$C,$D,$X,36, 4,0xa4beea44);
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&R2( 5, 0,$D,$A,$B,$C,$X,37,11,0x4bdecfa9);
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&R2( 6, 0,$C,$D,$A,$B,$X,38,16,0xf6bb4b60);
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&R2( 7, 0,$B,$C,$D,$A,$X,39,23,0xbebfbc70);
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&R2( 8, 0,$A,$B,$C,$D,$X,40, 4,0x289b7ec6);
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&R2( 9, 0,$D,$A,$B,$C,$X,41,11,0xeaa127fa);
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&R2(10, 0,$C,$D,$A,$B,$X,42,16,0xd4ef3085);
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&R2(11, 0,$B,$C,$D,$A,$X,43,23,0x04881d05);
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&R2(12, 0,$A,$B,$C,$D,$X,44, 4,0xd9d4d039);
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&R2(13, 0,$D,$A,$B,$C,$X,45,11,0xe6db99e5);
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&R2(14, 0,$C,$D,$A,$B,$X,46,16,0x1fa27cf8);
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&R2(15, 1,$B,$C,$D,$A,$X,47,23,0xc4ac5665);
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&comment("");
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&comment("R3 section");
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&R3(-1,$A,$B,$C,$D,$X,48, 6,0xf4292244);
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&R3( 0,$D,$A,$B,$C,$X,49,10,0x432aff97);
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&R3( 0,$C,$D,$A,$B,$X,50,15,0xab9423a7);
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&R3( 0,$B,$C,$D,$A,$X,51,21,0xfc93a039);
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&R3( 0,$A,$B,$C,$D,$X,52, 6,0x655b59c3);
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&R3( 0,$D,$A,$B,$C,$X,53,10,0x8f0ccc92);
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&R3( 0,$C,$D,$A,$B,$X,54,15,0xffeff47d);
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&R3( 0,$B,$C,$D,$A,$X,55,21,0x85845dd1);
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&R3( 0,$A,$B,$C,$D,$X,56, 6,0x6fa87e4f);
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&R3( 0,$D,$A,$B,$C,$X,57,10,0xfe2ce6e0);
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&R3( 0,$C,$D,$A,$B,$X,58,15,0xa3014314);
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&R3( 0,$B,$C,$D,$A,$X,59,21,0x4e0811a1);
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&R3( 0,$A,$B,$C,$D,$X,60, 6,0xf7537e82);
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&R3( 0,$D,$A,$B,$C,$X,61,10,0xbd3af235);
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&R3( 0,$C,$D,$A,$B,$X,62,15,0x2ad7d2bb);
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&R3( 2,$B,$C,$D,$A,$X,63,21,0xeb86d391);
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# &mov($tmp2,&wparam(0)); # done in the last R3
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# &mov($tmp1, &DWP( 0,$tmp2,"",0)); # done is the last R3
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&add($A,$tmp1);
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&mov($tmp1, &DWP( 4,$tmp2,"",0));
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&add($B,$tmp1);
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&mov($tmp1, &DWP( 8,$tmp2,"",0));
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&add($C,$tmp1);
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&mov($tmp1, &DWP(12,$tmp2,"",0));
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&add($D,$tmp1);
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&mov(&DWP( 0,$tmp2,"",0),$A);
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&mov(&DWP( 4,$tmp2,"",0),$B);
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&mov($tmp1,&swtmp(0)) unless $normal;
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&mov(&DWP( 8,$tmp2,"",0),$C);
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&mov(&DWP(12,$tmp2,"",0),$D);
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&cmp($tmp1,$X) unless $normal; # check count
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&jge(&label("start")) unless $normal;
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&pop("eax"); # pop the temp variable off the stack
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&pop("ebx");
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&pop("ebp");
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&pop("edi");
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&pop("esi");
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&ret();
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&function_end_B($name);
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}
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