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455 lines
12 KiB
455 lines
12 KiB
#!/usr/bin/env perl |
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# ==================================================================== |
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# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL |
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# project. The module is, however, dual licensed under OpenSSL and |
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# CRYPTOGAMS licenses depending on where you obtain it. For further |
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# details see http://www.openssl.org/~appro/cryptogams/. |
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# ==================================================================== |
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# SHA2 block procedures for MIPS. |
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# October 2010. |
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# |
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# SHA256 performance improvement on MIPS R5000 CPU is ~27% over gcc- |
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# generated code in o32 build and ~55% in n32/64 build. SHA512 [which |
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# for now can only be compiled for MIPS64 ISA] improvement is modest |
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# ~17%, but it comes for free, because it's same instruction sequence. |
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# Improvement coefficients are for aligned input. |
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###################################################################### |
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# There is a number of MIPS ABI in use, O32 and N32/64 are most |
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# widely used. Then there is a new contender: NUBI. It appears that if |
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# one picks the latter, it's possible to arrange code in ABI neutral |
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# manner. Therefore let's stick to NUBI register layout: |
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# |
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($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25)); |
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($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11)); |
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($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23)); |
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($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31)); |
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# |
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# The return value is placed in $a0. Following coding rules facilitate |
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# interoperability: |
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# |
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# - never ever touch $tp, "thread pointer", former $gp [o32 can be |
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# excluded from the rule, because it's specified volatile]; |
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# - copy return value to $t0, former $v0 [or to $a0 if you're adapting |
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# old code]; |
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# - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary; |
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# |
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# For reference here is register layout for N32/64 MIPS ABIs: |
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# |
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# ($zero,$at,$v0,$v1)=map("\$$_",(0..3)); |
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# ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11)); |
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# ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25)); |
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# ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23)); |
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# ($gp,$sp,$fp,$ra)=map("\$$_",(28..31)); |
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# |
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$flavour = shift; # supported flavours are o32,n32,64,nubi32,nubi64 |
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if ($flavour =~ /64|n32/i) { |
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$PTR_ADD="dadd"; # incidentally works even on n32 |
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$PTR_SUB="dsub"; # incidentally works even on n32 |
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$REG_S="sd"; |
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$REG_L="ld"; |
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$PTR_SLL="dsll"; # incidentally works even on n32 |
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$SZREG=8; |
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} else { |
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$PTR_ADD="add"; |
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$PTR_SUB="sub"; |
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$REG_S="sw"; |
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$REG_L="lw"; |
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$PTR_SLL="sll"; |
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$SZREG=4; |
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} |
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$pf = ($flavour =~ /nubi/i) ? $t0 : $t2; |
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# |
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# <appro@openssl.org> |
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# |
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###################################################################### |
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$big_endian=(`echo MIPSEL | $ENV{CC} -E -`=~/MIPSEL/)?1:0 if ($ENV{CC}); |
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for (@ARGV) { $output=$_ if (/^\w[\w\-]*\.\w+$/); } |
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open STDOUT,">$output"; |
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if (!defined($big_endian)) { $big_endian=(unpack('L',pack('N',1))==1); } |
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if ($output =~ /512/) { |
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$label="512"; |
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$SZ=8; |
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$LD="ld"; # load from memory |
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$ST="sd"; # store to memory |
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$SLL="dsll"; # shift left logical |
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$SRL="dsrl"; # shift right logical |
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$ADDU="daddu"; |
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@Sigma0=(28,34,39); |
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@Sigma1=(14,18,41); |
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@sigma0=( 7, 1, 8); # right shift first |
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@sigma1=( 6,19,61); # right shift first |
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$lastK=0x817; |
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$rounds=80; |
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} else { |
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$label="256"; |
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$SZ=4; |
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$LD="lw"; # load from memory |
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$ST="sw"; # store to memory |
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$SLL="sll"; # shift left logical |
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$SRL="srl"; # shift right logical |
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$ADDU="addu"; |
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@Sigma0=( 2,13,22); |
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@Sigma1=( 6,11,25); |
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@sigma0=( 3, 7,18); # right shift first |
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@sigma1=(10,17,19); # right shift first |
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$lastK=0x8f2; |
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$rounds=64; |
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} |
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$MSB = $big_endian ? 0 : ($SZ-1); |
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$LSB = ($SZ-1)&~$MSB; |
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@V=($A,$B,$C,$D,$E,$F,$G,$H)=map("\$$_",(1,2,3,7,24,25,30,31)); |
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@X=map("\$$_",(8..23)); |
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$ctx=$a0; |
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$inp=$a1; |
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$len=$a2; $Ktbl=$len; |
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sub BODY_00_15 { |
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my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_; |
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my ($T1,$tmp0,$tmp1,$tmp2)=(@X[4],@X[5],@X[6],@X[7]); |
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$code.=<<___ if ($i<15); |
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${LD}l @X[1],`($i+1)*$SZ+$MSB`($inp) |
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${LD}r @X[1],`($i+1)*$SZ+$LSB`($inp) |
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___ |
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$code.=<<___ if (!$big_endian && $i<16 && $SZ==4); |
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srl $tmp0,@X[0],24 # byte swap($i) |
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srl $tmp1,@X[0],8 |
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andi $tmp2,@X[0],0xFF00 |
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sll @X[0],@X[0],24 |
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andi $tmp1,0xFF00 |
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sll $tmp2,$tmp2,8 |
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or @X[0],$tmp0 |
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or $tmp1,$tmp2 |
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or @X[0],$tmp1 |
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___ |
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$code.=<<___ if (!$big_endian && $i<16 && $SZ==8); |
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ori $tmp0,$zero,0xFF |
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dsll $tmp2,$tmp0,32 |
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or $tmp0,$tmp2 # 0x000000FF000000FF |
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and $tmp1,@X[0],$tmp0 # byte swap($i) |
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dsrl $tmp2,@X[0],24 |
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dsll $tmp1,24 |
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and $tmp2,$tmp0 |
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dsll $tmp0,8 # 0x0000FF000000FF00 |
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or $tmp1,$tmp2 |
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and $tmp2,@X[0],$tmp0 |
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dsrl @X[0],8 |
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dsll $tmp2,8 |
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and @X[0],$tmp0 |
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or $tmp1,$tmp2 |
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or @X[0],$tmp1 |
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dsrl $tmp1,@X[0],32 |
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dsll @X[0],32 |
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or @X[0],$tmp1 |
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___ |
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$code.=<<___; |
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$ADDU $T1,$X[0],$h # $i |
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$SRL $h,$e,@Sigma1[0] |
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xor $tmp2,$f,$g |
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$SLL $tmp1,$e,`$SZ*8-@Sigma1[2]` |
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and $tmp2,$e |
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$SRL $tmp0,$e,@Sigma1[1] |
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xor $h,$tmp1 |
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$SLL $tmp1,$e,`$SZ*8-@Sigma1[1]` |
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xor $h,$tmp0 |
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$SRL $tmp0,$e,@Sigma1[2] |
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xor $h,$tmp1 |
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$SLL $tmp1,$e,`$SZ*8-@Sigma1[0]` |
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xor $h,$tmp0 |
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xor $tmp2,$g # Ch(e,f,g) |
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xor $tmp0,$tmp1,$h # Sigma1(e) |
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$SRL $h,$a,@Sigma0[0] |
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$ADDU $T1,$tmp2 |
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$LD $tmp2,`$i*$SZ`($Ktbl) # K[$i] |
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$SLL $tmp1,$a,`$SZ*8-@Sigma0[2]` |
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$ADDU $T1,$tmp0 |
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$SRL $tmp0,$a,@Sigma0[1] |
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xor $h,$tmp1 |
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$SLL $tmp1,$a,`$SZ*8-@Sigma0[1]` |
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xor $h,$tmp0 |
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$SRL $tmp0,$a,@Sigma0[2] |
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xor $h,$tmp1 |
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$SLL $tmp1,$a,`$SZ*8-@Sigma0[0]` |
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xor $h,$tmp0 |
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$ST @X[0],`($i%16)*$SZ`($sp) # offload to ring buffer |
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xor $h,$tmp1 # Sigma0(a) |
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or $tmp0,$a,$b |
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and $tmp1,$a,$b |
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and $tmp0,$c |
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or $tmp1,$tmp0 # Maj(a,b,c) |
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$ADDU $T1,$tmp2 # +=K[$i] |
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$ADDU $h,$tmp1 |
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$ADDU $d,$T1 |
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$ADDU $h,$T1 |
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___ |
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$code.=<<___ if ($i>=13); |
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$LD @X[3],`(($i+3)%16)*$SZ`($sp) # prefetch from ring buffer |
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___ |
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} |
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sub BODY_16_XX { |
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my $i=@_[0]; |
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my ($tmp0,$tmp1,$tmp2,$tmp3)=(@X[4],@X[5],@X[6],@X[7]); |
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$code.=<<___; |
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$SRL $tmp2,@X[1],@sigma0[0] # Xupdate($i) |
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$ADDU @X[0],@X[9] # +=X[i+9] |
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$SLL $tmp1,@X[1],`$SZ*8-@sigma0[2]` |
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$SRL $tmp0,@X[1],@sigma0[1] |
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xor $tmp2,$tmp1 |
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$SLL $tmp1,`@sigma0[2]-@sigma0[1]` |
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xor $tmp2,$tmp0 |
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$SRL $tmp0,@X[1],@sigma0[2] |
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xor $tmp2,$tmp1 |
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$SRL $tmp3,@X[14],@sigma1[0] |
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xor $tmp2,$tmp0 # sigma0(X[i+1]) |
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$SLL $tmp1,@X[14],`$SZ*8-@sigma1[2]` |
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$ADDU @X[0],$tmp2 |
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$SRL $tmp0,@X[14],@sigma1[1] |
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xor $tmp3,$tmp1 |
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$SLL $tmp1,`@sigma1[2]-@sigma1[1]` |
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xor $tmp3,$tmp0 |
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$SRL $tmp0,@X[14],@sigma1[2] |
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xor $tmp3,$tmp1 |
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xor $tmp3,$tmp0 # sigma1(X[i+14]) |
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$ADDU @X[0],$tmp3 |
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___ |
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&BODY_00_15(@_); |
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} |
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$FRAMESIZE=16*$SZ+16*$SZREG; |
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$SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? 0xc0fff008 : 0xc0ff0000; |
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$code.=<<___; |
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#ifdef OPENSSL_FIPSCANISTER |
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# include <openssl/fipssyms.h> |
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#endif |
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.text |
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.set noat |
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#if !defined(__vxworks) || defined(__pic__) |
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.option pic2 |
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#endif |
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.align 5 |
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.globl sha${label}_block_data_order |
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.ent sha${label}_block_data_order |
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sha${label}_block_data_order: |
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.frame $sp,$FRAMESIZE,$ra |
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.mask $SAVED_REGS_MASK,-$SZREG |
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.set noreorder |
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___ |
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$code.=<<___ if ($flavour =~ /o32/i); # o32 PIC-ification |
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.cpload $pf |
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___ |
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$code.=<<___; |
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$PTR_SUB $sp,$FRAMESIZE |
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$REG_S $ra,$FRAMESIZE-1*$SZREG($sp) |
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$REG_S $fp,$FRAMESIZE-2*$SZREG($sp) |
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$REG_S $s11,$FRAMESIZE-3*$SZREG($sp) |
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$REG_S $s10,$FRAMESIZE-4*$SZREG($sp) |
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$REG_S $s9,$FRAMESIZE-5*$SZREG($sp) |
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$REG_S $s8,$FRAMESIZE-6*$SZREG($sp) |
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$REG_S $s7,$FRAMESIZE-7*$SZREG($sp) |
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$REG_S $s6,$FRAMESIZE-8*$SZREG($sp) |
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$REG_S $s5,$FRAMESIZE-9*$SZREG($sp) |
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$REG_S $s4,$FRAMESIZE-10*$SZREG($sp) |
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___ |
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$code.=<<___ if ($flavour =~ /nubi/i); # optimize non-nubi prologue |
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$REG_S $s3,$FRAMESIZE-11*$SZREG($sp) |
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$REG_S $s2,$FRAMESIZE-12*$SZREG($sp) |
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$REG_S $s1,$FRAMESIZE-13*$SZREG($sp) |
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$REG_S $s0,$FRAMESIZE-14*$SZREG($sp) |
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$REG_S $gp,$FRAMESIZE-15*$SZREG($sp) |
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___ |
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$code.=<<___; |
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$PTR_SLL @X[15],$len,`log(16*$SZ)/log(2)` |
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___ |
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$code.=<<___ if ($flavour !~ /o32/i); # non-o32 PIC-ification |
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.cplocal $Ktbl |
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.cpsetup $pf,$zero,sha${label}_block_data_order |
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___ |
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$code.=<<___; |
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.set reorder |
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la $Ktbl,K${label} # PIC-ified 'load address' |
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$LD $A,0*$SZ($ctx) # load context |
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$LD $B,1*$SZ($ctx) |
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$LD $C,2*$SZ($ctx) |
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$LD $D,3*$SZ($ctx) |
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$LD $E,4*$SZ($ctx) |
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$LD $F,5*$SZ($ctx) |
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$LD $G,6*$SZ($ctx) |
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$LD $H,7*$SZ($ctx) |
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$PTR_ADD @X[15],$inp # pointer to the end of input |
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$REG_S @X[15],16*$SZ($sp) |
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b .Loop |
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.align 5 |
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.Loop: |
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${LD}l @X[0],$MSB($inp) |
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${LD}r @X[0],$LSB($inp) |
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___ |
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for ($i=0;$i<16;$i++) |
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{ &BODY_00_15($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); } |
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$code.=<<___; |
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b .L16_xx |
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.align 4 |
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.L16_xx: |
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___ |
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for (;$i<32;$i++) |
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{ &BODY_16_XX($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); } |
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$code.=<<___; |
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and @X[6],0xfff |
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li @X[7],$lastK |
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.set noreorder |
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bne @X[6],@X[7],.L16_xx |
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$PTR_ADD $Ktbl,16*$SZ # Ktbl+=16 |
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$REG_L @X[15],16*$SZ($sp) # restore pointer to the end of input |
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$LD @X[0],0*$SZ($ctx) |
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$LD @X[1],1*$SZ($ctx) |
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$LD @X[2],2*$SZ($ctx) |
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$PTR_ADD $inp,16*$SZ |
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$LD @X[3],3*$SZ($ctx) |
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$ADDU $A,@X[0] |
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$LD @X[4],4*$SZ($ctx) |
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$ADDU $B,@X[1] |
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$LD @X[5],5*$SZ($ctx) |
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$ADDU $C,@X[2] |
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$LD @X[6],6*$SZ($ctx) |
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$ADDU $D,@X[3] |
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$LD @X[7],7*$SZ($ctx) |
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$ADDU $E,@X[4] |
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$ST $A,0*$SZ($ctx) |
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$ADDU $F,@X[5] |
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$ST $B,1*$SZ($ctx) |
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$ADDU $G,@X[6] |
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$ST $C,2*$SZ($ctx) |
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$ADDU $H,@X[7] |
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$ST $D,3*$SZ($ctx) |
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$ST $E,4*$SZ($ctx) |
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$ST $F,5*$SZ($ctx) |
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$ST $G,6*$SZ($ctx) |
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$ST $H,7*$SZ($ctx) |
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bne $inp,@X[15],.Loop |
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$PTR_SUB $Ktbl,`($rounds-16)*$SZ` # rewind $Ktbl |
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$REG_L $ra,$FRAMESIZE-1*$SZREG($sp) |
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$REG_L $fp,$FRAMESIZE-2*$SZREG($sp) |
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$REG_L $s11,$FRAMESIZE-3*$SZREG($sp) |
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$REG_L $s10,$FRAMESIZE-4*$SZREG($sp) |
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$REG_L $s9,$FRAMESIZE-5*$SZREG($sp) |
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$REG_L $s8,$FRAMESIZE-6*$SZREG($sp) |
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$REG_L $s7,$FRAMESIZE-7*$SZREG($sp) |
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$REG_L $s6,$FRAMESIZE-8*$SZREG($sp) |
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$REG_L $s5,$FRAMESIZE-9*$SZREG($sp) |
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$REG_L $s4,$FRAMESIZE-10*$SZREG($sp) |
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___ |
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$code.=<<___ if ($flavour =~ /nubi/i); |
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$REG_L $s3,$FRAMESIZE-11*$SZREG($sp) |
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$REG_L $s2,$FRAMESIZE-12*$SZREG($sp) |
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$REG_L $s1,$FRAMESIZE-13*$SZREG($sp) |
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$REG_L $s0,$FRAMESIZE-14*$SZREG($sp) |
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$REG_L $gp,$FRAMESIZE-15*$SZREG($sp) |
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___ |
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$code.=<<___; |
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jr $ra |
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$PTR_ADD $sp,$FRAMESIZE |
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.end sha${label}_block_data_order |
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.rdata |
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.align 5 |
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K${label}: |
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___ |
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if ($SZ==4) { |
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$code.=<<___; |
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.word 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5 |
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.word 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5 |
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.word 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3 |
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.word 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174 |
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.word 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc |
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.word 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da |
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.word 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7 |
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.word 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967 |
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.word 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13 |
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.word 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85 |
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.word 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3 |
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.word 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070 |
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.word 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5 |
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.word 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3 |
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.word 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208 |
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.word 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 |
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___ |
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} else { |
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$code.=<<___; |
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.dword 0x428a2f98d728ae22, 0x7137449123ef65cd |
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.dword 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc |
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.dword 0x3956c25bf348b538, 0x59f111f1b605d019 |
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.dword 0x923f82a4af194f9b, 0xab1c5ed5da6d8118 |
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.dword 0xd807aa98a3030242, 0x12835b0145706fbe |
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.dword 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2 |
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.dword 0x72be5d74f27b896f, 0x80deb1fe3b1696b1 |
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.dword 0x9bdc06a725c71235, 0xc19bf174cf692694 |
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.dword 0xe49b69c19ef14ad2, 0xefbe4786384f25e3 |
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.dword 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65 |
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.dword 0x2de92c6f592b0275, 0x4a7484aa6ea6e483 |
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.dword 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5 |
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.dword 0x983e5152ee66dfab, 0xa831c66d2db43210 |
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.dword 0xb00327c898fb213f, 0xbf597fc7beef0ee4 |
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.dword 0xc6e00bf33da88fc2, 0xd5a79147930aa725 |
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.dword 0x06ca6351e003826f, 0x142929670a0e6e70 |
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.dword 0x27b70a8546d22ffc, 0x2e1b21385c26c926 |
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.dword 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df |
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.dword 0x650a73548baf63de, 0x766a0abb3c77b2a8 |
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.dword 0x81c2c92e47edaee6, 0x92722c851482353b |
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.dword 0xa2bfe8a14cf10364, 0xa81a664bbc423001 |
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.dword 0xc24b8b70d0f89791, 0xc76c51a30654be30 |
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.dword 0xd192e819d6ef5218, 0xd69906245565a910 |
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.dword 0xf40e35855771202a, 0x106aa07032bbd1b8 |
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.dword 0x19a4c116b8d2d0c8, 0x1e376c085141ab53 |
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.dword 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8 |
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.dword 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb |
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.dword 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3 |
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.dword 0x748f82ee5defb2fc, 0x78a5636f43172f60 |
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.dword 0x84c87814a1f0ab72, 0x8cc702081a6439ec |
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.dword 0x90befffa23631e28, 0xa4506cebde82bde9 |
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.dword 0xbef9a3f7b2c67915, 0xc67178f2e372532b |
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.dword 0xca273eceea26619c, 0xd186b8c721c0c207 |
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.dword 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178 |
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.dword 0x06f067aa72176fba, 0x0a637dc5a2c898a6 |
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.dword 0x113f9804bef90dae, 0x1b710b35131c471b |
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.dword 0x28db77f523047d84, 0x32caab7b40c72493 |
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.dword 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c |
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.dword 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a |
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.dword 0x5fcb6fab3ad6faec, 0x6c44198c4a475817 |
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___ |
|
} |
|
$code.=<<___; |
|
.asciiz "SHA${label} for MIPS, CRYPTOGAMS by <appro\@openssl.org>" |
|
.align 5 |
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|
|
___ |
|
|
|
$code =~ s/\`([^\`]*)\`/eval $1/gem; |
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print $code; |
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close STDOUT;
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