#!/usr/local/bin/perl # Perl c_rehash script, scan all files in a directory # and add symbolic links to their hash values. my $openssl; my $dir; if(defined $ENV{OPENSSL}) { $openssl = $ENV{OPENSSL}; } else { $openssl = "openssl"; $ENV{OPENSSL} = $openssl; } $ENV{PATH} .= ":$dir/bin"; if(! -x $openssl) { my $found = 0; foreach (split /:/, $ENV{PATH}) { if(-x "$_/$openssl") { $found = 1; last; } } if($found == 0) { print STDERR "c_rehash: rehashing skipped ('openssl' program not available)\n"; exit 0; } } if(@ARGV) { @dirlist = @ARGV; } elsif($ENV{SSL_CERT_DIR}) { @dirlist = split /:/, $ENV{SSL_CERT_DIR}; } else { $dirlist[0] = "$dir/certs"; } foreach (@dirlist) { if(-d $_ and -w $_) { hash_dir($_); } } sub hash_dir { my %hashlist; print "Doing $_[0]\n"; chdir $_[0]; opendir(DIR, "."); my @flist = readdir(DIR); # Delete any existing symbolic links foreach (grep {/^[\da-f]+\.r{0,1}\d+$/} @flist) { if(-l $_) { unlink $_; } } closedir DIR; FILE: foreach $fname (grep {/\.pem$/} @flist) { # Check to see if certificates and/or CRLs present. my ($cert, $crl) = check_file($fname); if(!$cert && !$crl) { print STDERR "WARNING: $fname does not contain a certificate or CRL: skipping\n"; next; } link_hash_cert($fname) if($cert); link_hash_crl($fname) if($crl); } } sub check_file { my ($is_cert, $is_crl) = (0,0); my $fname = $_[0]; open IN, $fname; while() { if(/^-----BEGIN (.*)-----/) { my $hdr = $1; if($hdr =~ /^(X509 |TRUSTED |)CERTIFICATE$/) { $is_cert = 1; last if($is_crl); } elsif($hdr eq "X509 CRL") { $is_crl = 1; last if($is_cert); } } } close IN; return ($is_cert, $is_crl); } # Link a certificate to its subject name hash value, each hash is of # the form . where n is an integer. If the hash value already exists # then we need to up the value of n, unless its a duplicate in which # case we skip the link. We check for duplicates by comparing the # certificate fingerprints sub link_hash_cert { my $fname = $_[0]; $fname =~ s/'/'\\''/g; my ($hash, $fprint) = `"$openssl" x509 -hash -fingerprint -noout -in '$fname'`; chomp $hash; chomp $fprint; $fprint =~ s/^.*=//; $fprint =~ tr/://d; my $suffix = 0; # Search for an unused hash filename while(exists $hashlist{"$hash.$suffix"}) { # Hash matches: if fingerprint matches its a duplicate cert if($hashlist{"$hash.$suffix"} eq $fprint) { print STDERR "WARNING: Skipping duplicate certificate $fname\n"; return; } $suffix++; } $hash .= ".$suffix"; print "$fname => $hash\n"; $symlink_exists=eval {symlink("",""); 1}; if ($symlink_exists) { symlink $fname, $hash; } else { system ("cp", $fname, $hash); } $hashlist{$hash} = $fprint; } # Same as above except for a CRL. CRL links are of the form .r sub link_hash_crl { my $fname = $_[0]; $fname =~ s/'/'\\''/g; my ($hash, $fprint) = `"$openssl" crl -hash -fingerprint -noout -in '$fname'`; chomp $hash; chomp $fprint; $fprint =~ s/^.*=//; $fprint =~ tr/://d; my $suffix = 0; # Search for an unused hash filename while(exists $hashlist{"$hash.r$suffix"}) { # Hash matches: if fingerprint matches its a duplicate cert if($hashlist{"$hash.r$suffix"} eq $fprint) { print STDERR "WARNING: Skipping duplicate CRL $fname\n"; return; } $suffix++; } $hash .= ".r$suffix"; print "$fname => $hash\n"; $symlink_exists=eval {symlink("",""); 1}; if ($symlink_exists) { symlink $fname, $hash; } else { system ("cp", $fname, $hash); } $hashlist{$hash} = $fprint; } '#n7'>7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109

#!/usr/local/bin/perl

push(@INC,"perlasm","../../perlasm");
require "x86asm.pl";
require "cbc.pl";

&asm_init($ARGV[0],"rc5-586.pl");

$RC5_MAX_ROUNDS=16;
$RC5_32_OFF=($RC5_MAX_ROUNDS+2)*4;
$A="edi";
$B="esi";
$S="ebp";
$tmp1="eax";
$r="ebx";
$tmpc="ecx";
$tmp4="edx";

&RC5_32_encrypt("RC5_32_encrypt",1);
&RC5_32_encrypt("RC5_32_decrypt",0);
&cbc("RC5_32_cbc_encrypt","RC5_32_encrypt","RC5_32_decrypt",0,4,5,3,-1,-1);
&asm_finish();

sub RC5_32_encrypt
	{
	local($name,$enc)=@_;

	&function_begin_B($name,"");

	&comment("");

	&push("ebp");
	 &push("esi");
	&push("edi");
	 &mov($tmp4,&wparam(0));
	&mov($S,&wparam(1));

	&comment("Load the 2 words");
	 &mov($A,&DWP(0,$tmp4,"",0));
	&mov($B,&DWP(4,$tmp4,"",0));

	&push($r);
	 &mov($r,	&DWP(0,$S,"",0));

	# encrypting part

	if ($enc)
		{
		 &add($A,	&DWP(4+0,$S,"",0));
		&add($B,	&DWP(4+4,$S,"",0));

		for ($i=0; $i<$RC5_MAX_ROUNDS; $i++)
			{
			 &xor($A,	$B);
			&mov($tmp1,	&DWP(12+$i*8,$S,"",0));
			 &mov($tmpc,	$B);
			&rotl($A,	&LB("ecx"));
			&add($A,	$tmp1);

			 &xor($B,	$A);
			&mov($tmp1,	&DWP(16+$i*8,$S,"",0));
			 &mov($tmpc,	$A);
			&rotl($B,	&LB("ecx"));
			&add($B,	$tmp1);
			if (($i == 7) || ($i == 11))
				{
			 &cmp($r,	$i+1);
			&je(&label("rc5_exit"));
				}
			}
		}
	else
		{
		 &cmp($r,	12);
		&je(&label("rc5_dec_12"));
		 &cmp($r,	8);
		&je(&label("rc5_dec_8"));
		for ($i=$RC5_MAX_ROUNDS; $i > 0; $i--)
			{
			&set_label("rc5_dec_$i") if ($i == 12) || ($i == 8);
			 &mov($tmp1,	&DWP($i*8+8,$S,"",0));
			&sub($B,	$tmp1);
			 &mov($tmpc,	$A);
			&rotr($B,	&LB("ecx"));
			&xor($B,	$A);

			 &mov($tmp1,	&DWP($i*8+4,$S,"",0));
			&sub($A,	$tmp1);
			 &mov($tmpc,	$B);
			&rotr($A,	&LB("ecx"));
			&xor($A,	$B);
			}
		 &sub($B,	&DWP(4+4,$S,"",0));
		&sub($A,	&DWP(4+0,$S,"",0));
		}

	&set_label("rc5_exit");
	 &mov(&DWP(0,$tmp4,"",0),$A);
	&mov(&DWP(4,$tmp4,"",0),$B);

	 &pop("ebx");
	&pop("edi");
	 &pop("esi");
	&pop("ebp");
	 &ret();
	&function_end_B($name);
	}