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DES.pm
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MD4.pm
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Editing: DES.pm
#!/usr/local/bin/perl # # This is an implementation of part of the DES specification. According # to the code this is ported from, this code does NOT enable 2-way # encryption and is, hence, not a cypher and does not appear to come # under any export restrictions on such. # package Authen::NTLM::DES; use vars qw($VERSION @ISA @EXPORT); require Exporter; $VERSION = "1.02"; @ISA = qw(Exporter); @EXPORT = qw(E_P16 E_P24); my ($loop, $loop2); $loop = 0; $loop2 = 0; my $perm1 = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4]; my $perm2 = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32]; my $perm3 = [58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7]; my $perm4 = [32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1]; my $perm5 = [16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25]; my $perm6 = [40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, 38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, 36, 4, 44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, 34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25]; my $sc = [1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1]; my $sbox = [ [ [14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7], [0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8], [4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0], [15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13] ], [ [15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10], [3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5], [0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15], [13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9] ], [ [10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8], [13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1], [13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7], [1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12] ], [ [7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15], [13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9], [10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4], [3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14] ], [ [2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9], [14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6], [4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14], [11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3] ], [ [12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11], [10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8], [9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6], [4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13] ], [ [4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1], [13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6], [1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2], [6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12] ], [ [13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7], [1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2], [7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8], [2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11] ] ]; sub E_P16 { my ($p14) = @_; my $sp8 = [0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25]; my $p7 = substr($p14, 0, 7); my $p16 = smbhash($sp8, $p7); $p7 = substr($p14, 7, 7); $p16 .= smbhash($sp8, $p7); return $p16; } sub E_P24 { my ($p21, $c8_str) = @_; my @c8 = map {ord($_)} split(//, $c8_str); my $p24 = smbhash(\@c8, substr($p21, 0, 7)); $p24 .= smbhash(\@c8, substr($p21, 7, 7)); $p24 .= smbhash(\@c8, substr($p21, 14, 7)); } sub permute { my ($out, $in, $p, $n) = @_; my $i; foreach $i (0..($n-1)) { $out->[$i] = $in->[$p->[$i]-1]; } } sub lshift { my ($d, $count, $n) = @_; my (@out, $i); foreach $i (0..($n-1)) { $out[$i] = $d->[($i+$count)%$n]; } foreach $i (0..($n-1)) { $d->[$i] = $out[$i]; } } sub xor { my ($out, $in1, $in2, $n) = @_; my $i; foreach $i (0..($n-1)) { $out->[$i] = $in1->[$i]^$in2->[$i]; } } sub dohash { my ($out, $in, $key) = @_; my ($i, $j, $k, @pk1, @c, @d, @cd, @ki, @pd1, @l, @r, @rl); &permute(\@pk1, $key, $perm1, 56); foreach $i (0..27) { $c[$i] = $pk1[$i]; $d[$i] = $pk1[$i+28]; } foreach $i (0..15) { my @array; &lshift(\@c, $sc->[$i], 28); &lshift(\@d, $sc->[$i], 28); @cd = (@c, @d); &permute(\@array, \@cd, $perm2, 48); $ki[$i] = \@array; } &permute(\@pd1, $in, $perm3, 64); foreach $j (0..31) { $l[$j] = $pd1[$j]; $r[$j] = $pd1[$j+32]; } foreach $i (0..15) { local (@er, @erk, @b, @cb, @pcb, @r2); permute(\@er, \@r, $perm4, 48); &xor(\@erk, \@er, $ki[$i], 48); foreach $j (0..7) { foreach $k (0..5) { $b[$j][$k] = $erk[$j*6+$k]; } } foreach $j (0..7) { local ($m, $n); $m = ($b[$j][0]<<1) | $b[$j][5]; $n = ($b[$j][1]<<3) | ($b[$j][2]<<2) | ($b[$j][3]<<1) | $b[$j][4]; foreach $k (0..3) { $b[$j][$k] = ($sbox->[$j][$m][$n] & (1<<(3-$k)))? 1: 0; } } foreach $j (0..7) { foreach $k (0..3) { $cb[$j*4+$k] = $b[$j][$k]; } } &permute(\@pcb, \@cb, $perm5, 32); &xor(\@r2, \@l, \@pcb, 32); foreach $j (0..31) { $l[$j] = $r[$j]; $r[$j] = $r2[$j]; } } @rl = (@r, @l); &permute($out, \@rl, $perm6, 64); } sub str_to_key { my ($str) = @_; my $i; my @key; my $out; my @str = map {ord($_)} split(//, $str); $key[0] = $str[0]>>1; $key[1] = (($str[0]&0x01)<<6) | ($str[1]>>2); $key[2] = (($str[1]&0x03)<<5) | ($str[2]>>3); $key[3] = (($str[2]&0x07)<<4) | ($str[3]>>4); $key[4] = (($str[3]&0x0f)<<3) | ($str[4]>>5); $key[5] = (($str[4]&0x1f)<<2) | ($str[5]>>6); $key[6] = (($str[5]&0x3f)<<1) | ($str[6]>>7); $key[7] = $str[6]&0x7f; foreach $i (0..7) { $key[$i] = 0xff&($key[$i]<<1); } return \@key; } sub smbhash { my ($in, $key) = @_; my $key2 = &str_to_key($key); my ($i, $div, $mod, @in, @outb, @inb, @keyb, @out); foreach $i (0..63) { $div = int($i/8); $mod = $i%8; $inb[$i] = ($in->[$div] & (1<<(7-($mod))))? 1: 0; $keyb[$i] = ($key2->[$div] & (1<<(7-($mod))))? 1: 0; $outb[$i] = 0; } &dohash(\@outb, \@inb, \@keyb); foreach $i (0..7) { $out[$i] = 0; } foreach $i (0..63) { $out[int($i/8)] |= (1<<(7-($i%8))) if ($outb[$i]); } my $out = pack("C8", @out); return $out; } 1;
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