Commit fc799936 authored by Ulf Möller's avatar Ulf Möller
Browse files

DES in Perl was incomplete and not very useful

parent 7043a4fc

crypto/des/PC1

deleted100644 → 0
+0 −28
Original line number Diff line number Diff line 
#!/usr/local/bin/perl



@PC1=(  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,

	"-","-","-","-",

	);



foreach (@PC1)

	{

	if ($_ ne "-")

		{

		$_--;

		$_=int($_/8)*8+7-($_%8);

		printf "%2d  ",$_;

		}

	else

		{ print "--  "; }

	print "\n" if (((++$i) % 8) == 0);

	print "\n" if ((($i) % 32) == 0);

	}

crypto/des/PC2

deleted100644 → 0
+0 −57
Original line number Diff line number Diff line 
#!/usr/local/bin/perl



@PC2_C=(14,17,11,24, 1, 5,

	 3,28,15, 6,21,10,

	23,19,12, 4,26, 8,

	16, 7,27,20,13, 2,

	);



@PC2_D=(41,52,31,37,47,55,

	30,40,51,45,33,48,

	44,49,39,56,34,53,

	46,42,50,36,29,32,

	);



foreach (@PC2_C) {

	if ($_ ne "-")

		{

		$_--;

		printf "%2d  ",$_; }

	else { print "--  "; }

	$C{$_}=1;

	print "\n" if (((++$i) % 8) == 0);

	}

$i=0;

print "\n";

foreach (@PC2_D) {

	if ($_ ne "-")

		{

		$_-=29;

		printf "%2d  ",$_; }

	else { print "--  "; }

	$D{$_}=1;

	print "\n" if (((++$i) % 8) == 0); }



print "\n";

foreach $i (0 .. 27)

	{

	$_=$C{$i};

	if ($_ ne "-") {printf "%2d ",$_;}

	else { print "--  "; }

	print "\n" if (((++$i) % 8) == 0);

	}

print "\n";



print "\n";

foreach $i (0 .. 27)

	{

	$_=$D{$i};

	if ($_ ne "-") {printf "%2d  ",$_;}

	else { print "--  "; }

	print "\n" if (((++$i) % 8) == 0);

	}

print "\n";

sub numsort

	{

	$a-$b;

	}

crypto/des/des.pl

deleted100644 → 0
+0 −552
Original line number Diff line number Diff line 
#!/usr/local/bin/perl

# des.pl - eric young 22/11/1991 eay@cryptsoft.com

#

# Copyright (C) 1993 Eric Young

#

# 11 April 1996 - patched to circumvent Perl 5 (through 5.002) problem

#                 with sign-extension on right shift operations.

#                 Ed Kubaitis - ejk@uiuc.edu

#

# eay - 92/08/31 - I think I have fixed all problems for 64bit

# versions of perl but I could be wrong since I have not tested it yet :-).

#

# This is an implementation of DES in perl.

# The two routines (des_set_key and des_ecb_encrypt)

# take 8 byte objects as arguments.

#

# des_set_key takes an 8 byte string as a key and returns a key schedule

# for use in calls to des_ecb_encrypt.

# des_ecb_encrypt takes three arguments, the first is a key schedule

# (make sure to pass it by reference with the *), the second is 1

# to encrypt, 0 to decrypt.  The third argument is an 8 byte object

# to encrypt.  The function returns an 8 byte object that has been

# DES encrypted.

#

# example:

# require 'des.pl'

#

# $key =pack("C8",0x12,0x23,0x45,0x67,0x89,0xab,0xcd,0xef);

# @ks=  &des_set_key($key);

#

# $outbytes= &des_ecb_encrypt(*ks,1,$data);

# @enc =unpack("C8",$outbytes);

#

                 

package des;



eval("use integer;") if (int($]) > 4);



# The following 8 arrays are used in des_set_key

@skb0=(

# for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 

0x00000000,0x00000010,0x20000000,0x20000010,

0x00010000,0x00010010,0x20010000,0x20010010,

0x00000800,0x00000810,0x20000800,0x20000810,

0x00010800,0x00010810,0x20010800,0x20010810,

0x00000020,0x00000030,0x20000020,0x20000030,

0x00010020,0x00010030,0x20010020,0x20010030,

0x00000820,0x00000830,0x20000820,0x20000830,

0x00010820,0x00010830,0x20010820,0x20010830,

0x00080000,0x00080010,0x20080000,0x20080010,

0x00090000,0x00090010,0x20090000,0x20090010,

0x00080800,0x00080810,0x20080800,0x20080810,

0x00090800,0x00090810,0x20090800,0x20090810,

0x00080020,0x00080030,0x20080020,0x20080030,

0x00090020,0x00090030,0x20090020,0x20090030,

0x00080820,0x00080830,0x20080820,0x20080830,

0x00090820,0x00090830,0x20090820,0x20090830,

);

@skb1=(

# for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 

0x00000000,0x02000000,0x00002000,0x02002000,

0x00200000,0x02200000,0x00202000,0x02202000,

0x00000004,0x02000004,0x00002004,0x02002004,

0x00200004,0x02200004,0x00202004,0x02202004,

0x00000400,0x02000400,0x00002400,0x02002400,

0x00200400,0x02200400,0x00202400,0x02202400,

0x00000404,0x02000404,0x00002404,0x02002404,

0x00200404,0x02200404,0x00202404,0x02202404,

0x10000000,0x12000000,0x10002000,0x12002000,

0x10200000,0x12200000,0x10202000,0x12202000,

0x10000004,0x12000004,0x10002004,0x12002004,

0x10200004,0x12200004,0x10202004,0x12202004,

0x10000400,0x12000400,0x10002400,0x12002400,

0x10200400,0x12200400,0x10202400,0x12202400,

0x10000404,0x12000404,0x10002404,0x12002404,

0x10200404,0x12200404,0x10202404,0x12202404,

);

@skb2=(

# for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 

0x00000000,0x00000001,0x00040000,0x00040001,

0x01000000,0x01000001,0x01040000,0x01040001,

0x00000002,0x00000003,0x00040002,0x00040003,

0x01000002,0x01000003,0x01040002,0x01040003,

0x00000200,0x00000201,0x00040200,0x00040201,

0x01000200,0x01000201,0x01040200,0x01040201,

0x00000202,0x00000203,0x00040202,0x00040203,

0x01000202,0x01000203,0x01040202,0x01040203,

0x08000000,0x08000001,0x08040000,0x08040001,

0x09000000,0x09000001,0x09040000,0x09040001,

0x08000002,0x08000003,0x08040002,0x08040003,

0x09000002,0x09000003,0x09040002,0x09040003,

0x08000200,0x08000201,0x08040200,0x08040201,

0x09000200,0x09000201,0x09040200,0x09040201,

0x08000202,0x08000203,0x08040202,0x08040203,

0x09000202,0x09000203,0x09040202,0x09040203,

);

@skb3=(

# for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 

0x00000000,0x00100000,0x00000100,0x00100100,

0x00000008,0x00100008,0x00000108,0x00100108,

0x00001000,0x00101000,0x00001100,0x00101100,

0x00001008,0x00101008,0x00001108,0x00101108,

0x04000000,0x04100000,0x04000100,0x04100100,

0x04000008,0x04100008,0x04000108,0x04100108,

0x04001000,0x04101000,0x04001100,0x04101100,

0x04001008,0x04101008,0x04001108,0x04101108,

0x00020000,0x00120000,0x00020100,0x00120100,

0x00020008,0x00120008,0x00020108,0x00120108,

0x00021000,0x00121000,0x00021100,0x00121100,

0x00021008,0x00121008,0x00021108,0x00121108,

0x04020000,0x04120000,0x04020100,0x04120100,

0x04020008,0x04120008,0x04020108,0x04120108,

0x04021000,0x04121000,0x04021100,0x04121100,

0x04021008,0x04121008,0x04021108,0x04121108,

);

@skb4=(

# for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 

0x00000000,0x10000000,0x00010000,0x10010000,

0x00000004,0x10000004,0x00010004,0x10010004,

0x20000000,0x30000000,0x20010000,0x30010000,

0x20000004,0x30000004,0x20010004,0x30010004,

0x00100000,0x10100000,0x00110000,0x10110000,

0x00100004,0x10100004,0x00110004,0x10110004,

0x20100000,0x30100000,0x20110000,0x30110000,

0x20100004,0x30100004,0x20110004,0x30110004,

0x00001000,0x10001000,0x00011000,0x10011000,

0x00001004,0x10001004,0x00011004,0x10011004,

0x20001000,0x30001000,0x20011000,0x30011000,

0x20001004,0x30001004,0x20011004,0x30011004,

0x00101000,0x10101000,0x00111000,0x10111000,

0x00101004,0x10101004,0x00111004,0x10111004,

0x20101000,0x30101000,0x20111000,0x30111000,

0x20101004,0x30101004,0x20111004,0x30111004,

);

@skb5=(

# for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 

0x00000000,0x08000000,0x00000008,0x08000008,

0x00000400,0x08000400,0x00000408,0x08000408,

0x00020000,0x08020000,0x00020008,0x08020008,

0x00020400,0x08020400,0x00020408,0x08020408,

0x00000001,0x08000001,0x00000009,0x08000009,

0x00000401,0x08000401,0x00000409,0x08000409,

0x00020001,0x08020001,0x00020009,0x08020009,

0x00020401,0x08020401,0x00020409,0x08020409,

0x02000000,0x0A000000,0x02000008,0x0A000008,

0x02000400,0x0A000400,0x02000408,0x0A000408,

0x02020000,0x0A020000,0x02020008,0x0A020008,

0x02020400,0x0A020400,0x02020408,0x0A020408,

0x02000001,0x0A000001,0x02000009,0x0A000009,

0x02000401,0x0A000401,0x02000409,0x0A000409,

0x02020001,0x0A020001,0x02020009,0x0A020009,

0x02020401,0x0A020401,0x02020409,0x0A020409,

);

@skb6=(

# for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 

0x00000000,0x00000100,0x00080000,0x00080100,

0x01000000,0x01000100,0x01080000,0x01080100,

0x00000010,0x00000110,0x00080010,0x00080110,

0x01000010,0x01000110,0x01080010,0x01080110,

0x00200000,0x00200100,0x00280000,0x00280100,

0x01200000,0x01200100,0x01280000,0x01280100,

0x00200010,0x00200110,0x00280010,0x00280110,

0x01200010,0x01200110,0x01280010,0x01280110,

0x00000200,0x00000300,0x00080200,0x00080300,

0x01000200,0x01000300,0x01080200,0x01080300,

0x00000210,0x00000310,0x00080210,0x00080310,

0x01000210,0x01000310,0x01080210,0x01080310,

0x00200200,0x00200300,0x00280200,0x00280300,

0x01200200,0x01200300,0x01280200,0x01280300,

0x00200210,0x00200310,0x00280210,0x00280310,

0x01200210,0x01200310,0x01280210,0x01280310,

);

@skb7=(

# for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 

0x00000000,0x04000000,0x00040000,0x04040000,

0x00000002,0x04000002,0x00040002,0x04040002,

0x00002000,0x04002000,0x00042000,0x04042000,

0x00002002,0x04002002,0x00042002,0x04042002,

0x00000020,0x04000020,0x00040020,0x04040020,

0x00000022,0x04000022,0x00040022,0x04040022,

0x00002020,0x04002020,0x00042020,0x04042020,

0x00002022,0x04002022,0x00042022,0x04042022,

0x00000800,0x04000800,0x00040800,0x04040800,

0x00000802,0x04000802,0x00040802,0x04040802,

0x00002800,0x04002800,0x00042800,0x04042800,

0x00002802,0x04002802,0x00042802,0x04042802,

0x00000820,0x04000820,0x00040820,0x04040820,

0x00000822,0x04000822,0x00040822,0x04040822,

0x00002820,0x04002820,0x00042820,0x04042820,

0x00002822,0x04002822,0x00042822,0x04042822,

);



@shifts2=(0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0);



# used in ecb_encrypt

@SP0=(

0x00410100, 0x00010000, 0x40400000, 0x40410100,

0x00400000, 0x40010100, 0x40010000, 0x40400000,

0x40010100, 0x00410100, 0x00410000, 0x40000100,

0x40400100, 0x00400000, 0x00000000, 0x40010000,

0x00010000, 0x40000000, 0x00400100, 0x00010100,

0x40410100, 0x00410000, 0x40000100, 0x00400100,

0x40000000, 0x00000100, 0x00010100, 0x40410000,

0x00000100, 0x40400100, 0x40410000, 0x00000000,

0x00000000, 0x40410100, 0x00400100, 0x40010000,

0x00410100, 0x00010000, 0x40000100, 0x00400100,

0x40410000, 0x00000100, 0x00010100, 0x40400000,

0x40010100, 0x40000000, 0x40400000, 0x00410000,

0x40410100, 0x00010100, 0x00410000, 0x40400100,

0x00400000, 0x40000100, 0x40010000, 0x00000000,

0x00010000, 0x00400000, 0x40400100, 0x00410100,

0x40000000, 0x40410000, 0x00000100, 0x40010100,

);

@SP1=(

0x08021002, 0x00000000, 0x00021000, 0x08020000,

0x08000002, 0x00001002, 0x08001000, 0x00021000,

0x00001000, 0x08020002, 0x00000002, 0x08001000,

0x00020002, 0x08021000, 0x08020000, 0x00000002,

0x00020000, 0x08001002, 0x08020002, 0x00001000,

0x00021002, 0x08000000, 0x00000000, 0x00020002,

0x08001002, 0x00021002, 0x08021000, 0x08000002,

0x08000000, 0x00020000, 0x00001002, 0x08021002,

0x00020002, 0x08021000, 0x08001000, 0x00021002,

0x08021002, 0x00020002, 0x08000002, 0x00000000,

0x08000000, 0x00001002, 0x00020000, 0x08020002,

0x00001000, 0x08000000, 0x00021002, 0x08001002,

0x08021000, 0x00001000, 0x00000000, 0x08000002,

0x00000002, 0x08021002, 0x00021000, 0x08020000,

0x08020002, 0x00020000, 0x00001002, 0x08001000,

0x08001002, 0x00000002, 0x08020000, 0x00021000,

);

@SP2=(

0x20800000, 0x00808020, 0x00000020, 0x20800020,

0x20008000, 0x00800000, 0x20800020, 0x00008020,

0x00800020, 0x00008000, 0x00808000, 0x20000000,

0x20808020, 0x20000020, 0x20000000, 0x20808000,

0x00000000, 0x20008000, 0x00808020, 0x00000020,

0x20000020, 0x20808020, 0x00008000, 0x20800000,

0x20808000, 0x00800020, 0x20008020, 0x00808000,

0x00008020, 0x00000000, 0x00800000, 0x20008020,

0x00808020, 0x00000020, 0x20000000, 0x00008000,

0x20000020, 0x20008000, 0x00808000, 0x20800020,

0x00000000, 0x00808020, 0x00008020, 0x20808000,

0x20008000, 0x00800000, 0x20808020, 0x20000000,

0x20008020, 0x20800000, 0x00800000, 0x20808020,

0x00008000, 0x00800020, 0x20800020, 0x00008020,

0x00800020, 0x00000000, 0x20808000, 0x20000020,

0x20800000, 0x20008020, 0x00000020, 0x00808000,

);

@SP3=(

0x00080201, 0x02000200, 0x00000001, 0x02080201,

0x00000000, 0x02080000, 0x02000201, 0x00080001,

0x02080200, 0x02000001, 0x02000000, 0x00000201,

0x02000001, 0x00080201, 0x00080000, 0x02000000,

0x02080001, 0x00080200, 0x00000200, 0x00000001,

0x00080200, 0x02000201, 0x02080000, 0x00000200,

0x00000201, 0x00000000, 0x00080001, 0x02080200,

0x02000200, 0x02080001, 0x02080201, 0x00080000,

0x02080001, 0x00000201, 0x00080000, 0x02000001,

0x00080200, 0x02000200, 0x00000001, 0x02080000,

0x02000201, 0x00000000, 0x00000200, 0x00080001,

0x00000000, 0x02080001, 0x02080200, 0x00000200,

0x02000000, 0x02080201, 0x00080201, 0x00080000,

0x02080201, 0x00000001, 0x02000200, 0x00080201,

0x00080001, 0x00080200, 0x02080000, 0x02000201,

0x00000201, 0x02000000, 0x02000001, 0x02080200,

);

@SP4=(

0x01000000, 0x00002000, 0x00000080, 0x01002084,

0x01002004, 0x01000080, 0x00002084, 0x01002000,

0x00002000, 0x00000004, 0x01000004, 0x00002080,

0x01000084, 0x01002004, 0x01002080, 0x00000000,

0x00002080, 0x01000000, 0x00002004, 0x00000084,

0x01000080, 0x00002084, 0x00000000, 0x01000004,

0x00000004, 0x01000084, 0x01002084, 0x00002004,

0x01002000, 0x00000080, 0x00000084, 0x01002080,

0x01002080, 0x01000084, 0x00002004, 0x01002000,

0x00002000, 0x00000004, 0x01000004, 0x01000080,

0x01000000, 0x00002080, 0x01002084, 0x00000000,

0x00002084, 0x01000000, 0x00000080, 0x00002004,

0x01000084, 0x00000080, 0x00000000, 0x01002084,

0x01002004, 0x01002080, 0x00000084, 0x00002000,

0x00002080, 0x01002004, 0x01000080, 0x00000084,

0x00000004, 0x00002084, 0x01002000, 0x01000004,

);

@SP5=(

0x10000008, 0x00040008, 0x00000000, 0x10040400,

0x00040008, 0x00000400, 0x10000408, 0x00040000,

0x00000408, 0x10040408, 0x00040400, 0x10000000,

0x10000400, 0x10000008, 0x10040000, 0x00040408,

0x00040000, 0x10000408, 0x10040008, 0x00000000,

0x00000400, 0x00000008, 0x10040400, 0x10040008,

0x10040408, 0x10040000, 0x10000000, 0x00000408,

0x00000008, 0x00040400, 0x00040408, 0x10000400,

0x00000408, 0x10000000, 0x10000400, 0x00040408,

0x10040400, 0x00040008, 0x00000000, 0x10000400,

0x10000000, 0x00000400, 0x10040008, 0x00040000,

0x00040008, 0x10040408, 0x00040400, 0x00000008,

0x10040408, 0x00040400, 0x00040000, 0x10000408,

0x10000008, 0x10040000, 0x00040408, 0x00000000,

0x00000400, 0x10000008, 0x10000408, 0x10040400,

0x10040000, 0x00000408, 0x00000008, 0x10040008,

);

@SP6=(

0x00000800, 0x00000040, 0x00200040, 0x80200000,

0x80200840, 0x80000800, 0x00000840, 0x00000000,

0x00200000, 0x80200040, 0x80000040, 0x00200800,

0x80000000, 0x00200840, 0x00200800, 0x80000040,

0x80200040, 0x00000800, 0x80000800, 0x80200840,

0x00000000, 0x00200040, 0x80200000, 0x00000840,

0x80200800, 0x80000840, 0x00200840, 0x80000000,

0x80000840, 0x80200800, 0x00000040, 0x00200000,

0x80000840, 0x00200800, 0x80200800, 0x80000040,

0x00000800, 0x00000040, 0x00200000, 0x80200800,

0x80200040, 0x80000840, 0x00000840, 0x00000000,

0x00000040, 0x80200000, 0x80000000, 0x00200040,

0x00000000, 0x80200040, 0x00200040, 0x00000840,

0x80000040, 0x00000800, 0x80200840, 0x00200000,

0x00200840, 0x80000000, 0x80000800, 0x80200840,

0x80200000, 0x00200840, 0x00200800, 0x80000800,

);

@SP7=(

0x04100010, 0x04104000, 0x00004010, 0x00000000,

0x04004000, 0x00100010, 0x04100000, 0x04104010,

0x00000010, 0x04000000, 0x00104000, 0x00004010,

0x00104010, 0x04004010, 0x04000010, 0x04100000,

0x00004000, 0x00104010, 0x00100010, 0x04004000,

0x04104010, 0x04000010, 0x00000000, 0x00104000,

0x04000000, 0x00100000, 0x04004010, 0x04100010,

0x00100000, 0x00004000, 0x04104000, 0x00000010,

0x00100000, 0x00004000, 0x04000010, 0x04104010,

0x00004010, 0x04000000, 0x00000000, 0x00104000,

0x04100010, 0x04004010, 0x04004000, 0x00100010,

0x04104000, 0x00000010, 0x00100010, 0x04004000,

0x04104010, 0x00100000, 0x04100000, 0x04000010,

0x00104000, 0x00004010, 0x04004010, 0x04100000,

0x00000010, 0x04104000, 0x00104010, 0x00000000,

0x04000000, 0x04100010, 0x00004000, 0x00104010,

);



sub main'des_set_key

	{

	local($param)=@_;

	local(@key);

	local($c,$d,$i,$s,$t);

	local(@ks)=();



	# Get the bytes in the order we want.

	@key=unpack("C8",$param);



	$c=	($key[0]    )|

		($key[1]<< 8)|

		($key[2]<<16)|

		($key[3]<<24);

	$d=	($key[4]    )|

		($key[5]<< 8)|

		($key[6]<<16)|

		($key[7]<<24);



	&doPC1(*c,*d);



	for $i (@shifts2)

		{

		if ($i)

			{

			$c=($c>>2)|($c<<26);

			$d=($d>>2)|($d<<26);

			}

		else

			{

			$c=($c>>1)|($c<<27);

			$d=($d>>1)|($d<<27);

			}

		$c&=0x0fffffff;

		$d&=0x0fffffff;

		$s=	$skb0[ ($c    )&0x3f                 ]|

			$skb1[(($c>> 6)&0x03)|(($c>> 7)&0x3c)]|

			$skb2[(($c>>13)&0x0f)|(($c>>14)&0x30)]|

			$skb3[(($c>>20)&0x01)|(($c>>21)&0x06) |

					     (($c>>22)&0x38)];

		$t=     $skb4[ ($d    )&0x3f                ]|

			$skb5[(($d>> 7)&0x03)|(($d>> 8)&0x3c)]|

			$skb6[ ($d>>15)&0x3f                 ]|

			$skb7[(($d>>21)&0x0f)|(($d>>22)&0x30)];

		push(@ks,(($t<<16)|($s&0x0000ffff))&0xffffffff);

		$s=      (($s>>16)&0x0000ffff)|($t&0xffff0000) ;

		push(@ks,(($s<<4)|(($s>>28)&0xf))&0xffffffff);

		}

	@ks;

	}



sub doPC1

	{

	local(*a,*b)=@_;

	local($t);



	$t=(($b>>4)^$a)&0x0f0f0f0f;

	$b^=($t<<4); $a^=$t;

	# do $a first 

	$t=(($a<<18)^$a)&0xcccc0000;

	$a=$a^$t^(($t>>18)&0x00003fff);

	$t=(($a<<17)^$a)&0xaaaa0000;

	$a=$a^$t^(($t>>17)&0x00007fff);

	$t=(($a<< 8)^$a)&0x00ff0000;

	$a=$a^$t^(($t>> 8)&0x00ffffff);

	$t=(($a<<17)^$a)&0xaaaa0000;

	$a=$a^$t^(($t>>17)&0x00007fff);



	# now do $b

	$t=(($b<<24)^$b)&0xff000000;

	$b=$b^$t^(($t>>24)&0x000000ff);

	$t=(($b<< 8)^$b)&0x00ff0000;

	$b=$b^$t^(($t>> 8)&0x00ffffff);

	$t=(($b<<14)^$b)&0x33330000;

	$b=$b^$t^(($t>>14)&0x0003ffff);

	$b=(($b&0x00aa00aa)<<7)|(($b&0x55005500)>>7)|($b&0xaa55aa55);

	$b=(($b>>8)&0x00ffffff)|((($a&0xf0000000)>>4)&0x0fffffff);

	$a&=0x0fffffff;

	}



sub doIP

	{

	local(*a,*b)=@_;

	local($t);



	$t=(($b>> 4)^$a)&0x0f0f0f0f;

	$b^=($t<< 4); $a^=$t;

	$t=(($a>>16)^$b)&0x0000ffff;

	$a^=($t<<16); $b^=$t;

	$t=(($b>> 2)^$a)&0x33333333;

	$b^=($t<< 2); $a^=$t;

	$t=(($a>> 8)^$b)&0x00ff00ff;

	$a^=($t<< 8); $b^=$t;

	$t=(($b>> 1)^$a)&0x55555555;

	$b^=($t<< 1); $a^=$t;

	$t=$a;

	$a=$b&0xffffffff;

	$b=$t&0xffffffff;

	}



sub doFP

	{

	local(*a,*b)=@_;

	local($t);



	$t=(($b>> 1)^$a)&0x55555555;

	$b^=($t<< 1); $a^=$t;

	$t=(($a>> 8)^$b)&0x00ff00ff;

	$a^=($t<< 8); $b^=$t;

	$t=(($b>> 2)^$a)&0x33333333;

	$b^=($t<< 2); $a^=$t;

	$t=(($a>>16)^$b)&0x0000ffff;

	$a^=($t<<16); $b^=$t;

	$t=(($b>> 4)^$a)&0x0f0f0f0f;

	$b^=($t<< 4); $a^=$t;

	$a&=0xffffffff;

	$b&=0xffffffff;

	}



sub main'des_ecb_encrypt

	{

	local(*ks,$encrypt,$in)=@_;

	local($l,$r,$i,$t,$u,@input);

	

	@input=unpack("C8",$in);

	# Get the bytes in the order we want.

	$l=	($input[0]    )|

		($input[1]<< 8)|

		($input[2]<<16)|

		($input[3]<<24);

	$r=	($input[4]    )|

		($input[5]<< 8)|

		($input[6]<<16)|

		($input[7]<<24);



	$l&=0xffffffff;

	$r&=0xffffffff;

	&doIP(*l,*r);

	if ($encrypt)

		{

		for ($i=0; $i<32; $i+=4)

			{

			$t=((($r&0x7fffffff)<<1)|(($r>>31)&0x00000001));

			$u=$t^$ks[$i  ];

			$t=$t^$ks[$i+1];

			$t2=(($t&0x0000000f)<<28);



			$t=((($t>>4)&0x0fffffff)|(($t&0x0000000f)<<28));

			$l^=	$SP1[ $t     &0x3f]|

				$SP3[($t>> 8)&0x3f]|

				$SP5[($t>>16)&0x3f]|

				$SP7[($t>>24)&0x3f]|

				$SP0[ $u     &0x3f]|

				$SP2[($u>> 8)&0x3f]|

				$SP4[($u>>16)&0x3f]|

				$SP6[($u>>24)&0x3f];



			$t=(($l<<1)|(($l>>31)&0x1))&0xffffffff;

			$u=$t^$ks[$i+2];

			$t=$t^$ks[$i+3];

			$t=((($t>>4)&0x0fffffff)|($t<<28))&0xffffffff;

			$r^=	$SP1[ $t     &0x3f]|

				$SP3[($t>> 8)&0x3f]|

				$SP5[($t>>16)&0x3f]|

				$SP7[($t>>24)&0x3f]|

				$SP0[ $u     &0x3f]|

				$SP2[($u>> 8)&0x3f]|

				$SP4[($u>>16)&0x3f]|

				$SP6[($u>>24)&0x3f];

			}

		}

	else	

		{

		for ($i=30; $i>0; $i-=4)

			{

			$t=(($r<<1)|(($r>>31)&0x1))&0xffffffff;

			$u=$t^$ks[$i  ];

			$t=$t^$ks[$i+1];

			$t=((($t>>4)&0x0fffffff)|($t<<28))&0xffffffff;

			$l^=	$SP1[ $t     &0x3f]|

				$SP3[($t>> 8)&0x3f]|

				$SP5[($t>>16)&0x3f]|

				$SP7[($t>>24)&0x3f]|

				$SP0[ $u     &0x3f]|

				$SP2[($u>> 8)&0x3f]|

				$SP4[($u>>16)&0x3f]|

				$SP6[($u>>24)&0x3f];



			$t=(($l<<1)|(($l>>31)&0x1))&0xffffffff;

			$u=$t^$ks[$i-2];

			$t=$t^$ks[$i-1];

			$t=((($t>>4)&0x0fffffff)|($t<<28))&0xffffffff;

			$r^=	$SP1[ $t     &0x3f]|

				$SP3[($t>> 8)&0x3f]|

				$SP5[($t>>16)&0x3f]|

				$SP7[($t>>24)&0x3f]|

				$SP0[ $u     &0x3f]|

				$SP2[($u>> 8)&0x3f]|

				$SP4[($u>>16)&0x3f]|

				$SP6[($u>>24)&0x3f];

			}

		}

	&doFP(*l,*r);

	pack("C8",$l&0xff, 

	          ($l>> 8)&0x00ffffff,

	          ($l>>16)&0x0000ffff,

		  ($l>>24)&0x000000ff,

		  $r&0xff,

	          ($r>> 8)&0x00ffffff,

	          ($r>>16)&0x0000ffff,

		  ($r>>24)&0x000000ff);

	}

crypto/des/doIP

deleted100644 → 0
+0 −46
Original line number Diff line number Diff line 
#!/usr/local/bin/perl



@l=(

	 0, 1, 2, 3, 4, 5, 6, 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

	);

@r=(

	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

	);



require 'shifts.pl';



sub PERM_OP

	{

	local(*a,*b,*t,$n,$m)=@_;



	@z=&shift(*a,-$n);

	@z=&xor(*b,*z);

	@z=&and(*z,$m);

	@b=&xor(*b,*z);

	@z=&shift(*z,$n);

	@a=&xor(*a,*z);

	}





@L=@l;

@R=@r;

&PERM_OP(*R,*L,*T,4,0x0f0f0f0f);

&PERM_OP(*L,*R,*T,16,0x0000ffff);

&PERM_OP(*R,*L,*T,2,0x33333333);

&PERM_OP(*L,*R,*T,8,0x00ff00ff);

&PERM_OP(*R,*L,*T,1,0x55555555);

	&printit(@L);

	&printit(@R);

&PERM_OP(*R,*L,*T,1,0x55555555);

&PERM_OP(*L,*R,*T,8,0x00ff00ff);

&PERM_OP(*R,*L,*T,2,0x33333333);

&PERM_OP(*L,*R,*T,16,0x0000ffff);

&PERM_OP(*R,*L,*T,4,0x0f0f0f0f);

	&printit(@L);

	&printit(@R);

crypto/des/doPC1

deleted100644 → 0
+0 −110
Original line number Diff line number Diff line 
#!/usr/local/bin/perl



@l=(

	 0, 1, 2, 3, 4, 5, 6, 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

	);

@r=(

	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

	);



require 'shifts.pl';



sub PERM_OP

	{

	local(*a,*b,*t,$n,$m)=@_;



	@z=&shift(*a,-$n);

	@z=&xor(*b,*z);

	@z=&and(*z,$m);

	@b=&xor(*b,*z);

	@z=&shift(*z,$n);

	@a=&xor(*a,*z);

	}



sub HPERM_OP2

	{

	local(*a,*t,$n,$m)=@_;

	local(@x,@y,$i);



	@z=&shift(*a,16-$n);

	@z=&xor(*a,*z);

	@z=&and(*z,$m);

	@a=&xor(*a,*z);

	@z=&shift(*z,$n-16);

	@a=&xor(*a,*z);

	}



sub HPERM_OP

        {

        local(*a,*t,$n,$m)=@_;

        local(@x,@y,$i);



        for ($i=0; $i<16; $i++)

                {

                $x[$i]=$a[$i];

                $y[$i]=$a[16+$i];

                }

        @z=&shift(*x,-$n);

        @z=&xor(*y,*z);

        @z=&and(*z,$m);

        @y=&xor(*y,*z);

        @z=&shift(*z,$n);

        @x=&xor(*x,*z);

        for ($i=0; $i<16; $i++)

                {

                $a[$i]=$x[$i];

                $a[16+$i]=$y[$i];

                }

        }



@L=@l;

@R=@r;



	print "---\n"; &printit(@R);

&PERM_OP(*R,*L,*T,4,0x0f0f0f0f);

	print "---\n"; &printit(@R);

&HPERM_OP2(*L,*T,-2,0xcccc0000);

&HPERM_OP2(*R,*T,-2,0xcccc0000);

	print "---\n"; &printit(@R);

&PERM_OP(*R,*L,*T,1,0x55555555);

	print "---\n"; &printit(@R);

&PERM_OP(*L,*R,*T,8,0x00ff00ff);

	print "---\n"; &printit(@R);

&PERM_OP(*R,*L,*T,1,0x55555555);

	print "---\n"; &printit(@R);

#	&printit(@L);

	&printit(@R);

print <<"EOF";

==============================

63  55  47  39  31  23  15   7  

62  54  46  38  30  22  14   6  

61  53  45  37  29  21  13   5  

60  52  44  36  --  --  --  --  



57  49  41  33  25  17   9   1  

58  50  42  34  26  18  10   2  

59  51  43  35  27  19  11   3  

28  20  12   4  --  --  --  --  

EOF

exit(1);

@A=&and(*R,0x000000ff);

@A=&shift(*A,16);

@B=&and(*R,0x0000ff00);

@C=&and(*R,0x00ff0000);

@C=&shift(*C,-16);

@D=&and(*L,0xf0000000);

@D=&shift(*D,-4);

@A=&or(*A,*B);

@B=&or(*D,*C);

@R=&or(*A,*B);

@L=&and(*L,0x0fffffff);



	&printit(@L);

	&printit(@R);