There are two parts to this; a UNIX DES implementation and some Plan 9 support for UNIX which uses the DES implementaton. The Plan 9 support gives you encrypt(2) and netkey(2). The only significant difference between my DES and the Plan 9 DES is that Plan 9 packs a DES key into 7 bytes, while I use 8. In the Plan 9 support there's a function (des9key) which does the key conversion (Plan 9 -> 8 bytes). The versions of encrypt and decrypt should call des9key() before invoking deskey(), so it's transparent. The DES implementation has a Makefile, manual entry and test program. The Plan 9 support comes with no Makefile support, that's up to you. # To unbundle, run this file echo 9des.c sed 's/.//' >9des.c <<'//GO.SYSIN DD 9des.c' -/* - * Plan 9 DES encryption. - */ - -#include "des.h" - -int -encrypt(void *key, void *data, int len) -{ - int n; - int r; - int i; - char *b; - - if (len < DESBLOCKLEN) - return 0; - - deskey(key); - - len -= DESBLOCKLEN; - n = len / 7 + 1; - r = len % 7; - - b = data; - - for (i = 0; i < n; i++) - { - des(b, 0); - b += 7; - } - - if (r) - { - b = data; - des(&b[len], 0); - } - - return 1; -} - -/* - * Plan 9 DES decryption. - */ -int -decrypt(void *key, void *data, int len) -{ - int n; - int r; - int i; - char *b; - - if (len < DESBLOCKLEN) - return 0; - - deskey(key); - - len -= DESBLOCKLEN; - n = len / 7 + 1; - r = len % 7; - - b = data; - - if (r) - des(&b[len], 1); - - b = &b[len - r]; - - for (i = 0; i < n; i++) - { - des(b, 1); - b -= 7; - } - - return 1; -} - -/* - * Convert a Plan 9 key to a DES key. - */ -uchar * -des9key(uchar *key) -{ - int i; - int m1[] = { 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F }; - int m2[] = { 0x00, 0xFC, 0xF8, 0xF0, 0xE0, 0xC0, 0x80 }; - static uchar nkey[DESKEYPLEN]; - - nkey[0] = key[0] & 0xFE; - - for (i = 1; i < 7; i++) - nkey[i] = (key[i - 1] & m1[i]) << 8 - i | (key[i] & m2[i]) >> i; - - nkey[7] = (key[6] & 0x7F) << 1; - - - return nkey; -} - -/* - * Securenet challenge encryption. - */ -int -netcrypt(void *key, void *data) -{ - uchar b[DESBLOCKLEN]; - - strncpy((char *)b, (char *)data, DESBLOCKLEN); - - if (!encrypt(des9key(key), b, DESBLOCKLEN)) - return 0; - - sprint((char *)data, "%.2ux%.2ux%.2ux%.2ux", b[0], b[1], b[2], b[3]); - return 1; -} - -/* - * Map a hexadecimal string to Securenet decimal string. - */ -void -sechex(char *buf) -{ - char *p; - - for (p = buf; *p != '\0'; p++) - { - switch (*p) - { - case 'A': - case 'B': - case 'C': - case 'a': - case 'b': - case 'c': - *p = '2'; - break; - - case 'D': - case 'E': - case 'F': - case 'd': - case 'e': - case 'f': - *p = '3'; - break; - } - } -} //GO.SYSIN DD 9des.c echo Makefile sed 's/.//' >Makefile <<'//GO.SYSIN DD Makefile' -# -# Makefile for libdes.a -# - -LIB = libdes.a -MAN = des.3 - -SRC = \ - Makefile \ - README \ - des.h \ - des.c \ - test.c \ - $(MAN) - -CAT = des.3.cat - -all : test $(CAT) - ./test - -$(LIB) : des.o - -rm -f $(LIB) - ar qv $(LIB) des.o - -test : test.o $(LIB) - $(CC) -o test test.o $(LIB) - -$(CAT) : $(MAN) - nroff -man $(MAN) > $(CAT) - -shar : $(SRC) - shar $(SRC) > des.shar - -clean : - -rm -f *.o $(CAT) des.shar - -nuke : clean - -rm -f test $(LIB) - -des.o : des.h des.c -test.o : des.h test.c //GO.SYSIN DD Makefile echo README sed 's/.//' >README <<'//GO.SYSIN DD README' -This is the source to an implementation of the Data Encryption -Standard. The Makefile creates libdes.a, its manual entry and a test -program. Running the test program validates the algorithm in the -encryption direction and prints a message of 'all ok'. Any other -message indicates trouble. - - -Boyd Roberts -boyd@plan9.cs.su.oz.au //GO.SYSIN DD README echo des.3 sed 's/.//' >des.3 <<'//GO.SYSIN DD des.3' -.TH des 3 -.SH NAME -des \- Data Encryption Standard encryption -.SH SYNOPSIS -#include "des.h" -.sp -void des(void *block, int ed) -.sp -void deskey(void *key) -.SH DESCRIPTION -.I Des -and -.I deskey -implement encryption and decryption using the Data Encryption Standard -.SM (DES). -Encryption and decryption are performed destructively -on a -.I block -of DESBLOCKLEN (defined as 8 in "des.h") bytes by -.IR des . -The -.I ed -parameter specifies the encryption direction; 0 for encryption, 1 for -decryption. -.PP -Before encryption or decryption is performed the -.I key -must be set with -.IR deskey . -A -.I key -consists of a block of DESKEYPLEN (defined as 8 in "des.h") bytes which -specify the 56 bit key; the low order bit of each byte is the parity bit, -which is discarded. The -.I key -remains in use until another is set. //GO.SYSIN DD des.3 echo des.c sed 's/.//' >des.c <<'//GO.SYSIN DD des.c' -/* - * The Data Encryption Standard. - * - * A DES block is represented as two unsigned longs with DES bits - * 1-32 corresponding with machine bits 31-0. Keys, as unsigned longs, - * are represented similarly. Bits 8, 16, ... 64 of a key are parity - * bits (ie. low order bit in the byte). An expanded key's bits 1-6 - * correspond to machine bits 5-0. - * - * This is original work, based on the algorithm as specified in - * _Network Security_ by Kaufman et al. - * - * Permission to use this software is granted provided this comment - * block remains. No responsibility, financial or otherwise, can be - * accepted for any consequences arising out of the use of this material. - * - * - * Boyd Roberts - * boyd@plan9.cs.su.oz.au - */ - -#include "des.h" - -/*#define DEBUG 1*/ - -#define XKEYLEN 8 /* expanded key length */ -#define ROUNDS 16 - -/* manipulate the left and right halves of a DES block */ -#include - -#define L_GET(b, x) memcpy(&x, &b[0], DESBLOCKLEN / 2) -#define R_GET(b, x) memcpy(&x, &b[DESBLOCKLEN / 2], DESBLOCKLEN / 2) - -#define L_SET(b, x) memcpy(&b[0], &x, DESBLOCKLEN / 2) -#define R_SET(b, x) memcpy(&b[DESBLOCKLEN / 2], &x, DESBLOCKLEN / 2) - -#ifdef DEBUG -static int edflag; /* encrypt (0) / decrypt (1) */ -static int round; -#endif - -static uchar xkey[ROUNDS][XKEYLEN]; /* expanded per-round keys */ - -/* initial permutation - maps 4 input bits to a 32 bit value */ -static u32bit ip_bits[16] = -{ - 0x00000000, 0x00000001, 0x00000100, 0x00000101, - 0x00010000, 0x00010001, 0x00010100, 0x00010101, - 0x01000000, 0x01000001, 0x01000100, 0x01000101, - 0x01010000, 0x01010001, 0x01010100, 0x01010101, -}; - -/* final permutation (ip-1) - maps 4 input bits to a 32 bit value */ -static u32bit ip_1_bits[16] = -{ - 0x00000000, 0x80000000, 0x00800000, 0x80800000, - 0x00008000, 0x80008000, 0x00808000, 0x80808000, - 0x00000080, 0x80000080, 0x00800080, 0x80800080, - 0x00008080, 0x80008080, 0x00808080, 0x80808080, -}; - -/* initial permutation of the left half of the key */ -static u32bit c0_bits[16] = -{ - 0x00000000, 0x00000001, 0x00000100, 0x00000101, - 0x00010000, 0x00010001, 0x00010100, 0x00010101, - 0x01000000, 0x01000001, 0x01000100, 0x01000101, - 0x01010000, 0x01010001, 0x01010100, 0x01010101, -}; - -/* initial permutation of the right half of the key */ -static u32bit d0_bits[16] = -{ - 0x00000000, 0x01000000, 0x00010000, 0x01010000, - 0x00000100, 0x01000100, 0x00010100, 0x01010100, - 0x00000010, 0x01000010, 0x00010010, 0x01010010, - 0x00000110, 0x01000110, 0x00010110, 0x01010110, -}; - -/* permutation of the left half of a per-round key */ -/* maps each input byte to a 32 bit value */ -static u32bit kil_bits[4][256] = -{ - /* 0 */ - 0x00000000, 0x00004000, 0x00001000, 0x00005000, - 0x00400000, 0x00404000, 0x00401000, 0x00405000, - 0x04000000, 0x04004000, 0x04001000, 0x04005000, - 0x04400000, 0x04404000, 0x04401000, 0x04405000, - 0x00010000, 0x00014000, 0x00011000, 0x00015000, - 0x00410000, 0x00414000, 0x00411000, 0x00415000, - 0x04010000, 0x04014000, 0x04011000, 0x04015000, - 0x04410000, 0x04414000, 0x04411000, 0x04415000, - 0x02000000, 0x02004000, 0x02001000, 0x02005000, - 0x02400000, 0x02404000, 0x02401000, 0x02405000, - 0x06000000, 0x06004000, 0x06001000, 0x06005000, - 0x06400000, 0x06404000, 0x06401000, 0x06405000, - 0x02010000, 0x02014000, 0x02011000, 0x02015000, - 0x02410000, 0x02414000, 0x02411000, 0x02415000, - 0x06010000, 0x06014000, 0x06011000, 0x06015000, - 0x06410000, 0x06414000, 0x06411000, 0x06415000, - 0x00000100, 0x00004100, 0x00001100, 0x00005100, - 0x00400100, 0x00404100, 0x00401100, 0x00405100, - 0x04000100, 0x04004100, 0x04001100, 0x04005100, - 0x04400100, 0x04404100, 0x04401100, 0x04405100, - 0x00010100, 0x00014100, 0x00011100, 0x00015100, - 0x00410100, 0x00414100, 0x00411100, 0x00415100, - 0x04010100, 0x04014100, 0x04011100, 0x04015100, - 0x04410100, 0x04414100, 0x04411100, 0x04415100, - 0x02000100, 0x02004100, 0x02001100, 0x02005100, - 0x02400100, 0x02404100, 0x02401100, 0x02405100, - 0x06000100, 0x06004100, 0x06001100, 0x06005100, - 0x06400100, 0x06404100, 0x06401100, 0x06405100, - 0x02010100, 0x02014100, 0x02011100, 0x02015100, - 0x02410100, 0x02414100, 0x02411100, 0x02415100, - 0x06010100, 0x06014100, 0x06011100, 0x06015100, - 0x06410100, 0x06414100, 0x06411100, 0x06415100, - 0x08000000, 0x08004000, 0x08001000, 0x08005000, - 0x08400000, 0x08404000, 0x08401000, 0x08405000, - 0x0c000000, 0x0c004000, 0x0c001000, 0x0c005000, - 0x0c400000, 0x0c404000, 0x0c401000, 0x0c405000, - 0x08010000, 0x08014000, 0x08011000, 0x08015000, - 0x08410000, 0x08414000, 0x08411000, 0x08415000, - 0x0c010000, 0x0c014000, 0x0c011000, 0x0c015000, - 0x0c410000, 0x0c414000, 0x0c411000, 0x0c415000, - 0x0a000000, 0x0a004000, 0x0a001000, 0x0a005000, - 0x0a400000, 0x0a404000, 0x0a401000, 0x0a405000, - 0x0e000000, 0x0e004000, 0x0e001000, 0x0e005000, - 0x0e400000, 0x0e404000, 0x0e401000, 0x0e405000, - 0x0a010000, 0x0a014000, 0x0a011000, 0x0a015000, - 0x0a410000, 0x0a414000, 0x0a411000, 0x0a415000, - 0x0e010000, 0x0e014000, 0x0e011000, 0x0e015000, - 0x0e410000, 0x0e414000, 0x0e411000, 0x0e415000, - 0x08000100, 0x08004100, 0x08001100, 0x08005100, - 0x08400100, 0x08404100, 0x08401100, 0x08405100, - 0x0c000100, 0x0c004100, 0x0c001100, 0x0c005100, - 0x0c400100, 0x0c404100, 0x0c401100, 0x0c405100, - 0x08010100, 0x08014100, 0x08011100, 0x08015100, - 0x08410100, 0x08414100, 0x08411100, 0x08415100, - 0x0c010100, 0x0c014100, 0x0c011100, 0x0c015100, - 0x0c410100, 0x0c414100, 0x0c411100, 0x0c415100, - 0x0a000100, 0x0a004100, 0x0a001100, 0x0a005100, - 0x0a400100, 0x0a404100, 0x0a401100, 0x0a405100, - 0x0e000100, 0x0e004100, 0x0e001100, 0x0e005100, - 0x0e400100, 0x0e404100, 0x0e401100, 0x0e405100, - 0x0a010100, 0x0a014100, 0x0a011100, 0x0a015100, - 0x0a410100, 0x0a414100, 0x0a411100, 0x0a415100, - 0x0e010100, 0x0e014100, 0x0e011100, 0x0e015100, - 0x0e410100, 0x0e414100, 0x0e411100, 0x0e415100, - /* 1 */ - 0x00000000, 0x00002000, 0x00800000, 0x00802000, - 0x80000000, 0x80002000, 0x80800000, 0x80802000, - 0x00000200, 0x00002200, 0x00800200, 0x00802200, - 0x80000200, 0x80002200, 0x80800200, 0x80802200, - 0x00020000, 0x00022000, 0x00820000, 0x00822000, - 0x80020000, 0x80022000, 0x80820000, 0x80822000, - 0x00020200, 0x00022200, 0x00820200, 0x00822200, - 0x80020200, 0x80022200, 0x80820200, 0x80822200, - 0x20000000, 0x20002000, 0x20800000, 0x20802000, - 0xa0000000, 0xa0002000, 0xa0800000, 0xa0802000, - 0x20000200, 0x20002200, 0x20800200, 0x20802200, - 0xa0000200, 0xa0002200, 0xa0800200, 0xa0802200, - 0x20020000, 0x20022000, 0x20820000, 0x20822000, - 0xa0020000, 0xa0022000, 0xa0820000, 0xa0822000, - 0x20020200, 0x20022200, 0x20820200, 0x20822200, - 0xa0020200, 0xa0022200, 0xa0820200, 0xa0822200, - 0x00100000, 0x00102000, 0x00900000, 0x00902000, - 0x80100000, 0x80102000, 0x80900000, 0x80902000, - 0x00100200, 0x00102200, 0x00900200, 0x00902200, - 0x80100200, 0x80102200, 0x80900200, 0x80902200, - 0x00120000, 0x00122000, 0x00920000, 0x00922000, - 0x80120000, 0x80122000, 0x80920000, 0x80922000, - 0x00120200, 0x00122200, 0x00920200, 0x00922200, - 0x80120200, 0x80122200, 0x80920200, 0x80922200, - 0x20100000, 0x20102000, 0x20900000, 0x20902000, - 0xa0100000, 0xa0102000, 0xa0900000, 0xa0902000, - 0x20100200, 0x20102200, 0x20900200, 0x20902200, - 0xa0100200, 0xa0102200, 0xa0900200, 0xa0902200, - 0x20120000, 0x20122000, 0x20920000, 0x20922000, - 0xa0120000, 0xa0122000, 0xa0920000, 0xa0922000, - 0x20120200, 0x20122200, 0x20920200, 0x20922200, - 0xa0120200, 0xa0122200, 0xa0920200, 0xa0922200, - 0x00000000, 0x00002000, 0x00800000, 0x00802000, - 0x80000000, 0x80002000, 0x80800000, 0x80802000, - 0x00000200, 0x00002200, 0x00800200, 0x00802200, - 0x80000200, 0x80002200, 0x80800200, 0x80802200, - 0x00020000, 0x00022000, 0x00820000, 0x00822000, - 0x80020000, 0x80022000, 0x80820000, 0x80822000, - 0x00020200, 0x00022200, 0x00820200, 0x00822200, - 0x80020200, 0x80022200, 0x80820200, 0x80822200, - 0x20000000, 0x20002000, 0x20800000, 0x20802000, - 0xa0000000, 0xa0002000, 0xa0800000, 0xa0802000, - 0x20000200, 0x20002200, 0x20800200, 0x20802200, - 0xa0000200, 0xa0002200, 0xa0800200, 0xa0802200, - 0x20020000, 0x20022000, 0x20820000, 0x20822000, - 0xa0020000, 0xa0022000, 0xa0820000, 0xa0822000, - 0x20020200, 0x20022200, 0x20820200, 0x20822200, - 0xa0020200, 0xa0022200, 0xa0820200, 0xa0822200, - 0x00100000, 0x00102000, 0x00900000, 0x00902000, - 0x80100000, 0x80102000, 0x80900000, 0x80902000, - 0x00100200, 0x00102200, 0x00900200, 0x00902200, - 0x80100200, 0x80102200, 0x80900200, 0x80902200, - 0x00120000, 0x00122000, 0x00920000, 0x00922000, - 0x80120000, 0x80122000, 0x80920000, 0x80922000, - 0x00120200, 0x00122200, 0x00920200, 0x00922200, - 0x80120200, 0x80122200, 0x80920200, 0x80922200, - 0x20100000, 0x20102000, 0x20900000, 0x20902000, - 0xa0100000, 0xa0102000, 0xa0900000, 0xa0902000, - 0x20100200, 0x20102200, 0x20900200, 0x20902200, - 0xa0100200, 0xa0102200, 0xa0900200, 0xa0902200, - 0x20120000, 0x20122000, 0x20920000, 0x20922000, - 0xa0120000, 0xa0122000, 0xa0920000, 0xa0922000, - 0x20120200, 0x20122200, 0x20920200, 0x20922200, - 0xa0120200, 0xa0122200, 0xa0920200, 0xa0922200, - /* 2 */ - 0x00000000, 0x10000000, 0x00080000, 0x10080000, - 0x00000000, 0x10000000, 0x00080000, 0x10080000, - 0x00200000, 0x10200000, 0x00280000, 0x10280000, - 0x00200000, 0x10200000, 0x00280000, 0x10280000, - 0x00000400, 0x10000400, 0x00080400, 0x10080400, - 0x00000400, 0x10000400, 0x00080400, 0x10080400, - 0x00200400, 0x10200400, 0x00280400, 0x10280400, - 0x00200400, 0x10200400, 0x00280400, 0x10280400, - 0x00040000, 0x10040000, 0x000c0000, 0x100c0000, - 0x00040000, 0x10040000, 0x000c0000, 0x100c0000, - 0x00240000, 0x10240000, 0x002c0000, 0x102c0000, - 0x00240000, 0x10240000, 0x002c0000, 0x102c0000, - 0x00040400, 0x10040400, 0x000c0400, 0x100c0400, - 0x00040400, 0x10040400, 0x000c0400, 0x100c0400, - 0x00240400, 0x10240400, 0x002c0400, 0x102c0400, - 0x00240400, 0x10240400, 0x002c0400, 0x102c0400, - 0x00000000, 0x10000000, 0x00080000, 0x10080000, - 0x00000000, 0x10000000, 0x00080000, 0x10080000, - 0x00200000, 0x10200000, 0x00280000, 0x10280000, - 0x00200000, 0x10200000, 0x00280000, 0x10280000, - 0x00000400, 0x10000400, 0x00080400, 0x10080400, - 0x00000400, 0x10000400, 0x00080400, 0x10080400, - 0x00200400, 0x10200400, 0x00280400, 0x10280400, - 0x00200400, 0x10200400, 0x00280400, 0x10280400, - 0x00040000, 0x10040000, 0x000c0000, 0x100c0000, - 0x00040000, 0x10040000, 0x000c0000, 0x100c0000, - 0x00240000, 0x10240000, 0x002c0000, 0x102c0000, - 0x00240000, 0x10240000, 0x002c0000, 0x102c0000, - 0x00040400, 0x10040400, 0x000c0400, 0x100c0400, - 0x00040400, 0x10040400, 0x000c0400, 0x100c0400, - 0x00240400, 0x10240400, 0x002c0400, 0x102c0400, - 0x00240400, 0x10240400, 0x002c0400, 0x102c0400, - 0x40000000, 0x50000000, 0x40080000, 0x50080000, - 0x40000000, 0x50000000, 0x40080000, 0x50080000, - 0x40200000, 0x50200000, 0x40280000, 0x50280000, - 0x40200000, 0x50200000, 0x40280000, 0x50280000, - 0x40000400, 0x50000400, 0x40080400, 0x50080400, - 0x40000400, 0x50000400, 0x40080400, 0x50080400, - 0x40200400, 0x50200400, 0x40280400, 0x50280400, - 0x40200400, 0x50200400, 0x40280400, 0x50280400, - 0x40040000, 0x50040000, 0x400c0000, 0x500c0000, - 0x40040000, 0x50040000, 0x400c0000, 0x500c0000, - 0x40240000, 0x50240000, 0x402c0000, 0x502c0000, - 0x40240000, 0x50240000, 0x402c0000, 0x502c0000, - 0x40040400, 0x50040400, 0x400c0400, 0x500c0400, - 0x40040400, 0x50040400, 0x400c0400, 0x500c0400, - 0x40240400, 0x50240400, 0x402c0400, 0x502c0400, - 0x40240400, 0x50240400, 0x402c0400, 0x502c0400, - 0x40000000, 0x50000000, 0x40080000, 0x50080000, - 0x40000000, 0x50000000, 0x40080000, 0x50080000, - 0x40200000, 0x50200000, 0x40280000, 0x50280000, - 0x40200000, 0x50200000, 0x40280000, 0x50280000, - 0x40000400, 0x50000400, 0x40080400, 0x50080400, - 0x40000400, 0x50000400, 0x40080400, 0x50080400, - 0x40200400, 0x50200400, 0x40280400, 0x50280400, - 0x40200400, 0x50200400, 0x40280400, 0x50280400, - 0x40040000, 0x50040000, 0x400c0000, 0x500c0000, - 0x40040000, 0x50040000, 0x400c0000, 0x500c0000, - 0x40240000, 0x50240000, 0x402c0000, 0x502c0000, - 0x40240000, 0x50240000, 0x402c0000, 0x502c0000, - 0x40040400, 0x50040400, 0x400c0400, 0x500c0400, - 0x40040400, 0x50040400, 0x400c0400, 0x500c0400, - 0x40240400, 0x50240400, 0x402c0400, 0x502c0400, - 0x40240400, 0x50240400, 0x402c0400, 0x502c0400, - /* 3 */ - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x01000000, 0x01000000, 0x01000000, 0x01000000, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x00000800, 0x00000800, 0x00000800, 0x00000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x01000800, 0x01000800, 0x01000800, 0x01000800, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x00008000, 0x00008000, 0x00008000, 0x00008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x01008000, 0x01008000, 0x01008000, 0x01008000, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x00008800, 0x00008800, 0x00008800, 0x00008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, - 0x01008800, 0x01008800, 0x01008800, 0x01008800, -}; - -/* permutation of the right half of a per-round key */ -/* maps each input byte to a 32 bit value */ -static u32bit kir_bits[4][256] = -{ - /* 0 */ - 0x00000000, 0x00000400, 0x00000000, 0x00000400, - 0x00008000, 0x00008400, 0x00008000, 0x00008400, - 0x00200000, 0x00200400, 0x00200000, 0x00200400, - 0x00208000, 0x00208400, 0x00208000, 0x00208400, - 0x00000100, 0x00000500, 0x00000100, 0x00000500, - 0x00008100, 0x00008500, 0x00008100, 0x00008500, - 0x00200100, 0x00200500, 0x00200100, 0x00200500, - 0x00208100, 0x00208500, 0x00208100, 0x00208500, - 0x20000000, 0x20000400, 0x20000000, 0x20000400, - 0x20008000, 0x20008400, 0x20008000, 0x20008400, - 0x20200000, 0x20200400, 0x20200000, 0x20200400, - 0x20208000, 0x20208400, 0x20208000, 0x20208400, - 0x20000100, 0x20000500, 0x20000100, 0x20000500, - 0x20008100, 0x20008500, 0x20008100, 0x20008500, - 0x20200100, 0x20200500, 0x20200100, 0x20200500, - 0x20208100, 0x20208500, 0x20208100, 0x20208500, - 0x02000000, 0x02000400, 0x02000000, 0x02000400, - 0x02008000, 0x02008400, 0x02008000, 0x02008400, - 0x02200000, 0x02200400, 0x02200000, 0x02200400, - 0x02208000, 0x02208400, 0x02208000, 0x02208400, - 0x02000100, 0x02000500, 0x02000100, 0x02000500, - 0x02008100, 0x02008500, 0x02008100, 0x02008500, - 0x02200100, 0x02200500, 0x02200100, 0x02200500, - 0x02208100, 0x02208500, 0x02208100, 0x02208500, - 0x22000000, 0x22000400, 0x22000000, 0x22000400, - 0x22008000, 0x22008400, 0x22008000, 0x22008400, - 0x22200000, 0x22200400, 0x22200000, 0x22200400, - 0x22208000, 0x22208400, 0x22208000, 0x22208400, - 0x22000100, 0x22000500, 0x22000100, 0x22000500, - 0x22008100, 0x22008500, 0x22008100, 0x22008500, - 0x22200100, 0x22200500, 0x22200100, 0x22200500, - 0x22208100, 0x22208500, 0x22208100, 0x22208500, - 0x00000200, 0x00000600, 0x00000200, 0x00000600, - 0x00008200, 0x00008600, 0x00008200, 0x00008600, - 0x00200200, 0x00200600, 0x00200200, 0x00200600, - 0x00208200, 0x00208600, 0x00208200, 0x00208600, - 0x00000300, 0x00000700, 0x00000300, 0x00000700, - 0x00008300, 0x00008700, 0x00008300, 0x00008700, - 0x00200300, 0x00200700, 0x00200300, 0x00200700, - 0x00208300, 0x00208700, 0x00208300, 0x00208700, - 0x20000200, 0x20000600, 0x20000200, 0x20000600, - 0x20008200, 0x20008600, 0x20008200, 0x20008600, - 0x20200200, 0x20200600, 0x20200200, 0x20200600, - 0x20208200, 0x20208600, 0x20208200, 0x20208600, - 0x20000300, 0x20000700, 0x20000300, 0x20000700, - 0x20008300, 0x20008700, 0x20008300, 0x20008700, - 0x20200300, 0x20200700, 0x20200300, 0x20200700, - 0x20208300, 0x20208700, 0x20208300, 0x20208700, - 0x02000200, 0x02000600, 0x02000200, 0x02000600, - 0x02008200, 0x02008600, 0x02008200, 0x02008600, - 0x02200200, 0x02200600, 0x02200200, 0x02200600, - 0x02208200, 0x02208600, 0x02208200, 0x02208600, - 0x02000300, 0x02000700, 0x02000300, 0x02000700, - 0x02008300, 0x02008700, 0x02008300, 0x02008700, - 0x02200300, 0x02200700, 0x02200300, 0x02200700, - 0x02208300, 0x02208700, 0x02208300, 0x02208700, - 0x22000200, 0x22000600, 0x22000200, 0x22000600, - 0x22008200, 0x22008600, 0x22008200, 0x22008600, - 0x22200200, 0x22200600, 0x22200200, 0x22200600, - 0x22208200, 0x22208600, 0x22208200, 0x22208600, - 0x22000300, 0x22000700, 0x22000300, 0x22000700, - 0x22008300, 0x22008700, 0x22008300, 0x22008700, - 0x22200300, 0x22200700, 0x22200300, 0x22200700, - 0x22208300, 0x22208700, 0x22208300, 0x22208700, - /* 1 */ - 0x00000000, 0x00080000, 0x00000000, 0x00080000, - 0x00001000, 0x00081000, 0x00001000, 0x00081000, - 0x80000000, 0x80080000, 0x80000000, 0x80080000, - 0x80001000, 0x80081000, 0x80001000, 0x80081000, - 0x01000000, 0x01080000, 0x01000000, 0x01080000, - 0x01001000, 0x01081000, 0x01001000, 0x01081000, - 0x81000000, 0x81080000, 0x81000000, 0x81080000, - 0x81001000, 0x81081000, 0x81001000, 0x81081000, - 0x00020000, 0x000a0000, 0x00020000, 0x000a0000, - 0x00021000, 0x000a1000, 0x00021000, 0x000a1000, - 0x80020000, 0x800a0000, 0x80020000, 0x800a0000, - 0x80021000, 0x800a1000, 0x80021000, 0x800a1000, - 0x01020000, 0x010a0000, 0x01020000, 0x010a0000, - 0x01021000, 0x010a1000, 0x01021000, 0x010a1000, - 0x81020000, 0x810a0000, 0x81020000, 0x810a0000, - 0x81021000, 0x810a1000, 0x81021000, 0x810a1000, - 0x00000000, 0x00080000, 0x00000000, 0x00080000, - 0x00001000, 0x00081000, 0x00001000, 0x00081000, - 0x80000000, 0x80080000, 0x80000000, 0x80080000, - 0x80001000, 0x80081000, 0x80001000, 0x80081000, - 0x01000000, 0x01080000, 0x01000000, 0x01080000, - 0x01001000, 0x01081000, 0x01001000, 0x01081000, - 0x81000000, 0x81080000, 0x81000000, 0x81080000, - 0x81001000, 0x81081000, 0x81001000, 0x81081000, - 0x00020000, 0x000a0000, 0x00020000, 0x000a0000, - 0x00021000, 0x000a1000, 0x00021000, 0x000a1000, - 0x80020000, 0x800a0000, 0x80020000, 0x800a0000, - 0x80021000, 0x800a1000, 0x80021000, 0x800a1000, - 0x01020000, 0x010a0000, 0x01020000, 0x010a0000, - 0x01021000, 0x010a1000, 0x01021000, 0x010a1000, - 0x81020000, 0x810a0000, 0x81020000, 0x810a0000, - 0x81021000, 0x810a1000, 0x81021000, 0x810a1000, - 0x10000000, 0x10080000, 0x10000000, 0x10080000, - 0x10001000, 0x10081000, 0x10001000, 0x10081000, - 0x90000000, 0x90080000, 0x90000000, 0x90080000, - 0x90001000, 0x90081000, 0x90001000, 0x90081000, - 0x11000000, 0x11080000, 0x11000000, 0x11080000, - 0x11001000, 0x11081000, 0x11001000, 0x11081000, - 0x91000000, 0x91080000, 0x91000000, 0x91080000, - 0x91001000, 0x91081000, 0x91001000, 0x91081000, - 0x10020000, 0x100a0000, 0x10020000, 0x100a0000, - 0x10021000, 0x100a1000, 0x10021000, 0x100a1000, - 0x90020000, 0x900a0000, 0x90020000, 0x900a0000, - 0x90021000, 0x900a1000, 0x90021000, 0x900a1000, - 0x11020000, 0x110a0000, 0x11020000, 0x110a0000, - 0x11021000, 0x110a1000, 0x11021000, 0x110a1000, - 0x91020000, 0x910a0000, 0x91020000, 0x910a0000, - 0x91021000, 0x910a1000, 0x91021000, 0x910a1000, - 0x10000000, 0x10080000, 0x10000000, 0x10080000, - 0x10001000, 0x10081000, 0x10001000, 0x10081000, - 0x90000000, 0x90080000, 0x90000000, 0x90080000, - 0x90001000, 0x90081000, 0x90001000, 0x90081000, - 0x11000000, 0x11080000, 0x11000000, 0x11080000, - 0x11001000, 0x11081000, 0x11001000, 0x11081000, - 0x91000000, 0x91080000, 0x91000000, 0x91080000, - 0x91001000, 0x91081000, 0x91001000, 0x91081000, - 0x10020000, 0x100a0000, 0x10020000, 0x100a0000, - 0x10021000, 0x100a1000, 0x10021000, 0x100a1000, - 0x90020000, 0x900a0000, 0x90020000, 0x900a0000, - 0x90021000, 0x900a1000, 0x90021000, 0x900a1000, - 0x11020000, 0x110a0000, 0x11020000, 0x110a0000, - 0x11021000, 0x110a1000, 0x11021000, 0x110a1000, - 0x91020000, 0x910a0000, 0x91020000, 0x910a0000, - 0x91021000, 0x910a1000, 0x91021000, 0x910a1000, - /* 2 */ - 0x00000000, 0x40000000, 0x00800000, 0x40800000, - 0x00000800, 0x40000800, 0x00800800, 0x40800800, - 0x00040000, 0x40040000, 0x00840000, 0x40840000, - 0x00040800, 0x40040800, 0x00840800, 0x40840800, - 0x00100000, 0x40100000, 0x00900000, 0x40900000, - 0x00100800, 0x40100800, 0x00900800, 0x40900800, - 0x00140000, 0x40140000, 0x00940000, 0x40940000, - 0x00140800, 0x40140800, 0x00940800, 0x40940800, - 0x08000000, 0x48000000, 0x08800000, 0x48800000, - 0x08000800, 0x48000800, 0x08800800, 0x48800800, - 0x08040000, 0x48040000, 0x08840000, 0x48840000, - 0x08040800, 0x48040800, 0x08840800, 0x48840800, - 0x08100000, 0x48100000, 0x08900000, 0x48900000, - 0x08100800, 0x48100800, 0x08900800, 0x48900800, - 0x08140000, 0x48140000, 0x08940000, 0x48940000, - 0x08140800, 0x48140800, 0x08940800, 0x48940800, - 0x00002000, 0x40002000, 0x00802000, 0x40802000, - 0x00002800, 0x40002800, 0x00802800, 0x40802800, - 0x00042000, 0x40042000, 0x00842000, 0x40842000, - 0x00042800, 0x40042800, 0x00842800, 0x40842800, - 0x00102000, 0x40102000, 0x00902000, 0x40902000, - 0x00102800, 0x40102800, 0x00902800, 0x40902800, - 0x00142000, 0x40142000, 0x00942000, 0x40942000, - 0x00142800, 0x40142800, 0x00942800, 0x40942800, - 0x08002000, 0x48002000, 0x08802000, 0x48802000, - 0x08002800, 0x48002800, 0x08802800, 0x48802800, - 0x08042000, 0x48042000, 0x08842000, 0x48842000, - 0x08042800, 0x48042800, 0x08842800, 0x48842800, - 0x08102000, 0x48102000, 0x08902000, 0x48902000, - 0x08102800, 0x48102800, 0x08902800, 0x48902800, - 0x08142000, 0x48142000, 0x08942000, 0x48942000, - 0x08142800, 0x48142800, 0x08942800, 0x48942800, - 0x00400000, 0x40400000, 0x00c00000, 0x40c00000, - 0x00400800, 0x40400800, 0x00c00800, 0x40c00800, - 0x00440000, 0x40440000, 0x00c40000, 0x40c40000, - 0x00440800, 0x40440800, 0x00c40800, 0x40c40800, - 0x00500000, 0x40500000, 0x00d00000, 0x40d00000, - 0x00500800, 0x40500800, 0x00d00800, 0x40d00800, - 0x00540000, 0x40540000, 0x00d40000, 0x40d40000, - 0x00540800, 0x40540800, 0x00d40800, 0x40d40800, - 0x08400000, 0x48400000, 0x08c00000, 0x48c00000, - 0x08400800, 0x48400800, 0x08c00800, 0x48c00800, - 0x08440000, 0x48440000, 0x08c40000, 0x48c40000, - 0x08440800, 0x48440800, 0x08c40800, 0x48c40800, - 0x08500000, 0x48500000, 0x08d00000, 0x48d00000, - 0x08500800, 0x48500800, 0x08d00800, 0x48d00800, - 0x08540000, 0x48540000, 0x08d40000, 0x48d40000, - 0x08540800, 0x48540800, 0x08d40800, 0x48d40800, - 0x00402000, 0x40402000, 0x00c02000, 0x40c02000, - 0x00402800, 0x40402800, 0x00c02800, 0x40c02800, - 0x00442000, 0x40442000, 0x00c42000, 0x40c42000, - 0x00442800, 0x40442800, 0x00c42800, 0x40c42800, - 0x00502000, 0x40502000, 0x00d02000, 0x40d02000, - 0x00502800, 0x40502800, 0x00d02800, 0x40d02800, - 0x00542000, 0x40542000, 0x00d42000, 0x40d42000, - 0x00542800, 0x40542800, 0x00d42800, 0x40d42800, - 0x08402000, 0x48402000, 0x08c02000, 0x48c02000, - 0x08402800, 0x48402800, 0x08c02800, 0x48c02800, - 0x08442000, 0x48442000, 0x08c42000, 0x48c42000, - 0x08442800, 0x48442800, 0x08c42800, 0x48c42800, - 0x08502000, 0x48502000, 0x08d02000, 0x48d02000, - 0x08502800, 0x48502800, 0x08d02800, 0x48d02800, - 0x08542000, 0x48542000, 0x08d42000, 0x48d42000, - 0x08542800, 0x48542800, 0x08d42800, 0x48d42800, - /* 3 */ - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x00010000, 0x00010000, 0x00010000, 0x00010000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04000000, 0x04000000, 0x04000000, 0x04000000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x04010000, 0x04010000, 0x04010000, 0x04010000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00004000, 0x00004000, 0x00004000, 0x00004000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x00014000, 0x00014000, 0x00014000, 0x00014000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04004000, 0x04004000, 0x04004000, 0x04004000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, - 0x04014000, 0x04014000, 0x04014000, 0x04014000, -}; - -/* S boxes */ -static uchar s[XKEYLEN][64] = -{ - /* 1 */ - { - 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, - }, - - /* 2 */ - { - 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, - }, - - /* 3 */ - { - 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, - }, - - /* 4 */ - { - 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, - }, - - /* 5 */ - { - 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, - }, - - /* 6 */ - { - 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, - }, - - /* 7 */ - { - 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, - }, - - /* 8 */ - { - 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, - }, -}; - -/* permutation following the S box substitution */ -/* maps each 4 bits of input to a 32 bit value */ -static u32bit sp_bits[XKEYLEN][16] = -{ - 0x00000000, 0x00000002, 0x00000200, 0x00000202, - 0x00008000, 0x00008002, 0x00008200, 0x00008202, - 0x00800000, 0x00800002, 0x00800200, 0x00800202, - 0x00808000, 0x00808002, 0x00808200, 0x00808202, - 0x00000000, 0x00004000, 0x40000000, 0x40004000, - 0x00000010, 0x00004010, 0x40000010, 0x40004010, - 0x00080000, 0x00084000, 0x40080000, 0x40084000, - 0x00080010, 0x00084010, 0x40080010, 0x40084010, - 0x00000000, 0x04000000, 0x00000004, 0x04000004, - 0x00010000, 0x04010000, 0x00010004, 0x04010004, - 0x00000100, 0x04000100, 0x00000104, 0x04000104, - 0x00010100, 0x04010100, 0x00010104, 0x04010104, - 0x00000000, 0x80000000, 0x00400000, 0x80400000, - 0x00001000, 0x80001000, 0x00401000, 0x80401000, - 0x00000040, 0x80000040, 0x00400040, 0x80400040, - 0x00001040, 0x80001040, 0x00401040, 0x80401040, - 0x00000000, 0x20000000, 0x00000080, 0x20000080, - 0x00040000, 0x20040000, 0x00040080, 0x20040080, - 0x01000000, 0x21000000, 0x01000080, 0x21000080, - 0x01040000, 0x21040000, 0x01040080, 0x21040080, - 0x00000000, 0x00002000, 0x00200000, 0x00202000, - 0x00000008, 0x00002008, 0x00200008, 0x00202008, - 0x10000000, 0x10002000, 0x10200000, 0x10202000, - 0x10000008, 0x10002008, 0x10200008, 0x10202008, - 0x00000000, 0x02000000, 0x00000400, 0x02000400, - 0x00100000, 0x02100000, 0x00100400, 0x02100400, - 0x00000001, 0x02000001, 0x00000401, 0x02000401, - 0x00100001, 0x02100001, 0x00100401, 0x02100401, - 0x00000000, 0x00000800, 0x00020000, 0x00020800, - 0x00000020, 0x00000820, 0x00020020, 0x00020820, - 0x08000000, 0x08000800, 0x08020000, 0x08020800, - 0x08000020, 0x08000820, 0x08020020, 0x08020820, -}; - -#ifdef DEBUG -static void -log(uchar *b) -{ - printf("%c %2d %02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x\n", edflag ? 'D' : 'E', round, b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); -} -#endif - -/* - * Convert machine representation of 32 bits into 4 bytes. - */ -static void -unpack(u32bit l, uchar *b) -{ - b[0] = l >> 24 & 0xFF; - b[1] = l >> 16 & 0xFF; - b[2] = l >> 8 & 0xFF; - b[3] = l & 0xFF; -} - -/* - * Initial Permutation. - */ -static void -ip(uchar *b) -{ - int i; - uchar c; - u32bit l; - u32bit r; - - l = 0; - r = 0; - - for (i = 0; i < DESBLOCKLEN; i++) - { - c = b[i]; - - l |= ip_bits[(c & 0x40) >> 3 |(c & 0x10) >> 2 |(c & 0x04) >> 1 |(c & 0x01)] << i; - r |= ip_bits[(c & 0x80) >> 4 |(c & 0x20) >> 3 |(c & 0x08) >> 2 |(c & 0x02) >> 1] << i; - } - - L_SET(b, l); - R_SET(b, r); -} - -/* - * Final Permutation. - */ -static void -ip_1(u32bit l, u32bit r, uchar *b) -{ - int i; - uchar c; - u32bit pl; - u32bit pr; - static int ls[] = { 1, 3, 5, 7, }; - static int rs[] = { 0, 2, 4, 6, }; - - pl = 0; - pr = 0; - - for (i = 0; i < sizeof(u32bit); i++) - { - c = l >> 24 - i * 8 & 0xFF; - pl |= ip_1_bits[c & 0xF] >> ls[i]; - pr |= ip_1_bits[c >> 4 & 0xF] >> ls[i]; - } - - for (i = 0; i < sizeof(u32bit); i++) - { - c = r >> 24 - i * 8 & 0xFF; - pl |= ip_1_bits[c & 0xF] >> rs[i]; - pr |= ip_1_bits[c >> 4 & 0xF] >> rs[i]; - } - - unpack(pl, &b[0]); - unpack(pr, &b[4]); -} - - -/* - * Rotate 28 bits left 1 bit. - */ -static u32bit -rol(u32bit l) -{ - int c; - - c = (l & 0x80000000) >> 27; - l <<= 1; - l |= c; - - return l; -} - -/* - * Rotate 28 bits left 2 bits. - */ -static u32bit -rol2(u32bit l) -{ - int c; - - c = (l & 0xC0000000) >> 26; - l <<= 2; - l |= c; - - return l; -} - -/* permutation for each per-round key */ -#define kp(l, t) (t[0][l >> 24 & 0xFF] | t[1][l >> 16 & 0xFF] | t[2][l >> 8 & 0xFF] | t[3][l & 0xFF]) - -/* - * Expand a 24 bit key into 4 bytes, each containing 6 bits. - */ -static void -kexpand(u32bit k, uchar *x) -{ - int i; - u32bit b; - - b = 0xFC000000; - - for (i = 0; i < XKEYLEN / 2; i++) - { - *x++ = (k & b) >> 26 - i * 6; - b >>= 6; - } -} - -/* - * Generate the per-round keys from the 56 bit key. - */ -void -deskey(void *key) -{ - uchar *k; - int i; -u32bit j; - u32bit c0; - u32bit d0; - static int c0m[] = { 0xE, 0xE, 0xE, 0xE, 0xF, 0xF, 0xF, 0xF }; - static int d0m[] = { 0xF, 0xF, 0xF, 0xF, 0x7, 0x7, 0x7, 0x7 }; - static u32bit (*rf[])(u32bit) = { rol, rol, rol2, rol2, rol2, rol2, rol2, rol2, rol, rol2, rol2, rol2, rol2, rol2, rol2, rol }; - - k = (uchar *)key; - c0 = 0; - d0 = 0; - - for (i = 0; i < DESKEYPLEN; i++) - { - uchar c; - - c = *k++; - c0 |= c0_bits[c >> 4 & c0m[i]] << i; - d0 |= d0_bits[c >> 1 & d0m[i]] << i; - } - - for (i = 0; i < ROUNDS; i++) - { - c0 = (*rf[i])(c0); - kexpand(kp(c0, kil_bits), &xkey[i][0]); - d0 = (*rf[i])(d0); - kexpand(kp(d0, kir_bits), &xkey[i][4]); - } -} - -/* - * Expand a 32 bit message block to 8 bytes, each containing 6 bits. - */ -static void -mexpand(u32bit m, uchar *x) -{ - int i; - u32bit b; - - *x++ = (m & 0x1) << 5 | (m & 0xF8000000) >> 27; - - b = 0x1F800000; - - for (i = 0; i < XKEYLEN - 2; i++) - { - *x++ = (m & b) >> 23 - i * 4; - b >>= 4; - } - - *x++ = (m & 0x1F) << 1 | m >> 31; -} - -/* - * Generate 32 bits from a 32 bit message block, per-round key, - * S boxes and permutation. - */ -static u32bit -mangle(u32bit m, int n) -{ - int i; - uchar xm[XKEYLEN]; - - mexpand(m, xm); - - m = 0; - - for (i = 0; i < XKEYLEN; i++) - { - uchar x; - - x = xm[i] ^ xkey[n][i]; - /* could re-order xm and xk to avoid these shifts */ - x = (x & 0x20) | (x & 0x1E) >> 1 | (x & 0x1) << 4; - /* could expand s to do the permutation */ - m |= sp_bits[i][s[i][x]]; - } - - return m; -} - -/* - * Encrypt/decrypt a DES block. - */ -void -des(void *v, int ed) -{ - uchar *b; - int i; - u32bit l; - u32bit r; - -#ifdef DEBUG - edflag = ed; - round = 0; -#endif - b = (uchar *)v; - -#ifdef DEBUG - log(b); -#endif - - ip(b); - -#ifdef DEBUG - log(b); -#endif - - L_GET(b, l); - R_GET(b, r); - - for (i = 0; i < ROUNDS; i++) - { - u32bit t; - -#ifdef DEBUG - round = ed ? ROUNDS - i : i + 1; -#endif - - t = r; - r = mangle(r, ed ? ROUNDS - i - 1 : i) ^ l; - l = t; -#ifdef DEBUG - L_SET(b, l); R_SET(b, r); log(b); -#endif - } - - /* undo round 16's swap before permuting */ - ip_1(r, l, b); - -#ifdef DEBUG - round++; - log(b); -#endif -} //GO.SYSIN DD des.c echo des.h sed 's/.//' >des.h <<'//GO.SYSIN DD des.h' -#define DESBLOCKLEN 8 -#define DESKEYPLEN 8 - -typedef unsigned char uchar; - -#if __alpha -typedef unsigned int u32bit; -#else -typedef unsigned long u32bit; -#endif - -extern void deskey(void *); -extern void des(void *, int); //GO.SYSIN DD des.h echo test.c sed 's/.//' >test.c <<'//GO.SYSIN DD test.c' -#include "des.h" - -typedef uchar block[DESBLOCKLEN]; -typedef struct test test; - -struct test -{ - block key; - block plain; - block cipher; -}; - -struct test tests[] = -{ - /* 0000000000000000 0000000000000000 8CA64DE9C1B123A7 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x8C, 0xA6, 0x4D, 0xE9, 0xC1, 0xB1, 0x23, 0xA7, - /* FFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFF 7359B2163E4EDC58 */ - 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0x73, 0x59, 0xB2, 0x16, 0x3E, 0x4E, 0xDC, 0x58, - /* 1111111111111111 1111111111111111 F40379AB9E0EC533 */ - 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, - 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, - 0xF4, 0x03, 0x79, 0xAB, 0x9E, 0x0E, 0xC5, 0x33, - /* 0123456789ABCDEF 1111111111111111 17668DFC7292532D */ - 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, - 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, - 0x17, 0x66, 0x8D, 0xFC, 0x72, 0x92, 0x53, 0x2D, - /* 1111111111111111 0123456789ABCDEF 8A5AE1F81AB8F2DD */ - 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, - 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, - 0x8A, 0x5A, 0xE1, 0xF8, 0x1A, 0xB8, 0xF2, 0xDD, - /* 0000000000000000 0000000000000000 8CA64DE9C1B123A7 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x8C, 0xA6, 0x4D, 0xE9, 0xC1, 0xB1, 0x23, 0xA7, - /* 0101010101010101 0123456789ABCDEF 617B3A0CE8F07100 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, - 0x61, 0x7B, 0x3A, 0x0C, 0xE8, 0xF0, 0x71, 0x00, - /* 0000000000000000 FFFFFFFFFFFFFFFF 355550B2150E2451 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0x35, 0x55, 0x50, 0xB2, 0x15, 0x0E, 0x24, 0x51, - /* FFFFFFFFFFFFFFFF 0000000000000000 CAAAAF4DEAF1DBAE */ - 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xCA, 0xAA, 0xAF, 0x4D, 0xEA, 0xF1, 0xDB, 0xAE, - /* 0123456789ABCDEF 0000000000000000 D5D44FF720683D0D */ - 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xD5, 0xD4, 0x4F, 0xF7, 0x20, 0x68, 0x3D, 0x0D, - /* 0101010101010101 95F8A5E5DD31D900 8000000000000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x95, 0xF8, 0xA5, 0xE5, 0xDD, 0x31, 0xD9, 0x00, - 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 20B9E767B2FB1456 0800000000000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x20, 0xB9, 0xE7, 0x67, 0xB2, 0xFB, 0x14, 0x56, - 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 D9031B0271BD5A0A 0080000000000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0xD9, 0x03, 0x1B, 0x02, 0x71, 0xBD, 0x5A, 0x0A, - 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 ADD0CC8D6E5DEBA1 0008000000000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0xAD, 0xD0, 0xCC, 0x8D, 0x6E, 0x5D, 0xEB, 0xA1, - 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 2B9F982F20037FA9 0000800000000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x2B, 0x9F, 0x98, 0x2F, 0x20, 0x03, 0x7F, 0xA9, - 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 E7FCE22557D23C97 0000080000000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0xE7, 0xFC, 0xE2, 0x25, 0x57, 0xD2, 0x3C, 0x97, - 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 750D079407521363 0000008000000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x75, 0x0D, 0x07, 0x94, 0x07, 0x52, 0x13, 0x63, - 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 D106FF0BED5255D7 0000000800000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0xD1, 0x06, 0xFF, 0x0B, 0xED, 0x52, 0x55, 0xD7, - 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, - /* 0101010101010101 E943D7568AEC0C5C 0000000080000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0xE9, 0x43, 0xD7, 0x56, 0x8A, 0xEC, 0x0C, 0x5C, - 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, - /* 0101010101010101 CA3A2B036DBC8502 0000000008000000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0xCA, 0x3A, 0x2B, 0x03, 0x6D, 0xBC, 0x85, 0x02, - 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, - /* 0101010101010101 25EB5FC3F8CF0621 0000000000800000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x25, 0xEB, 0x5F, 0xC3, 0xF8, 0xCF, 0x06, 0x21, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, - /* 0101010101010101 8B54536F2F3E64A8 0000000000080000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x8B, 0x54, 0x53, 0x6F, 0x2F, 0x3E, 0x64, 0xA8, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, - /* 0101010101010101 1029D55E880EC2D0 0000000000008000 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x10, 0x29, 0xD5, 0x5E, 0x88, 0x0E, 0xC2, 0xD0, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, - /* 0101010101010101 8405D1ABE24FB942 0000000000000800 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x84, 0x05, 0xD1, 0xAB, 0xE2, 0x4F, 0xB9, 0x42, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, - /* 0101010101010101 2FBC291A570DB5C4 0000000000000080 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x2F, 0xBC, 0x29, 0x1A, 0x57, 0x0D, 0xB5, 0xC4, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, - /* 0101010101010101 CC083F1E6D9E85F6 0000000000000008 */ - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0xCC, 0x08, 0x3F, 0x1E, 0x6D, 0x9E, 0x85, 0xF6, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, -}; - -static void -log(uchar *b, char *s) -{ - printf("%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x%s", b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7], s); -} - -int -cmp(block b1, block b2) -{ - int i; - - for (i = 0; i < DESBLOCKLEN; i++) - { - if (b1[i] != b2[i]) - return 1; - } - - return 0; -} - -main() -{ - int i; - int ok; - - ok = 1; - - for (i = 0; i < sizeof tests / sizeof tests[0]; i++) - { - deskey(tests[i].key); - - des(tests[i].plain, 0); - - if (cmp(tests[i].plain, tests[i].cipher) != 0) - { - printf("E %2d expected ", i); - log(tests[i].cipher, " encrypted "); - log(tests[i].plain, "\n"); - ok = 0; - } - } - - if (ok) - printf("all ok\n"); - - exit(!ok); -} //GO.SYSIN DD test.c