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Diffstat (limited to 'src/lib/crypto/des/make_p.c')
-rw-r--r-- | src/lib/crypto/des/make_p.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/src/lib/crypto/des/make_p.c b/src/lib/crypto/des/make_p.c deleted file mode 100644 index 0446c9c6f..000000000 --- a/src/lib/crypto/des/make_p.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * lib/crypto/des/make_p.c - * - * Copyright 1985, 1988,1990 by the Massachusetts Institute of Technology. - * All Rights Reserved. - * - * Export of this software from the United States of America may - * require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - * - * - * This routine generates the P permutation code for the DES. - */ - - -#include <krb5/krb5.h> -#include <stdio.h> -#include "des_int.h" -#include "tables.h" - -void gen(stream) - FILE *stream; -{ - /* P permutes 32 bit input R1 into 32 bit output R2 */ - - /* clear the output */ - fprintf(stream," L2 = 0;\n"); -#ifndef BIG - fprintf(stream," R2 = 0;\n"); - fprintf(stream, - "/* P operations */\n/* from right to right */\n"); - /* first list mapping from left to left */ - for (i = 0; i <=31; i++) - if (P[i] < 32) - fprintf(stream, - " if (R1 & (1<<%d)) R2 |= 1<<%d;\n",P[i],i); -#else /* BIG */ - /* flip p into p_temp */ - fprintf(stream," P_temp = R1;\n"); - fprintf(stream," P_temp_p = (unsigned char *) &P_temp;\n"); - -#ifdef LSBFIRST - fprintf(stream," R2 = P_prime[0][*P_temp_p++];\n"); - fprintf(stream," R2 |= P_prime[1][*P_temp_p++];\n"); - fprintf(stream," R2 |= P_prime[2][*P_temp_p++];\n"); - fprintf(stream," R2 |= P_prime[3][*P_temp_p];\n"); -#else /* MSBFIRST */ - fprintf(stream," R2 = P_prime[3][*P_temp_p++];\n"); - fprintf(stream," R2 |= P_prime[2][*P_temp_p++];\n"); - fprintf(stream," R2 |= P_prime[1][*P_temp_p++];\n"); - fprintf(stream," R2 |= P_prime[0][*P_temp_p];\n"); -#endif /* MSBFIRST */ -#endif /* BIG */ -} |