diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/des/qud_cksm.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/des/qud_cksm.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/Cryptlib/OpenSSL/crypto/des/qud_cksm.c b/Cryptlib/OpenSSL/crypto/des/qud_cksm.c deleted file mode 100644 index 8710ceca..00000000 --- a/Cryptlib/OpenSSL/crypto/des/qud_cksm.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the OpenSSL license (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -/* - * From "Message Authentication" R.R. Jueneman, S.M. Matyas, C.H. Meyer IEEE - * Communications Magazine Sept 1985 Vol. 23 No. 9 p 29-40 This module in - * only based on the code in this paper and is almost definitely not the same - * as the MIT implementation. - */ -#include "des_locl.h" - -/* bug fix for dos - 7/6/91 - Larry hughes@logos.ucs.indiana.edu */ -#define Q_B0(a) (((DES_LONG)(a))) -#define Q_B1(a) (((DES_LONG)(a))<<8) -#define Q_B2(a) (((DES_LONG)(a))<<16) -#define Q_B3(a) (((DES_LONG)(a))<<24) - -/* used to scramble things a bit */ -/* Got the value MIT uses via brute force :-) 2/10/90 eay */ -#define NOISE ((DES_LONG)83653421L) - -DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[], - long length, int out_count, DES_cblock *seed) -{ - DES_LONG z0, z1, t0, t1; - int i; - long l; - const unsigned char *cp; - DES_LONG *lp; - - if (out_count < 1) - out_count = 1; - lp = (DES_LONG *)&(output[0])[0]; - - z0 = Q_B0((*seed)[0]) | Q_B1((*seed)[1]) | Q_B2((*seed)[2]) | - Q_B3((*seed)[3]); - z1 = Q_B0((*seed)[4]) | Q_B1((*seed)[5]) | Q_B2((*seed)[6]) | - Q_B3((*seed)[7]); - - for (i = 0; ((i < 4) && (i < out_count)); i++) { - cp = input; - l = length; - while (l > 0) { - if (l > 1) { - t0 = (DES_LONG)(*(cp++)); - t0 |= (DES_LONG)Q_B1(*(cp++)); - l--; - } else - t0 = (DES_LONG)(*(cp++)); - l--; - /* add */ - t0 += z0; - t0 &= 0xffffffffL; - t1 = z1; - /* square, well sort of square */ - z0 = ((((t0 * t0) & 0xffffffffL) + ((t1 * t1) & 0xffffffffL)) - & 0xffffffffL) % 0x7fffffffL; - z1 = ((t0 * ((t1 + NOISE) & 0xffffffffL)) & 0xffffffffL) % - 0x7fffffffL; - } - if (lp != NULL) { - /* - * The MIT library assumes that the checksum is composed of - * 2*out_count 32 bit ints - */ - *lp++ = z0; - *lp++ = z1; - } - } - return (z0); -} |
