Drat. Import this into the right place. Pass me the pointy hat.

1 files changed, 143 insertions, 0 deletions

diff --git a/crypto/libdes/qud_cksm.c b/crypto/libdes/qud_cksm.c
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+/* crypto/des/qud_cksm.c */
+/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@mincom.oz.au).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@mincom.oz.au).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@mincom.oz.au)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+/* 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(input, output, length, out_count, seed)
+     des_cblock (*input);
+     des_cblock (*output);
+     long length;
+     int out_count;
+     des_cblock (*seed);
+{
+    DES_LONG z0,z1,t0,t1;
+    int i;
+    long l;
+#ifdef _CRAY
+    typedef struct {
+	unsigned int a:32;
+	unsigned int b:32;
+    } XXX;
+#else
+    typedef DES_LONG XXX;
+#endif
+    unsigned char *cp;
+    XXX *lp;
+
+    if (out_count < 1) out_count=1;
+    lp=(XXX*)output;
+
+    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=(unsigned char *)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 */
+#ifdef _CRAY
+		    lp->a = z0;
+		    lp->b = z1;
+		    lp++;
+#else
+		    *lp++ = (XXX)z0;
+		    *lp++ = (XXX)z1;
+#endif
+		}
+	}
+    return(z0);
+}
+