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authorKris Kennaway <kris@FreeBSD.org>2000-01-10 06:22:05 +0000
committerKris Kennaway <kris@FreeBSD.org>2000-01-10 06:22:05 +0000
commit74664626283603849f4acbd49e8c8288c08cff4d (patch)
treeb5683ff3d44c93978826763313683673904c6bd9 /crypto/openssl/crypto/bn/bn_lcl.h
parentf5952845872443119d7617dd3ef63397853419c1 (diff)
downloadsrc-74664626283603849f4acbd49e8c8288c08cff4d.tar.gz
src-74664626283603849f4acbd49e8c8288c08cff4d.zip
Initial import of OpenSSL 0.9.4, sans IDEA and RSA code for patent
infringement reasons.
Notes
Notes: svn path=/vendor-crypto/openssl/dist/; revision=55714
Diffstat (limited to 'crypto/openssl/crypto/bn/bn_lcl.h')
-rw-r--r--crypto/openssl/crypto/bn/bn_lcl.h268
1 files changed, 268 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/bn/bn_lcl.h b/crypto/openssl/crypto/bn/bn_lcl.h
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index 000000000000..85a372695b9c
--- /dev/null
+++ b/crypto/openssl/crypto/bn/bn_lcl.h
@@ -0,0 +1,268 @@
+/* crypto/bn/bn_lcl.h */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * 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@cryptsoft.com).
+ *
+ * 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@cryptsoft.com)"
+ * 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@cryptsoft.com)"
+ *
+ * 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.]
+ */
+
+#ifndef HEADER_BN_LCL_H
+#define HEADER_BN_LCL_H
+
+#include <openssl/bn.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Pentium pro 16,16,16,32,64 */
+/* Alpha 16,16,16,16.64 */
+#define BN_MULL_SIZE_NORMAL (16) /* 32 */
+#define BN_MUL_RECURSIVE_SIZE_NORMAL (16) /* 32 less than */
+#define BN_SQR_RECURSIVE_SIZE_NORMAL (16) /* 32 */
+#define BN_MUL_LOW_RECURSIVE_SIZE_NORMAL (32) /* 32 */
+#define BN_MONT_CTX_SET_SIZE_WORD (64) /* 32 */
+
+#if 0
+#ifndef BN_MUL_COMBA
+/* #define bn_mul_comba8(r,a,b) bn_mul_normal(r,a,8,b,8) */
+/* #define bn_mul_comba4(r,a,b) bn_mul_normal(r,a,4,b,4) */
+#endif
+
+#ifndef BN_SQR_COMBA
+/* This is probably faster than using the C code - I need to check */
+#define bn_sqr_comba8(r,a) bn_mul_normal(r,a,8,a,8)
+#define bn_sqr_comba4(r,a) bn_mul_normal(r,a,4,a,4)
+#endif
+#endif
+
+/*************************************************************
+ * Using the long long type
+ */
+#define Lw(t) (((BN_ULONG)(t))&BN_MASK2)
+#define Hw(t) (((BN_ULONG)((t)>>BN_BITS2))&BN_MASK2)
+
+/* These are used for internal error checking and are not normally used */
+#ifdef BN_DEBUG
+#define bn_check_top(a) \
+ { if (((a)->top < 0) || ((a)->top > (a)->max)) \
+ { char *nullp=NULL; *nullp='z'; } }
+#define bn_check_num(a) if ((a) < 0) { char *nullp=NULL; *nullp='z'; }
+#else
+#define bn_check_top(a)
+#define bn_check_num(a)
+#endif
+
+/* This macro is to add extra stuff for development checking */
+#ifdef BN_DEBUG
+#define bn_set_max(r) ((r)->max=(r)->top,BN_set_flags((r),BN_FLG_STATIC_DATA))
+#else
+#define bn_set_max(r)
+#endif
+
+/* These macros are used to 'take' a section of a bignum for read only use */
+#define bn_set_low(r,a,n) \
+ { \
+ (r)->top=((a)->top > (n))?(n):(a)->top; \
+ (r)->d=(a)->d; \
+ (r)->neg=(a)->neg; \
+ (r)->flags|=BN_FLG_STATIC_DATA; \
+ bn_set_max(r); \
+ }
+
+#define bn_set_high(r,a,n) \
+ { \
+ if ((a)->top > (n)) \
+ { \
+ (r)->top=(a)->top-n; \
+ (r)->d= &((a)->d[n]); \
+ } \
+ else \
+ (r)->top=0; \
+ (r)->neg=(a)->neg; \
+ (r)->flags|=BN_FLG_STATIC_DATA; \
+ bn_set_max(r); \
+ }
+
+/* #define bn_expand(n,b) ((((b)/BN_BITS2) <= (n)->max)?(n):bn_expand2((n),(b))) */
+
+#ifdef BN_LLONG
+#define mul_add(r,a,w,c) { \
+ BN_ULLONG t; \
+ t=(BN_ULLONG)w * (a) + (r) + (c); \
+ (r)= Lw(t); \
+ (c)= Hw(t); \
+ }
+
+#define mul(r,a,w,c) { \
+ BN_ULLONG t; \
+ t=(BN_ULLONG)w * (a) + (c); \
+ (r)= Lw(t); \
+ (c)= Hw(t); \
+ }
+
+#else
+/*************************************************************
+ * No long long type
+ */
+
+#define LBITS(a) ((a)&BN_MASK2l)
+#define HBITS(a) (((a)>>BN_BITS4)&BN_MASK2l)
+#define L2HBITS(a) ((BN_ULONG)((a)&BN_MASK2l)<<BN_BITS4)
+
+#define LLBITS(a) ((a)&BN_MASKl)
+#define LHBITS(a) (((a)>>BN_BITS2)&BN_MASKl)
+#define LL2HBITS(a) ((BN_ULLONG)((a)&BN_MASKl)<<BN_BITS2)
+
+#define mul64(l,h,bl,bh) \
+ { \
+ BN_ULONG m,m1,lt,ht; \
+ \
+ lt=l; \
+ ht=h; \
+ m =(bh)*(lt); \
+ lt=(bl)*(lt); \
+ m1=(bl)*(ht); \
+ ht =(bh)*(ht); \
+ m=(m+m1)&BN_MASK2; if (m < m1) ht+=L2HBITS(1L); \
+ ht+=HBITS(m); \
+ m1=L2HBITS(m); \
+ lt=(lt+m1)&BN_MASK2; if (lt < m1) ht++; \
+ (l)=lt; \
+ (h)=ht; \
+ }
+
+#define sqr64(lo,ho,in) \
+ { \
+ BN_ULONG l,h,m; \
+ \
+ h=(in); \
+ l=LBITS(h); \
+ h=HBITS(h); \
+ m =(l)*(h); \
+ l*=l; \
+ h*=h; \
+ h+=(m&BN_MASK2h1)>>(BN_BITS4-1); \
+ m =(m&BN_MASK2l)<<(BN_BITS4+1); \
+ l=(l+m)&BN_MASK2; if (l < m) h++; \
+ (lo)=l; \
+ (ho)=h; \
+ }
+
+#define mul_add(r,a,bl,bh,c) { \
+ BN_ULONG l,h; \
+ \
+ h= (a); \
+ l=LBITS(h); \
+ h=HBITS(h); \
+ mul64(l,h,(bl),(bh)); \
+ \
+ /* non-multiply part */ \
+ l=(l+(c))&BN_MASK2; if (l < (c)) h++; \
+ (c)=(r); \
+ l=(l+(c))&BN_MASK2; if (l < (c)) h++; \
+ (c)=h&BN_MASK2; \
+ (r)=l; \
+ }
+
+#define mul(r,a,bl,bh,c) { \
+ BN_ULONG l,h; \
+ \
+ h= (a); \
+ l=LBITS(h); \
+ h=HBITS(h); \
+ mul64(l,h,(bl),(bh)); \
+ \
+ /* non-multiply part */ \
+ l+=(c); if ((l&BN_MASK2) < (c)) h++; \
+ (c)=h&BN_MASK2; \
+ (r)=l&BN_MASK2; \
+ }
+
+#endif
+
+OPENSSL_EXTERN int bn_limit_bits;
+OPENSSL_EXTERN int bn_limit_num; /* (1<<bn_limit_bits) */
+/* Recursive 'low' limit */
+OPENSSL_EXTERN int bn_limit_bits_low;
+OPENSSL_EXTERN int bn_limit_num_low; /* (1<<bn_limit_bits_low) */
+/* Do modified 'high' part calculation' */
+OPENSSL_EXTERN int bn_limit_bits_high;
+OPENSSL_EXTERN int bn_limit_num_high; /* (1<<bn_limit_bits_high) */
+OPENSSL_EXTERN int bn_limit_bits_mont;
+OPENSSL_EXTERN int bn_limit_num_mont; /* (1<<bn_limit_bits_mont) */
+
+BIGNUM *bn_expand2(BIGNUM *b, int bits);
+
+void bn_mul_normal(BN_ULONG *r,BN_ULONG *a,int na,BN_ULONG *b,int nb);
+void bn_mul_comba8(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b);
+void bn_mul_comba4(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b);
+void bn_sqr_normal(BN_ULONG *r, BN_ULONG *a, int n, BN_ULONG *tmp);
+void bn_sqr_comba8(BN_ULONG *r,BN_ULONG *a);
+void bn_sqr_comba4(BN_ULONG *r,BN_ULONG *a);
+int bn_cmp_words(BN_ULONG *a,BN_ULONG *b,int n);
+void bn_mul_recursive(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,int n2,BN_ULONG *t);
+void bn_mul_part_recursive(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,
+ int tn, int n,BN_ULONG *t);
+void bn_sqr_recursive(BN_ULONG *r,BN_ULONG *a, int n2, BN_ULONG *t);
+void bn_mul_low_normal(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b, int n);
+void bn_mul_low_recursive(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,int n2,
+ BN_ULONG *t);
+void bn_mul_high(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,BN_ULONG *l,int n2,
+ BN_ULONG *t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif