/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _BIGNUM_H #define _BIGNUM_H #pragma ident "%Z%%M% %I% %E% SMI" #ifdef __cplusplus extern "C" { #endif #include <sys/types.h> typedef int BIG_ERR_CODE; /* * leading 0's are permitted * 0 should be represented by size>=1, size>=len>=1, sign=1, * value[i]=0 for 0<i<len */ typedef struct { int size; /* the size of memory allocated for value (in words) */ int len; /* the number of words that hold valid data in value */ int sign; /* 1 for nonnegative, -1 for negative */ int malloced; /* 1 if value was malloced 0 if not */ uint32_t *value; } BIGNUM; #define BIGTMPSIZE 65 #define BIG_TRUE 1 #define BIG_FALSE 0 /* error codes */ #define BIG_OK 0 #define BIG_NO_MEM -1 #define BIG_INVALID_ARGS -2 #define BIG_DIV_BY_0 -3 #define BIG_NO_RANDOM -4 #define BIG_GENERAL_ERR -5 #define arraysize(x) (sizeof (x) / sizeof (x[0])) #ifdef USE_FLOATING_POINT void conv_d16_to_i32(uint32_t *i32, double *d16, int64_t *tmp, int ilen); void conv_i32_to_d32(double *d32, uint32_t *i32, int len); void conv_i32_to_d16(double *d16, uint32_t *i32, int len); void conv_i32_to_d32_and_d16(double *d32, double *d16, uint32_t *i32, int len); void mont_mulf_noconv(uint32_t *result, double *dm1, double *dm2, double *dt, double *dn, uint32_t *nint, int nlen, double dn0); #endif /* USE_FLOATING_POINT */ void printbignum(char *aname, BIGNUM *a); BIG_ERR_CODE big_init(BIGNUM *number, int size); BIG_ERR_CODE big_extend(BIGNUM *number, int size); void big_finish(BIGNUM *number); void bytestring2bignum(BIGNUM *bn, uchar_t *kn, size_t len); void bignum2bytestring(uchar_t *kn, BIGNUM *bn, size_t len); BIG_ERR_CODE big_mont_rr(BIGNUM *result, BIGNUM *n); BIG_ERR_CODE big_modexp(BIGNUM *result, BIGNUM *a, BIGNUM *e, BIGNUM *n, BIGNUM *n_rr); BIG_ERR_CODE big_modexp_crt(BIGNUM *result, BIGNUM *a, BIGNUM *dmodpminus1, BIGNUM *dmodqminus1, BIGNUM *p, BIGNUM *q, BIGNUM *pinvmodq, BIGNUM *p_rr, BIGNUM *q_rr); int big_cmp_abs(BIGNUM *a, BIGNUM *b); BIG_ERR_CODE randombignum(BIGNUM *r, int length); BIG_ERR_CODE big_div_pos(BIGNUM *result, BIGNUM *remainder, BIGNUM *aa, BIGNUM *bb); BIG_ERR_CODE big_ext_gcd_pos(BIGNUM *gcd, BIGNUM *cm, BIGNUM *ce, BIGNUM *m, BIGNUM *e); BIG_ERR_CODE big_add(BIGNUM *result, BIGNUM *aa, BIGNUM *bb); BIG_ERR_CODE big_mul(BIGNUM *result, BIGNUM *aa, BIGNUM *bb); BIG_ERR_CODE big_nextprime_pos(BIGNUM *result, BIGNUM *n); BIG_ERR_CODE big_sub_pos(BIGNUM *result, BIGNUM *aa, BIGNUM *bb); BIG_ERR_CODE big_copy(BIGNUM *dest, BIGNUM *src); BIG_ERR_CODE big_sub(BIGNUM *result, BIGNUM *aa, BIGNUM *bb); int big_bitlength(BIGNUM *n); BIG_ERR_CODE big_init1(BIGNUM *number, int size, uint32_t *buf, int bufsize); #if defined(HWCAP) #define BIG_MUL_SET_VEC(r, a, len, digit) \ (*big_mul_set_vec_impl)(r, a, len, digit) #define BIG_MUL_ADD_VEC(r, a, len, digit) \ (*big_mul_add_vec_impl)(r, a, len, digit) #define BIG_MUL_VEC(r, a, alen, b, blen) \ (*big_mul_vec_impl)(r, a, alen, b, blen) #define BIG_SQR_VEC(r, a, len) \ (*big_sqr_vec_impl)(r, a, len) extern uint32_t (*big_mul_set_vec_impl) (uint32_t *r, uint32_t *a, int len, uint32_t digit); extern uint32_t (*big_mul_add_vec_impl) (uint32_t *r, uint32_t *a, int len, uint32_t digit); extern void (*big_mul_vec_impl) (uint32_t *r, uint32_t *a, int alen, uint32_t *b, int blen); extern void (*big_sqr_vec_impl) (uint32_t *r, uint32_t *a, int len); #else /* ! HWCAP */ #define BIG_MUL_SET_VEC(r, a, len, digit) big_mul_set_vec(r, a, len, digit) #define BIG_MUL_ADD_VEC(r, a, len, digit) big_mul_add_vec(r, a, len, digit) #define BIG_MUL_VEC(r, a, alen, b, blen) big_mul_vec(r, a, alen, b, blen) #define BIG_SQR_VEC(r, a, len) big_sqr_vec(r, a, len) extern uint32_t big_mul_set_vec(uint32_t *r, uint32_t *a, int len, uint32_t d); extern uint32_t big_mul_add_vec(uint32_t *r, uint32_t *a, int len, uint32_t d); extern void big_mul_vec(uint32_t *r, uint32_t *a, int alen, uint32_t *b, int blen); extern void big_sqr_vec(uint32_t *r, uint32_t *a, int len); #endif /* HWCAP */ #ifdef __cplusplus } #endif #endif /* _BIGNUM_H */