#ifndef OPENSSL_NO_FP_API
#include <stdio.h> /* FILE */
#endif
-#include <openssl/crypto.h>
#include <openssl/ossl_typ.h>
+#include <openssl/crypto.h>
#ifdef __cplusplus
extern "C" {
#define BN_FLG_MALLOCED 0x01
#define BN_FLG_STATIC_DATA 0x02
-#define BN_FLG_CONSTTIME 0x04 /* avoid leaking exponent information through timing,
- * BN_mod_exp_mont() will call BN_mod_exp_mont_consttime,
- * BN_div() will call BN_div_no_branch,
- * BN_mod_inverse() will call BN_mod_inverse_no_branch.
- */
-#ifndef OPENSSL_NO_DEPRECATED
-#define BN_FLG_EXP_CONSTTIME BN_FLG_CONSTTIME /* deprecated name for the flag */
- /* avoid leaking exponent information through timings
- * (BN_mod_exp_mont() will call BN_mod_exp_mont_consttime) */
+/*
+ * avoid leaking exponent information through timing,
+ * BN_mod_exp_mont() will call BN_mod_exp_mont_consttime,
+ * BN_div() will call BN_div_no_branch,
+ * BN_mod_inverse() will call BN_mod_inverse_no_branch.
+ */
+#define BN_FLG_CONSTTIME 0x04
+
+#ifdef OPENSSL_NO_DEPRECATED
+/* deprecated name for the flag */
+#define BN_FLG_EXP_CONSTTIME BN_FLG_CONSTTIME
+/*
+ * avoid leaking exponent information through timings
+ * (BN_mod_exp_mont() will call BN_mod_exp_mont_consttime)
+ */
#endif
#ifndef OPENSSL_NO_DEPRECATED
BIGNUM N; /* The modulus */
BIGNUM Ni; /* R*(1/R mod N) - N*Ni = 1
* (Ni is only stored for bignum algorithm) */
- BN_ULONG n0[2];/* least significant word(s) of Ni */
+ BN_ULONG n0[2];/* least significant word(s) of Ni;
+ (type changed with 0.9.9, was "BN_ULONG n0;" before) */
int flags;
};
void BN_CTX_end(BN_CTX *ctx);
int BN_rand(BIGNUM *rnd, int bits, int top,int bottom);
int BN_pseudo_rand(BIGNUM *rnd, int bits, int top,int bottom);
-int BN_rand_range(BIGNUM *rnd, BIGNUM *range);
-int BN_pseudo_rand_range(BIGNUM *rnd, BIGNUM *range);
+int BN_rand_range(BIGNUM *rnd, const BIGNUM *range);
+int BN_pseudo_rand_range(BIGNUM *rnd, const BIGNUM *range);
int BN_num_bits(const BIGNUM *a);
int BN_num_bits_word(BN_ULONG);
BIGNUM *BN_new(void);
BIGNUM *BN_mod_sqrt(BIGNUM *ret,
const BIGNUM *a, const BIGNUM *n,BN_CTX *ctx);
+void BN_consttime_swap(BN_ULONG swap, BIGNUM *a, BIGNUM *b, int nwords);
+
/* Deprecated versions */
#ifndef OPENSSL_NO_DEPRECATED
BIGNUM *BN_generate_prime(BIGNUM *ret,int bits,int safe,
int BN_is_prime_fasttest_ex(const BIGNUM *p,int nchecks, BN_CTX *ctx,
int do_trial_division, BN_GENCB *cb);
+int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx);
+
+int BN_X931_derive_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,
+ const BIGNUM *Xp, const BIGNUM *Xp1, const BIGNUM *Xp2,
+ const BIGNUM *e, BN_CTX *ctx, BN_GENCB *cb);
+int BN_X931_generate_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,
+ BIGNUM *Xp1, BIGNUM *Xp2,
+ const BIGNUM *Xp,
+ const BIGNUM *e, BN_CTX *ctx,
+ BN_GENCB *cb);
+
BN_MONT_CTX *BN_MONT_CTX_new(void );
void BN_MONT_CTX_init(BN_MONT_CTX *ctx);
int BN_mod_mul_montgomery(BIGNUM *r,const BIGNUM *a,const BIGNUM *b,
unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
#endif
-void BN_BLINDING_set_thread(BN_BLINDING *);
-int BN_BLINDING_cmp_thread(const BN_BLINDING *, const CRYPTO_THREADID *);
+CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *);
unsigned long BN_BLINDING_get_flags(const BN_BLINDING *);
void BN_BLINDING_set_flags(BN_BLINDING *, unsigned long);
BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
int BN_div_recp(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m,
BN_RECP_CTX *recp, BN_CTX *ctx);
+#ifndef OPENSSL_NO_EC2M
+
/* Functions for arithmetic over binary polynomials represented by BIGNUMs.
*
* The BIGNUM::neg property of BIGNUMs representing binary polynomials is
* be expanded to the appropriate size if needed.
*/
-int BN_GF2m_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b); /*r = a + b*/
+/*r = a + b*/
+int BN_GF2m_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
#define BN_GF2m_sub(r, a, b) BN_GF2m_add(r, a, b)
-int BN_GF2m_mod(BIGNUM *r, const BIGNUM *a, const BIGNUM *p); /*r=a mod p*/
+/*r=a mod p*/
+int BN_GF2m_mod(BIGNUM *r, const BIGNUM *a, const BIGNUM *p);
+/* r = (a * b) mod p */
int BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
- const BIGNUM *p, BN_CTX *ctx); /* r = (a * b) mod p */
+ const BIGNUM *p, BN_CTX *ctx);
+/* r = (a * a) mod p */
int BN_GF2m_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- BN_CTX *ctx); /* r = (a * a) mod p */
+ BN_CTX *ctx);
+/* r = (1 / b) mod p */
int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *b, const BIGNUM *p,
- BN_CTX *ctx); /* r = (1 / b) mod p */
+ BN_CTX *ctx);
+/* r = (a / b) mod p */
int BN_GF2m_mod_div(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
- const BIGNUM *p, BN_CTX *ctx); /* r = (a / b) mod p */
+ const BIGNUM *p, BN_CTX *ctx);
+/* r = (a ^ b) mod p */
int BN_GF2m_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
- const BIGNUM *p, BN_CTX *ctx); /* r = (a ^ b) mod p */
+ const BIGNUM *p, BN_CTX *ctx);
+/* r = sqrt(a) mod p */
int BN_GF2m_mod_sqrt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- BN_CTX *ctx); /* r = sqrt(a) mod p */
+ BN_CTX *ctx);
+/* r^2 + r = a mod p */
int BN_GF2m_mod_solve_quad(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- BN_CTX *ctx); /* r^2 + r = a mod p */
+ BN_CTX *ctx);
#define BN_GF2m_cmp(a, b) BN_ucmp((a), (b))
-/* Some functions allow for representation of the irreducible polynomials
+/*-
+ * Some functions allow for representation of the irreducible polynomials
* as an unsigned int[], say p. The irreducible f(t) is then of the form:
* t^p[0] + t^p[1] + ... + t^p[k]
* where m = p[0] > p[1] > ... > p[k] = 0.
*/
+/* r = a mod p */
int BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const int p[]);
- /* r = a mod p */
+/* r = (a * b) mod p */
int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
- const int p[], BN_CTX *ctx); /* r = (a * b) mod p */
+ const int p[], BN_CTX *ctx);
+/* r = (a * a) mod p */
int BN_GF2m_mod_sqr_arr(BIGNUM *r, const BIGNUM *a, const int p[],
- BN_CTX *ctx); /* r = (a * a) mod p */
+ BN_CTX *ctx);
+/* r = (1 / b) mod p */
int BN_GF2m_mod_inv_arr(BIGNUM *r, const BIGNUM *b, const int p[],
- BN_CTX *ctx); /* r = (1 / b) mod p */
+ BN_CTX *ctx);
+/* r = (a / b) mod p */
int BN_GF2m_mod_div_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
- const int p[], BN_CTX *ctx); /* r = (a / b) mod p */
+ const int p[], BN_CTX *ctx);
+/* r = (a ^ b) mod p */
int BN_GF2m_mod_exp_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
- const int p[], BN_CTX *ctx); /* r = (a ^ b) mod p */
+ const int p[], BN_CTX *ctx);
+/* r = sqrt(a) mod p */
int BN_GF2m_mod_sqrt_arr(BIGNUM *r, const BIGNUM *a,
- const int p[], BN_CTX *ctx); /* r = sqrt(a) mod p */
+ const int p[], BN_CTX *ctx);
+/* r^2 + r = a mod p */
int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a,
- const int p[], BN_CTX *ctx); /* r^2 + r = a mod p */
+ const int p[], BN_CTX *ctx);
int BN_GF2m_poly2arr(const BIGNUM *a, int p[], int max);
int BN_GF2m_arr2poly(const int p[], BIGNUM *a);
+#endif
+
/* faster mod functions for the 'NIST primes'
* 0 <= a < p^2 */
int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
BIGNUM *bn_dup_expand(const BIGNUM *a, int words); /* unused */
#endif
-/* Bignum consistency macros
+/*-
+ * Bignum consistency macros
* There is one "API" macro, bn_fix_top(), for stripping leading zeroes from
* bignum data after direct manipulations on the data. There is also an
* "internal" macro, bn_check_top(), for verifying that there are no leading
#define bn_fix_top(a) bn_check_top(a)
+#define bn_check_size(bn, bits) bn_wcheck_size(bn, ((bits+BN_BITS2-1))/BN_BITS2)
+#define bn_wcheck_size(bn, words) \
+ do { \
+ const BIGNUM *_bnum2 = (bn); \
+ assert((words) <= (_bnum2)->dmax && (words) >= (_bnum2)->top); \
+ /* avoid unused variable warning with NDEBUG */ \
+ (void)(_bnum2); \
+ } while(0)
+
#else /* !BN_DEBUG */
#define bn_pollute(a)
#define bn_check_top(a)
#define bn_fix_top(a) bn_correct_top(a)
+#define bn_check_size(bn, bits)
+#define bn_wcheck_size(bn, words)
#endif
#define bn_correct_top(a) \
{ \
BN_ULONG *ftl; \
- if ((a)->top > 0) \
+ int tmp_top = (a)->top; \
+ if (tmp_top > 0) \
{ \
- for (ftl= &((a)->d[(a)->top-1]); (a)->top > 0; (a)->top--) \
- if (*(ftl--)) break; \
+ for (ftl= &((a)->d[tmp_top-1]); tmp_top > 0; tmp_top--) \
+ if (*(ftl--)) break; \
+ (a)->top = tmp_top; \
} \
bn_pollute(a); \
}
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