local ffi = require'ffi'
--[[
// csrc/openssl/src/include/openssl/bn.h
enum {
	BN_ULONG             = unsigned long long,
	BN_BYTES             = 8,
	BN_BITS2             = (BN_BYTES * 8),
	BN_BITS              = (BN_BITS2 * 2),
	BN_TBIT              = ((BN_ULONG)1 << (BN_BITS2 - 1)),
	BN_FLG_MALLOCED      = 0x01,
	BN_FLG_STATIC_DATA   = 0x02,
	BN_FLG_CONSTTIME     = 0x04,
	BN_FLG_SECURE        = 0x08,
	BN_FLG_EXP_CONSTTIME = BN_FLG_CONSTTIME,
	BN_FLG_FREE          = 0x8000,
};
void BN_set_flags(BIGNUM *b, int n);
int BN_get_flags(const BIGNUM *b, int n);
enum {
	BN_RAND_TOP_ANY      = -1,
	BN_RAND_TOP_ONE      = 0,
	BN_RAND_TOP_TWO      = 1,
	BN_RAND_BOTTOM_ANY   = 0,
	BN_RAND_BOTTOM_ODD   = 1,
};
void BN_with_flags(BIGNUM *dest, const BIGNUM *b, int flags);
int BN_GENCB_call(BN_GENCB *cb, int a, int b);
BN_GENCB *BN_GENCB_new(void);
void BN_GENCB_free(BN_GENCB *cb);
void BN_GENCB_set_old(BN_GENCB *gencb, void (*callback) (int, int, void *),
                      void *cb_arg);
void BN_GENCB_set(BN_GENCB *gencb, int (*callback) (int, int, BN_GENCB *),
                  void *cb_arg);
void *BN_GENCB_get_arg(BN_GENCB *cb);
enum {
	BN_prime_checks      = 0,
};
#define BN_prime_checks_for_size(b) ((b) >= 3747 ? 3 : (b) >= 1345 ? 4 : (b) >= 476 ? 5 : (b) >= 400 ? 6 : (b) >= 347 ? 7 : (b) >= 308 ? 8 : (b) >= 55 ? 27 : 34)
#define BN_num_bytes(a) ((BN_num_bits(a)+7)/8)
int BN_abs_is_word(const BIGNUM *a, const unsigned long long w);
int BN_is_zero(const BIGNUM *a);
int BN_is_one(const BIGNUM *a);
int BN_is_word(const BIGNUM *a, const unsigned long long w);
int BN_is_odd(const BIGNUM *a);
#define BN_one(a) (BN_set_word((a),1))
void BN_zero_ex(BIGNUM *a);
#define BN_zero(a) (BN_set_word((a),0))
const BIGNUM *BN_value_one(void);
char *BN_options(void);
BN_CTX *BN_CTX_new(void);
BN_CTX *BN_CTX_secure_new(void);
void BN_CTX_free(BN_CTX *c);
void BN_CTX_start(BN_CTX *ctx);
BIGNUM *BN_CTX_get(BN_CTX *ctx);
void BN_CTX_end(BN_CTX *ctx);
int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_priv_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_rand_range(BIGNUM *rnd, const BIGNUM *range);
int BN_priv_rand_range(BIGNUM *rnd, const BIGNUM *range);
int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_pseudo_rand_range(BIGNUM *rnd, const BIGNUM *range);
int BN_num_bits(const BIGNUM *a);
int BN_num_bits_word(unsigned long long l);
int BN_security_bits(int L, int N);
BIGNUM *BN_new(void);
BIGNUM *BN_secure_new(void);
void BN_clear_free(BIGNUM *a);
BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
void BN_swap(BIGNUM *a, BIGNUM *b);
BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret);
int BN_bn2bin(const BIGNUM *a, unsigned char *to);
int BN_bn2binpad(const BIGNUM *a, unsigned char *to, int tolen);
BIGNUM *BN_lebin2bn(const unsigned char *s, int len, BIGNUM *ret);
int BN_bn2lebinpad(const BIGNUM *a, unsigned char *to, int tolen);
BIGNUM *BN_mpi2bn(const unsigned char *s, int len, BIGNUM *ret);
int BN_bn2mpi(const BIGNUM *a, unsigned char *to);
int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
void BN_set_negative(BIGNUM *b, int n);
int BN_is_negative(const BIGNUM *b);
int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
           BN_CTX *ctx);
#define BN_mod(rem,m,d,ctx) BN_div(NULL,(rem),(m),(d),(ctx))
int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx);
int BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
               BN_CTX *ctx);
int BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                     const BIGNUM *m);
int BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
               BN_CTX *ctx);
int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                     const BIGNUM *m);
int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
               BN_CTX *ctx);
int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
int BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m);
int BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m,
                  BN_CTX *ctx);
int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m);
unsigned long long BN_mod_word(const BIGNUM *a, unsigned long long w);
unsigned long long BN_div_word(BIGNUM *a, unsigned long long w);
int BN_mul_word(BIGNUM *a, unsigned long long w);
int BN_add_word(BIGNUM *a, unsigned long long w);
int BN_sub_word(BIGNUM *a, unsigned long long w);
int BN_set_word(BIGNUM *a, unsigned long long w);
unsigned long long BN_get_word(const BIGNUM *a);
int BN_cmp(const BIGNUM *a, const BIGNUM *b);
void BN_free(BIGNUM *a);
int BN_is_bit_set(const BIGNUM *a, int n);
int BN_lshift(BIGNUM *r, const BIGNUM *a, int n);
int BN_lshift1(BIGNUM *r, const BIGNUM *a);
int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
               const BIGNUM *m, BN_CTX *ctx);
int BN_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
                    const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
                              const BIGNUM *m, BN_CTX *ctx,
                              BN_MONT_CTX *in_mont);
int BN_mod_exp_mont_word(BIGNUM *r, unsigned long long a, const BIGNUM *p,
                         const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
int BN_mod_exp2_mont(BIGNUM *r, const BIGNUM *a1, const BIGNUM *p1,
                     const BIGNUM *a2, const BIGNUM *p2, const BIGNUM *m,
                     BN_CTX *ctx, BN_MONT_CTX *m_ctx);
int BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
                      const BIGNUM *m, BN_CTX *ctx);
int BN_mask_bits(BIGNUM *a, int n);
int BN_print_fp(FILE *fp, const BIGNUM *a);
int BN_print(BIO *bio, const BIGNUM *a);
int BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx);
int BN_rshift(BIGNUM *r, const BIGNUM *a, int n);
int BN_rshift1(BIGNUM *r, const BIGNUM *a);
void BN_clear(BIGNUM *a);
BIGNUM *BN_dup(const BIGNUM *a);
int BN_ucmp(const BIGNUM *a, const BIGNUM *b);
int BN_set_bit(BIGNUM *a, int n);
int BN_clear_bit(BIGNUM *a, int n);
char *BN_bn2hex(const BIGNUM *a);
char *BN_bn2dec(const BIGNUM *a);
int BN_hex2bn(BIGNUM **a, const char *str);
int BN_dec2bn(BIGNUM **a, const char *str);
int BN_asc2bn(BIGNUM **a, const char *str);
int BN_gcd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
int BN_kronecker(const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
BIGNUM *BN_mod_inverse(BIGNUM *ret,
                       const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
BIGNUM *BN_mod_sqrt(BIGNUM *ret,
                    const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
void BN_consttime_swap(unsigned long long swap, BIGNUM *a, BIGNUM *b, int nwords);
BIGNUM *BN_generate_prime(BIGNUM *ret, int bits, int safe, const BIGNUM *add, const BIGNUM *rem, void (*callback) (int, int, void *), void *cb_arg) __attribute__ ((deprecated));
int BN_is_prime(const BIGNUM *p, int nchecks, void (*callback) (int, int, void *), BN_CTX *ctx, void *cb_arg) __attribute__ ((deprecated));
int BN_is_prime_fasttest(const BIGNUM *p, int nchecks, void (*callback) (int, int, void *), BN_CTX *ctx, void *cb_arg, int do_trial_division) __attribute__ ((deprecated));
int BN_generate_prime_ex(BIGNUM *ret, int bits, int safe, const BIGNUM *add,
                         const BIGNUM *rem, BN_GENCB *cb);
int BN_is_prime_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx, BN_GENCB *cb);
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);
int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                          BN_MONT_CTX *mont, BN_CTX *ctx);
int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
                     BN_CTX *ctx);
int BN_from_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
                       BN_CTX *ctx);
void BN_MONT_CTX_free(BN_MONT_CTX *mont);
int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx);
BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to, BN_MONT_CTX *from);
BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock,
                                    const BIGNUM *mod, BN_CTX *ctx);
enum {
	BN_BLINDING_NO_UPDATE = 0x00000001,
	BN_BLINDING_NO_RECREATE = 0x00000002,
};
BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod);
void BN_BLINDING_free(BN_BLINDING *b);
int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *);
int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b,
                          BN_CTX *);
int BN_BLINDING_is_current_thread(BN_BLINDING *b);
void BN_BLINDING_set_current_thread(BN_BLINDING *b);
int BN_BLINDING_lock(BN_BLINDING *b);
int BN_BLINDING_unlock(BN_BLINDING *b);
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,
                                      const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
                                      int (*bn_mod_exp) (BIGNUM *r,
                                                         const BIGNUM *a,
                                                         const BIGNUM *p,
                                                         const BIGNUM *m,
                                                         BN_CTX *ctx,
                                                         BN_MONT_CTX *m_ctx),
                                      BN_MONT_CTX *m_ctx);
void BN_set_params(int mul, int high, int low, int mont) __attribute__ ((deprecated));
int BN_get_params(int which) __attribute__ ((deprecated));
BN_RECP_CTX *BN_RECP_CTX_new(void);
void BN_RECP_CTX_free(BN_RECP_CTX *recp);
int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *rdiv, BN_CTX *ctx);
int BN_mod_mul_reciprocal(BIGNUM *r, const BIGNUM *x, const BIGNUM *y,
                          BN_RECP_CTX *recp, BN_CTX *ctx);
int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
                    const BIGNUM *m, BN_CTX *ctx);
int BN_div_recp(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m,
                BN_RECP_CTX *recp, BN_CTX *ctx);
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);
int BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                    const BIGNUM *p, BN_CTX *ctx);
int BN_GF2m_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *b, const BIGNUM *p, BN_CTX *ctx);
int BN_GF2m_mod_div(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                    const BIGNUM *p, BN_CTX *ctx);
int BN_GF2m_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                    const BIGNUM *p, BN_CTX *ctx);
int BN_GF2m_mod_sqrt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
                     BN_CTX *ctx);
int BN_GF2m_mod_solve_quad(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
                           BN_CTX *ctx);
#define BN_GF2m_cmp(a,b) BN_ucmp((a), (b))
int BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const int p[]);
int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                        const int p[], BN_CTX *ctx);
int BN_GF2m_mod_sqr_arr(BIGNUM *r, const BIGNUM *a, const int p[],
                        BN_CTX *ctx);
int BN_GF2m_mod_inv_arr(BIGNUM *r, const BIGNUM *b, const int p[],
                        BN_CTX *ctx);
int BN_GF2m_mod_div_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                        const int p[], BN_CTX *ctx);
int BN_GF2m_mod_exp_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
                        const int p[], BN_CTX *ctx);
int BN_GF2m_mod_sqrt_arr(BIGNUM *r, const BIGNUM *a,
                         const int p[], BN_CTX *ctx);
int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a,
                               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);
int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
const BIGNUM *BN_get0_nist_prime_192(void);
const BIGNUM *BN_get0_nist_prime_224(void);
const BIGNUM *BN_get0_nist_prime_256(void);
const BIGNUM *BN_get0_nist_prime_384(void);
const BIGNUM *BN_get0_nist_prime_521(void);
int (*BN_nist_mod_func(const BIGNUM *p)) (BIGNUM *r, const BIGNUM *a,
                                          const BIGNUM *field, BN_CTX *ctx);
int BN_generate_dsa_nonce(BIGNUM *out, const BIGNUM *range,
                          const BIGNUM *priv, const unsigned char *message,
                          size_t message_len, BN_CTX *ctx);
BIGNUM *BN_get_rfc2409_prime_768(BIGNUM *bn);
BIGNUM *BN_get_rfc2409_prime_1024(BIGNUM *bn);
BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *bn);
BIGNUM *BN_get_rfc3526_prime_2048(BIGNUM *bn);
BIGNUM *BN_get_rfc3526_prime_3072(BIGNUM *bn);
BIGNUM *BN_get_rfc3526_prime_4096(BIGNUM *bn);
BIGNUM *BN_get_rfc3526_prime_6144(BIGNUM *bn);
BIGNUM *BN_get_rfc3526_prime_8192(BIGNUM *bn);
enum {
	get_rfc2409_prime_768 = BN_get_rfc2409_prime_768,
	get_rfc2409_prime_1024 = BN_get_rfc2409_prime_1024,
	get_rfc3526_prime_1536 = BN_get_rfc3526_prime_1536,
	get_rfc3526_prime_2048 = BN_get_rfc3526_prime_2048,
	get_rfc3526_prime_3072 = BN_get_rfc3526_prime_3072,
	get_rfc3526_prime_4096 = BN_get_rfc3526_prime_4096,
	get_rfc3526_prime_6144 = BN_get_rfc3526_prime_6144,
	get_rfc3526_prime_8192 = BN_get_rfc3526_prime_8192,
};
int BN_bntest_rand(BIGNUM *rnd, int bits, int top, int bottom);

// csrc/openssl/src/include/openssl/bnerr.h
int ERR_load_BN_strings(void);
enum {
	BN_F_BNRAND          = 127,
	BN_F_BNRAND_RANGE    = 138,
	BN_F_BN_BLINDING_CONVERT_EX = 100,
	BN_F_BN_BLINDING_CREATE_PARAM = 128,
	BN_F_BN_BLINDING_INVERT_EX = 101,
	BN_F_BN_BLINDING_NEW = 102,
	BN_F_BN_BLINDING_UPDATE = 103,
	BN_F_BN_BN2DEC       = 104,
	BN_F_BN_BN2HEX       = 105,
	BN_F_BN_COMPUTE_WNAF = 142,
	BN_F_BN_CTX_GET      = 116,
	BN_F_BN_CTX_NEW      = 106,
	BN_F_BN_CTX_START    = 129,
	BN_F_BN_DIV          = 107,
	BN_F_BN_DIV_RECP     = 130,
	BN_F_BN_EXP          = 123,
	BN_F_BN_EXPAND_INTERNAL = 120,
	BN_F_BN_GENCB_NEW    = 143,
	BN_F_BN_GENERATE_DSA_NONCE = 140,
	BN_F_BN_GENERATE_PRIME_EX = 141,
	BN_F_BN_GF2M_MOD     = 131,
	BN_F_BN_GF2M_MOD_EXP = 132,
	BN_F_BN_GF2M_MOD_MUL = 133,
	BN_F_BN_GF2M_MOD_SOLVE_QUAD = 134,
	BN_F_BN_GF2M_MOD_SOLVE_QUAD_ARR = 135,
	BN_F_BN_GF2M_MOD_SQR = 136,
	BN_F_BN_GF2M_MOD_SQRT = 137,
	BN_F_BN_LSHIFT       = 145,
	BN_F_BN_MOD_EXP2_MONT = 118,
	BN_F_BN_MOD_EXP_MONT = 109,
	BN_F_BN_MOD_EXP_MONT_CONSTTIME = 124,
	BN_F_BN_MOD_EXP_MONT_WORD = 117,
	BN_F_BN_MOD_EXP_RECP = 125,
	BN_F_BN_MOD_EXP_SIMPLE = 126,
	BN_F_BN_MOD_INVERSE  = 110,
	BN_F_BN_MOD_INVERSE_NO_BRANCH = 139,
	BN_F_BN_MOD_LSHIFT_QUICK = 119,
	BN_F_BN_MOD_SQRT     = 121,
	BN_F_BN_MONT_CTX_NEW = 149,
	BN_F_BN_MPI2BN       = 112,
	BN_F_BN_NEW          = 113,
	BN_F_BN_POOL_GET     = 147,
	BN_F_BN_RAND         = 114,
	BN_F_BN_RAND_RANGE   = 122,
	BN_F_BN_RECP_CTX_NEW = 150,
	BN_F_BN_RSHIFT       = 146,
	BN_F_BN_SET_WORDS    = 144,
	BN_F_BN_STACK_PUSH   = 148,
	BN_F_BN_USUB         = 115,
	BN_R_ARG2_LT_ARG3    = 100,
	BN_R_BAD_RECIPROCAL  = 101,
	BN_R_BIGNUM_TOO_LONG = 114,
	BN_R_BITS_TOO_SMALL  = 118,
	BN_R_CALLED_WITH_EVEN_MODULUS = 102,
	BN_R_DIV_BY_ZERO     = 103,
	BN_R_ENCODING_ERROR  = 104,
	BN_R_EXPAND_ON_STATIC_BIGNUM_DATA = 105,
	BN_R_INPUT_NOT_REDUCED = 110,
	BN_R_INVALID_LENGTH  = 106,
	BN_R_INVALID_RANGE   = 115,
	BN_R_INVALID_SHIFT   = 119,
	BN_R_NOT_A_SQUARE    = 111,
	BN_R_NOT_INITIALIZED = 107,
	BN_R_NO_INVERSE      = 108,
	BN_R_NO_SOLUTION     = 116,
	BN_R_PRIVATE_KEY_TOO_LARGE = 117,
	BN_R_P_IS_NOT_PRIME  = 112,
	BN_R_TOO_MANY_ITERATIONS = 113,
	BN_R_TOO_MANY_TEMPORARY_VARIABLES = 109,
};
]]
