77   DH *dh = (DH *)OPENSSL_malloc(sizeof(DH));  in DH_new()  local
78   if (dh == NULL) {  in DH_new()
83   memset(dh, 0, sizeof(DH));  in DH_new()
85   CRYPTO_MUTEX_init(&dh->method_mont_p_lock);  in DH_new()
87   dh->references = 1;  in DH_new()
88   CRYPTO_new_ex_data(&dh->ex_data);  in DH_new()
90   return dh;  in DH_new()
93 void DH_free(DH *dh) {  in DH_free()  argument
94   if (dh == NULL) {  in DH_free()
98   if (!CRYPTO_refcount_dec_and_test_zero(&dh->references)) {  in DH_free()
102   CRYPTO_free_ex_data(&g_ex_data_class, dh, &dh->ex_data);  in DH_free()
104   BN_MONT_CTX_free(dh->method_mont_p);  in DH_free()
105   BN_clear_free(dh->p);  in DH_free()
106   BN_clear_free(dh->g);  in DH_free()
107   BN_clear_free(dh->q);  in DH_free()
108   BN_clear_free(dh->j);  in DH_free()
109   OPENSSL_free(dh->seed);  in DH_free()
110   BN_clear_free(dh->counter);  in DH_free()
111   BN_clear_free(dh->pub_key);  in DH_free()
112   BN_clear_free(dh->priv_key);  in DH_free()
113   CRYPTO_MUTEX_cleanup(&dh->method_mont_p_lock);  in DH_free()
115   OPENSSL_free(dh);  in DH_free()
118 int DH_generate_parameters_ex(DH *dh, int prime_bits, int generator, BN_GENCB *cb) {  in DH_generate_parameters_ex()  argument
162   if (dh->p == NULL) {  in DH_generate_parameters_ex()
163     dh->p = BN_new();  in DH_generate_parameters_ex()
164     if (dh->p == NULL) {  in DH_generate_parameters_ex()
168   if (dh->g == NULL) {  in DH_generate_parameters_ex()
169     dh->g = BN_new();  in DH_generate_parameters_ex()
170     if (dh->g == NULL) {  in DH_generate_parameters_ex()
211   if (!BN_generate_prime_ex(dh->p, prime_bits, 1, t1, t2, cb)) {  in DH_generate_parameters_ex()
217   if (!BN_set_word(dh->g, g)) {  in DH_generate_parameters_ex()
234 int DH_generate_key(DH *dh) {  in DH_generate_key()  argument
243   if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) {  in DH_generate_key()
253   if (dh->priv_key == NULL) {  in DH_generate_key()
260     priv_key = dh->priv_key;  in DH_generate_key()
263   if (dh->pub_key == NULL) {  in DH_generate_key()
269     pub_key = dh->pub_key;  in DH_generate_key()
272   mont = BN_MONT_CTX_set_locked(&dh->method_mont_p, &dh->method_mont_p_lock,  in DH_generate_key()
273                                 dh->p, ctx);  in DH_generate_key()
279     if (dh->q) {  in DH_generate_key()
281         if (!BN_rand_range(priv_key, dh->q)) {  in DH_generate_key()
287       DH_check_standard_parameters(dh);  in DH_generate_key()
288       l = dh->priv_length ? dh->priv_length : BN_num_bits(dh->p) - 1;  in DH_generate_key()
296   if (!BN_mod_exp_mont(pub_key, dh->g, &local_priv, dh->p, ctx, mont)) {  in DH_generate_key()
300   dh->pub_key = pub_key;  in DH_generate_key()
301   dh->priv_key = priv_key;  in DH_generate_key()
309   if (dh->pub_key == NULL) {  in DH_generate_key()
312   if (dh->priv_key == NULL) {  in DH_generate_key()
319 int DH_compute_key(unsigned char *out, const BIGNUM *peers_key, DH *dh) {  in DH_compute_key()  argument
327   if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) {  in DH_compute_key()
342   if (dh->priv_key == NULL) {  in DH_compute_key()
347   mont = BN_MONT_CTX_set_locked(&dh->method_mont_p, &dh->method_mont_p_lock,  in DH_compute_key()
348                                 dh->p, ctx);  in DH_compute_key()
353   if (!DH_check_pub_key(dh, peers_key, &check_result) || check_result) {  in DH_compute_key()
358   BN_with_flags(&local_priv, dh->priv_key, BN_FLG_CONSTTIME);  in DH_compute_key()
359   if (!BN_mod_exp_mont(shared_key, peers_key, &local_priv, dh->p, ctx,  in DH_compute_key()
376 int DH_size(const DH *dh) { return BN_num_bytes(dh->p); }  in DH_size()  argument
378 unsigned DH_num_bits(const DH *dh) { return BN_num_bits(dh->p); }  in DH_num_bits()  argument
380 int DH_up_ref(DH *dh) {  in DH_up_ref()  argument
381   CRYPTO_refcount_inc(&dh->references);  in DH_up_ref()
433 DH *DHparams_dup(const DH *dh) {  in DHparams_dup()  argument
439   if (!int_dh_param_copy(ret, dh, -1)) {  in DHparams_dup()