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Added support for DH groups 22, 23 and 24, patch contributed by Joy Latten

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This commit is contained in:
Martin Willi
2010-04-19 14:41:20 +02:00
parent f0212e8837
commit 4590260b2d
13 changed files with 211 additions and 20 deletions
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src/libstrongswan/plugins/gmp/gmp_diffie_hellman.c
+11 -1
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@@ -106,10 +106,20 @@ static void set_other_public_value(private_gmp_diffie_hellman_t *this, chunk_t v
#ifdef EXTENDED_DH_TEST
/* 3. test if y ^ q mod p = 1, where q = (p - 1)/2. */
mpz_t q, one;
diffie_hellman_params_t *params;
mpz_init(q);
mpz_init(one);
mpz_fdiv_q_2exp(q, p_min_1, 1);
params = diffie_hellman_get_params(this->group);
if (!params->subgroup.len)
{
mpz_fdiv_q_2exp(q, p_min_1, 1);
}
else
{
mpz_import(q, params->subgroup.len, 1, 1, 1, 0, params->subgroup.ptr);
}
mpz_powm(one, this->yb, q, this->p);
mpz_clear(q);
if (mpz_cmp_ui(one, 1) == 0)