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Add support for DSA2 PQG generation of g parameter.

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This commit is contained in:
Dr. Stephen Henson
2011-08-27 12:30:47 +00:00
parent f55f5f775e
commit 2abaa9caaf
2 changed files with 79 additions and 21 deletions
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29
crypto/dsa/dsa_gen.c
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@@ -494,22 +494,26 @@ int dsa_builtin_paramgen2(DSA *ret, size_t L, size_t N,
}
mdsize = M_EVP_MD_size(evpmd);
/* If unverificable g generation only don't need seed */
if (!ret->p || !ret->q || idx >= 0)
{
if (seed_len == 0)
seed_len = mdsize;
if (seed_len == 0)
seed_len = mdsize;
seed = OPENSSL_malloc(seed_len);
seed = OPENSSL_malloc(seed_len);
if (seed_out)
seed_tmp = seed_out;
else
seed_tmp = OPENSSL_malloc(seed_len);
if (seed_out)
seed_tmp = seed_out;
else
seed_tmp = OPENSSL_malloc(seed_len);
if (!seed || !seed_tmp)
goto err;
if (!seed || !seed_tmp)
goto err;
if (seed_in)
memcpy(seed, seed_in, seed_len);
if (seed_in)
memcpy(seed, seed_in, seed_len);
}
if ((ctx=BN_CTX_new()) == NULL)
goto err;
@@ -530,7 +534,8 @@ int dsa_builtin_paramgen2(DSA *ret, size_t L, size_t N,
{
p = ret->p;
q = ret->q;
memcpy(seed_tmp, seed, seed_len);
if (idx >= 0)
memcpy(seed_tmp, seed, seed_len);
goto g_only;
}
else