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Hakase
2020-02-11 23:20:44 +09:00
parent 047a30700b
commit 9dfeec3942
639 changed files with 14024 additions and 31198 deletions
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crypto/dsa/dsa_key.c
+24 -12
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@@ -11,42 +11,53 @@
#include <time.h>
#include "internal/cryptlib.h"
#include <openssl/bn.h>
#include "crypto/dsa.h"
#include "dsa_local.h"
static int dsa_builtin_keygen(DSA *dsa);
static int dsa_builtin_keygen(OPENSSL_CTX *libctx, DSA *dsa);
int DSA_generate_key(DSA *dsa)
{
if (dsa->meth->dsa_keygen)
if (dsa->meth->dsa_keygen != NULL)
return dsa->meth->dsa_keygen(dsa);
return dsa_builtin_keygen(dsa);
return dsa_builtin_keygen(NULL, dsa);
}
static int dsa_builtin_keygen(DSA *dsa)
int dsa_generate_key_ctx(OPENSSL_CTX *libctx, DSA *dsa)
{
#ifndef FIPS_MODE
if (dsa->meth->dsa_keygen != NULL)
return dsa->meth->dsa_keygen(dsa);
#endif
return dsa_builtin_keygen(libctx, dsa);
}
static int dsa_builtin_keygen(OPENSSL_CTX *libctx, DSA *dsa)
{
int ok = 0;
BN_CTX *ctx = NULL;
BIGNUM *pub_key = NULL, *priv_key = NULL;
if ((ctx = BN_CTX_new()) == NULL)
if ((ctx = BN_CTX_new_ex(libctx)) == NULL)
goto err;
if (dsa->priv_key == NULL) {
if ((priv_key = BN_secure_new()) == NULL)
goto err;
} else
} else {
priv_key = dsa->priv_key;
}
do
if (!BN_priv_rand_range(priv_key, dsa->q))
goto err;
while (BN_is_zero(priv_key)) ;
if (!ffc_generate_private_key(ctx, &dsa->params, BN_num_bits(dsa->params.q),
112, priv_key))
goto err;
if (dsa->pub_key == NULL) {
if ((pub_key = BN_new()) == NULL)
goto err;
} else
} else {
pub_key = dsa->pub_key;
}
{
BIGNUM *prk = BN_new();
@@ -55,7 +66,8 @@ static int dsa_builtin_keygen(DSA *dsa)
goto err;
BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);
if (!BN_mod_exp(pub_key, dsa->g, prk, dsa->p, ctx)) {
/* pub_key = g ^ priv_key mod p */
if (!BN_mod_exp(pub_key, dsa->params.g, prk, dsa->params.p, ctx)) {
BN_free(prk);
goto err;
}