Exemplos de fips_check_dsa em C++ (Cpp)

Exemplo n.º 1

Arquivo: fips_dsa_gen.c Projeto: aosm/OpenSSL097

int DSA_generate_key(DSA *dsa)
	{
	int ok=0;
	BN_CTX *ctx=NULL;
	BIGNUM *pub_key=NULL,*priv_key=NULL;

	if ((ctx=BN_CTX_new()) == NULL) goto err;

	if (dsa->priv_key == NULL)
		{
		if ((priv_key=BN_new()) == NULL) goto err;
		}
	else
		priv_key=dsa->priv_key;

	do
		if (!BN_rand_range(priv_key,dsa->q)) goto err;
	while (BN_is_zero(priv_key));

	if (dsa->pub_key == NULL)
		{
		if ((pub_key=BN_new()) == NULL) goto err;
		}
	else
		pub_key=dsa->pub_key;

	if (!BN_mod_exp(pub_key,dsa->g,priv_key,dsa->p,ctx)) goto err;

	dsa->priv_key=priv_key;
	dsa->pub_key=pub_key;

	if(!fips_check_dsa(dsa))
	    goto err;

	ok=1;

err:
	if ((pub_key != NULL) && (dsa->pub_key == NULL)) BN_free(pub_key);
	if ((priv_key != NULL) && (dsa->priv_key == NULL)) BN_free(priv_key);
	if (ctx != NULL) BN_CTX_free(ctx);
	return(ok);
	}

Exemplo n.º 2

Arquivo: fips_dsa_key.c Projeto: GrayKing/Leakfix-on-OpenSSL

static int dsa_builtin_keygen(DSA *dsa)
{
    int ok = 0;
    BN_CTX *ctx = NULL;
    BIGNUM *pub_key = NULL, *priv_key = NULL;

    if (FIPS_mode()
        && (BN_num_bits(dsa->p) < OPENSSL_DSA_FIPS_MIN_MODULUS_BITS)) {
        DSAerr(DSA_F_DSA_BUILTIN_KEYGEN, DSA_R_KEY_SIZE_TOO_SMALL);
        goto err;
    }

    if ((ctx = BN_CTX_new()) == NULL)
        goto err;

    if (dsa->priv_key == NULL) {
        if ((priv_key = BN_new()) == NULL)
            goto err;
    } else
        priv_key = dsa->priv_key;

    do
        if (!BN_rand_range(priv_key, dsa->q))
            goto err;
    while (BN_is_zero(priv_key)) ;

    if (dsa->pub_key == NULL) {
        if ((pub_key = BN_new()) == NULL)
            goto err;
    } else
        pub_key = dsa->pub_key;

    {
        BIGNUM local_prk;
        BIGNUM *prk;

        if ((dsa->flags & DSA_FLAG_NO_EXP_CONSTTIME) == 0) {
            BN_init(&local_prk);
            prk = &local_prk;
            BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);
        } else
            prk = priv_key;

        if (!BN_mod_exp(pub_key, dsa->g, prk, dsa->p, ctx))
            goto err;
    }

    dsa->priv_key = priv_key;
    dsa->pub_key = pub_key;
    if (fips_dsa_pairwise_fail)
        BN_add_word(dsa->pub_key, 1);
    if (!fips_check_dsa(dsa))
        goto err;
    ok = 1;

 err:
    if ((pub_key != NULL) && (dsa->pub_key == NULL))
        BN_free(pub_key);
    if ((priv_key != NULL) && (dsa->priv_key == NULL))
        BN_free(priv_key);
    if (ctx != NULL)
        BN_CTX_free(ctx);
    return (ok);
}