Hi all,
We are trying to use openssl 0.9.8g with our application on various
platforms. we are facing an issue now.
while creating a keystore as shown in below function (I have included only
relevant portions of the function) the application got crashed at free()
(msvcr80.dll).
what i feel is that it is because of either ERR_free_strings() or
ERR_remove_state(0) or EVP_cleanup();.
Please note that we are calling the below function from inside a loop in
another function. the crash happens when the below code executes for the
second time. Also the below functin will be resolved on a .dll which is
loaded by a single threaded (C) application.
Are we missing some thing or are we doing some thing really wrong here.
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X509 *x = NULL;
EVP_PKEY *pk = NULL;
RSA *rsa = NULL;
X509_NAME *cerName=NULL;
/* Keystore */
PKCS12 *p12 = NULL;
FILE *fp = NULL ;
CRYPTO_malloc_init();
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
SSLeay_add_all_algorithms();
ERR_load_crypto_strings();
/* Creates the key pairs and puts it into structure */
if ((rsa = RSA_generate_key(2048,
RSA_F4, callback, NULL)) ==
NULL)
{
return -1;
}
if (!EVP_PKEY_assign_RSA(pk, rsa))
{
return -1;
}
X509_set_version(x, 2);
ASN1_INTEGER_set(X509_get_serialNumber(x), 0);
X509_gmtime_adj(X509_get_notBefore(x), 0);
X509_gmtime_adj(X509_get_notAfter(x),
(long)60 * 60 * 24 * 365);
X509_set_pubkey(x, pk);
cerName = X509_get_subject_name(x);
X509_NAME_add_entry_by_txt(cerName,
"C", MBSTRING_ASC, countryName, -1, -1, 0);
X509_NAME_add_entry_by_txt(cerName,
"O", MBSTRING_ASC, orgName, -1, -1, 0);
X509_NAME_add_entry_by_txt(cerName,
"CN", MBSTRING_ASC, commonName, -1, -1, 0);
X509_set_issuer_name(x, cerName);
/* Add various extensions: standard extensions */
add_ext(x, NID_basic_constraints, "critical,CA:TRUE");
add_ext(x, NID_key_usage, "critical,keyCertSign,cRLSign");
add_ext(x, NID_subject_key_identifier, "hash");
if (!X509_sign(x, pk, EVP_md5()))
{
return -1;
}
if ((fp = fopen(path, "wb")) == NULL)
{
return -1;
}
if ((p12 = PKCS12_create((char *)pwd, friendlyName,
pk, x, NULL, 0, 0, 0, 0, 0)) == NULL)
{
return -1;
}
/* Write Keystore */
i2d_PKCS12_fp(fp, p12);
PKCS12_free(p12);
fclose(fp);
X509_free(x);
EVP_PKEY_free(pk);
CRYPTO_cleanup_all_ex_data();
ERR_free_strings();
ERR_remove_state(0);
EVP_cleanup();
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Thanks in advance.
-Sanjith
