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RetroShare/libretroshare/src/pqi/sslfns.cc

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/*
* libretroshare/src/pqi: sslfns.cc
*
* 3P/PQI network interface for RetroShare.
*
* Copyright 2004-2008 by Robert Fernie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Please report all bugs and problems to "retroshare@lunamutt.com".
*
*/
/* Functions in this file are SSL only,
* and have no dependence on SSLRoot() etc.
* might need SSL_Init() to be called - thats it!
*/
/******************** notify of new Cert **************************/
#include "pqi/sslfns.h"
#include "pqi/pqi_base.h"
#include "util/rsdir.h"
#include "util/rsstring.h"
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <iostream>
#include <iomanip>
#include <string.h>
/****
* #define AUTHSSL_DEBUG 1
***/
/********************************************************************************/
#if defined(SSLFNS_ADD_CIPHER_CTX_RAND_KEY)
int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key)
{
//if (ctx->cipher->flags & EVP_CIPH_RAND_KEY)
// return EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_RAND_KEY, 0, key);
if (RAND_bytes(key, ctx->key_len) <= 0)
return 0;
return 1;
}
#endif
/********************************************************************************/
/********************************************************************************/
X509_REQ *GenerateX509Req(
std::string pkey_file, std::string passwd,
std::string name, std::string email, std::string org,
std::string loc, std::string state, std::string country,
int nbits_in, std::string &errString)
{
/* generate request */
X509_REQ *req=X509_REQ_new();
// setup output.
BIO *bio_out = BIO_new(BIO_s_file());
BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
EVP_PKEY *pkey = NULL;
X509_NAME *x509_name = NULL ;
RSA *rsa = NULL ;
try
{
// first generate a key....
if ((pkey=EVP_PKEY_new()) == NULL)
{
fprintf(stderr,"GenerateX509Req: Couldn't Create Key\n");
throw std::runtime_error("Couldn't Create Key") ;
}
int nbits = 2048;
unsigned long e = 0x10001;
if ((nbits_in >= 512) && (nbits_in <= 4096))
{
nbits = nbits_in;
}
else
{
fprintf(stderr,"GenerateX509Req: strange num of nbits: %d\n", nbits_in);
fprintf(stderr,"GenerateX509Req: reverting to %d\n", nbits);
}
rsa = RSA_new();
if ((rsa == NULL) || !EVP_PKEY_assign_RSA(pkey, rsa))
throw std::runtime_error("Couldn't generate RSA Key");
BIGNUM *ebn = BN_new();
BN_set_word(ebn, e);
RSA_generate_key_ex(rsa, nbits, ebn, NULL);
// open the file.
FILE *out;
if (NULL == (out = RsDirUtil::rs_fopen(pkey_file.c_str(), "w")))
throw std::runtime_error("Couldn't Create Key File \"" + pkey_file + "\"");
const EVP_CIPHER *cipher = EVP_des_ede3_cbc();
if (!PEM_write_PrivateKey(out,pkey,cipher, NULL,0,NULL,(void *) passwd.c_str()))
{
fclose(out) ;
throw std::runtime_error("Couldn't Save Private Key to file \""+pkey_file+"\"");
}
fclose(out);
// We have now created a private key....
std::cerr << "GenerateX509Req() Saved Private Key to file \"" << pkey_file << "\"" << std::endl;
/********** Test Loading the private Key.... ************/
FILE *tst_in = NULL;
EVP_PKEY *tst_pkey = NULL;
if (NULL == (tst_in = RsDirUtil::rs_fopen(pkey_file.c_str(), "rb")))
throw std::runtime_error("GenerateX509Req() Couldn't Open Private Key file \""+pkey_file+"\"") ;
if (NULL == (tst_pkey = PEM_read_PrivateKey(tst_in,NULL,NULL,(void *) passwd.c_str())))
{
fclose(tst_in);
throw std::runtime_error("GenerateX509Req() Couldn't read Private Key file \""+pkey_file+"\"") ;
}
fclose(tst_in);
EVP_PKEY_free(tst_pkey);
/* Fill in details: fields.
req->req_info;
req->req_info->enc;
req->req_info->version;
req->req_info->subject;
req->req_info->pubkey;
****************************/
long version = 0x00;
unsigned long chtype = MBSTRING_UTF8;
x509_name = X509_NAME_new();
// fill in the request.
/**** X509_REQ -> Version ********************************/
if(!X509_REQ_set_version(req,version)) /* version 1 */
throw std::runtime_error("GenerateX509Req(): Couldn't Set SSL certificate Version!");
/**** X509_REQ -> Version ********************************/
/**** X509_REQ -> Key ********************************/
if (!X509_REQ_set_pubkey(req,pkey))
throw std::runtime_error("GenerateX509Req(): Couldn't Set SSL certificate PUBKEY!");
/**** SUBJECT ********************************/
// create the name.
// fields to add.
// commonName CN
// emailAddress (none)
// organizationName O
// localityName L
// stateOrProvinceName ST
// countryName C
if (0 == strlen(name.c_str()))
throw std::runtime_error("No name! Aborting.") ;
X509_NAME_add_entry_by_txt(x509_name, "CN", chtype, (unsigned char *) name.c_str(), -1, -1, 0);
if (0 < strlen(email.c_str()))
X509_NAME_add_entry_by_NID(x509_name, 48, 0, (unsigned char *) email.c_str(), -1, -1, 0);
if (0 < strlen(org.c_str()))
X509_NAME_add_entry_by_txt(x509_name, "O", chtype, (unsigned char *) org.c_str(), -1, -1, 0);
if (0 < strlen(loc.c_str()))
X509_NAME_add_entry_by_txt(x509_name, "L", chtype, (unsigned char *) loc.c_str(), -1, -1, 0);
if (0 < strlen(state.c_str()))
X509_NAME_add_entry_by_txt(x509_name, "ST", chtype, (unsigned char *) state.c_str(), -1, -1, 0);
if (0 < strlen(country.c_str()))
X509_NAME_add_entry_by_txt(x509_name, "C", chtype, (unsigned char *) country.c_str(), -1, -1, 0);
if (!X509_REQ_set_subject_name(req,x509_name))
throw std::runtime_error("GenerateX509Req() Couldn't Set Name to Request!");
X509_NAME_free(x509_name);
/**** SUBJECT ********************************/
if (!X509_REQ_sign(req,pkey,EVP_sha1()))
throw std::runtime_error("GenerateX509Req() Failed to sign REQ");
errString = "No Error";
return req;
}
catch(std::exception& e)
{
std::cerr << "(EE) Key creation failed: " << e.what() << std::endl;
errString = e.what() ;
req = NULL ;
}
if(rsa)
RSA_free(rsa);
if(x509_name)
X509_NAME_free(x509_name);
if(bio_out)
BIO_free_all(bio_out) ;
if(pkey)
EVP_PKEY_free(pkey);
return req ;
}
#define SERIAL_RAND_BITS 64
X509 *SignX509Certificate(X509_NAME *issuer, EVP_PKEY *privkey, X509_REQ *req, long days)
{
const EVP_MD *digest = EVP_sha1();
ASN1_INTEGER *serial = ASN1_INTEGER_new();
EVP_PKEY *tmppkey;
X509 *x509 = X509_new();
if (x509 == NULL)
return NULL;
BIGNUM *btmp = BN_new();
if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," pseudo_rand\n");
return NULL;
}
if (!BN_to_ASN1_INTEGER(btmp, serial))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," int\n");
return NULL;
}
BN_free(btmp);
if (!X509_set_serialNumber(x509, serial))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," serialNumber\n");
return NULL;
}
ASN1_INTEGER_free(serial);
if (!X509_set_issuer_name(x509, issuer))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," issuer\n");
return NULL;
}
if (!X509_gmtime_adj(x509->cert_info->validity->notBefore, 0))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," notBefore\n");
return NULL;
}
//x509->cert_info->validity->notAfter
//if (!X509_gmtime_adj(X509_get_notAfter(x509), (long)60*60*24*days))
if (!X509_gmtime_adj(x509->cert_info->validity->notAfter, (long)60*60*24*days))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," notAfter\n");
return NULL;
}
if (!X509_set_subject_name(x509, X509_REQ_get_subject_name(req)))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," subject_name\n");
return NULL;
}
tmppkey = X509_REQ_get_pubkey(req);
if (!tmppkey || !X509_set_pubkey(x509,tmppkey))
{
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," pubkey\n");
return NULL;
}
/* Cleanup Algorithm part */
X509_ALGOR *algor1 = x509->cert_info->signature;
X509_ALGOR *algor2 = x509->sig_alg;
X509_ALGOR *a;
a = algor1;
ASN1_TYPE_free(a->parameter);
a->parameter=ASN1_TYPE_new();
a->parameter->type=V_ASN1_NULL;
ASN1_OBJECT_free(a->algorithm);
a->algorithm=OBJ_nid2obj(digest->pkey_type);
a = algor2;
ASN1_TYPE_free(a->parameter);
a->parameter=ASN1_TYPE_new();
a->parameter->type=V_ASN1_NULL;
ASN1_OBJECT_free(a->algorithm);
a->algorithm=OBJ_nid2obj(digest->pkey_type);
if (!X509_sign(x509,privkey,digest))
{
long e = ERR_get_error();
fprintf(stderr,"SignX509Certificate() Failed: ");
fprintf(stderr," signing Error: %ld\n", e);
fprintf(stderr,"ERR: %s, %s, %s\n",
ERR_lib_error_string(e),
ERR_func_error_string(e),
ERR_reason_error_string(e));
int inl=i2d_X509(x509,NULL);
int outl=EVP_PKEY_size(privkey);
fprintf(stderr,"Size Check: inl: %d, outl: %d\n", inl, outl);
return NULL;
}
fprintf(stderr,"SignX509Certificate() Success\n");
return x509;
}
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
/* Sign / Encrypt / Verify Data */
bool SSL_SignDataBin(const void *data, const uint32_t len,
unsigned char *sign, unsigned int *signlen, EVP_PKEY *pkey)
{
EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
unsigned int req_signlen = EVP_PKEY_size(pkey);
if (req_signlen > *signlen)
{
/* not enough space */
std::cerr << "SignDataBin() Not Enough Sign SpacegnInit Failure!" << std::endl;
return false;
}
if (0 == EVP_SignInit(mdctx, EVP_sha1()))
{
std::cerr << "EVP_SignInit Failure!" << std::endl;
EVP_MD_CTX_destroy(mdctx);
return false;
}
if (0 == EVP_SignUpdate(mdctx, data, len))
{
std::cerr << "EVP_SignUpdate Failure!" << std::endl;
EVP_MD_CTX_destroy(mdctx);
return false;
}
if (0 == EVP_SignFinal(mdctx, sign, signlen, pkey))
{
std::cerr << "EVP_SignFinal Failure!" << std::endl;
EVP_MD_CTX_destroy(mdctx);
return false;
}
EVP_MD_CTX_destroy(mdctx);
return true;
}
bool SSL_VerifySignBin(const void *data, const uint32_t len,
unsigned char *sign, unsigned int signlen, X509 *cert)
{
/* cert->cert_info->key->pkey is NULL....
* but is instantiated when we call X509_get_pubkey()
*/
EVP_PKEY *peerkey = X509_get_pubkey(cert);
/* must free this key afterwards */
bool ret = SSL_VerifySignBin(data, len, sign, signlen, peerkey);
EVP_PKEY_free(peerkey);
return ret;
}
/* Correct form of this function ... Internal for AuthSSL's usage
*/
bool SSL_VerifySignBin(const void *data, const uint32_t len,
unsigned char *sign, unsigned int signlen, EVP_PKEY *peerkey)
{
if(peerkey == NULL)
{
std::cerr << "VerifySignBin: no public key available !!" << std::endl ;
return false ;
}
EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
if (0 == EVP_VerifyInit(mdctx, EVP_sha1()))
{
std::cerr << "EVP_VerifyInit Failure!" << std::endl;
EVP_MD_CTX_destroy(mdctx);
return false;
}
if (0 == EVP_VerifyUpdate(mdctx, data, len))
{
std::cerr << "EVP_VerifyUpdate Failure!" << std::endl;
EVP_MD_CTX_destroy(mdctx);
return false;
}
if(signlen == 0 || sign == NULL)
{
std::cerr << "AuthSSL::VerifySignBin: signlen=" << signlen << ", sign=" << (void*)sign << "!!" << std::endl ;
EVP_MD_CTX_destroy(mdctx);
return false ;
}
if (0 == EVP_VerifyFinal(mdctx, sign, signlen, peerkey))
{
std::cerr << "EVP_VerifyFinal Failure!" << std::endl;
EVP_MD_CTX_destroy(mdctx);
return false;
}
EVP_MD_CTX_destroy(mdctx);
return true;
}
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
X509 *loadX509FromPEM(std::string pem)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "loadX509FromPEM()";
std::cerr << std::endl;
#endif
/* Put the data into a mem BIO */
char *certstr = strdup(pem.c_str());
BIO *bp = BIO_new_mem_buf(certstr, -1);
X509 *pc = PEM_read_bio_X509(bp, NULL, NULL, NULL);
BIO_free(bp);
free(certstr);
return pc;
}
std::string saveX509ToPEM(X509* x509)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "saveX509ToPEM() " << std::endl;
#endif
/* get the cert first */
std::string certstr;
BIO *bp = BIO_new(BIO_s_mem());
PEM_write_bio_X509(bp, x509);
/* translate the bp data to a string */
char *data;
int len = BIO_get_mem_data(bp, &data);
for(int i = 0; i < len; i++)
{
certstr += data[i];
}
BIO_free(bp);
return certstr;
}
X509 *loadX509FromDER(const uint8_t *ptr, uint32_t len)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "AuthSSL::LoadX509FromDER()";
std::cerr << std::endl;
#endif
X509 *tmp = NULL;
#ifdef __APPLE__
// This depends on which version you are compiling for... OSX10.5 doesn't have consts (old OpenSSL!)
// With the Advent of Openpgpsdk, we are forced to move to OSX10.6 for a newer OpenSSL (probably a good thing).
// So we can change this around.
//unsigned char **certptr = (unsigned char **) &ptr;
const unsigned char **certptr = (const unsigned char **) &ptr;
#else
const unsigned char **certptr = (const unsigned char **) &ptr;
#endif
X509 *x509 = d2i_X509(&tmp, certptr, len);
return x509;
}
bool saveX509ToDER(X509 *x509, uint8_t **ptr, uint32_t *len)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "AuthSSL::saveX509ToDER()";
std::cerr << std::endl;
#endif
int certlen = i2d_X509(x509, (unsigned char **) ptr);
if (certlen > 0)
{
*len = certlen;
return true;
}
else
{
*len = 0;
return false;
}
return false;
}
bool getX509id(X509 *x509, RsPeerId& xid)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "AuthSSL::getX509id()";
std::cerr << std::endl;
#endif
xid.clear() ;
if (x509 == NULL)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "AuthSSL::getX509id() NULL pointer";
std::cerr << std::endl;
#endif
return false;
}
// get the signature from the cert, and copy to the array.
ASN1_BIT_STRING *signature = x509->signature;
int signlen = ASN1_STRING_length(signature);
if (signlen < CERTSIGNLEN)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "AuthSSL::getX509id() ERROR: Short Signature";
std::cerr << std::endl;
#endif
return false;
}
// else copy in the first CERTSIGNLEN.
unsigned char *signdata = ASN1_STRING_data(signature);
/* switched to the other end of the signature. for
* more randomness
*/
xid = RsPeerId(&signdata[signlen - CERTSIGNLEN]) ;
//for(int i = signlen - CERTSIGNLEN; i < signlen; i++)
//{
// rs_sprintf_append(xid, "%02x", (uint16_t) (((uint8_t *) (signdata))[i]));
//}
return true;
}
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
/********************************************************************************/
int pem_passwd_cb(char *buf, int size, int rwflag, void *password)
{
/* remove unused parameter warnings */
(void) rwflag;
strncpy(buf, (char *)(password), size);
buf[size - 1] = '\0';
return(strlen(buf));
}
/* XXX FIX */
bool CheckX509Certificate(X509 */*x509*/)
{
return true;
}
// Not dependent on sslroot. load, and detroys the X509 memory.
int LoadCheckX509(const char *cert_file, RsPgpId& issuerName, std::string &location, RsPeerId &userId)
{
/* This function loads the X509 certificate from the file,
* and checks the certificate
*/
FILE *tmpfp = RsDirUtil::rs_fopen(cert_file, "r");
if (tmpfp == NULL)
{
#ifdef AUTHSSL_DEBUG
std::cerr << "sslroot::LoadCheckAndGetX509Name()";
std::cerr << " Failed to open Certificate File:" << cert_file;
std::cerr << std::endl;
#endif
return 0;
}
// get xPGP certificate.
X509 *x509 = PEM_read_X509(tmpfp, NULL, NULL, NULL);
fclose(tmpfp);
// check the certificate.
bool valid = false;
if (x509)
{
valid = CheckX509Certificate(x509);
if (valid)
{
valid = getX509id(x509, userId);
}
}
if (valid)
{
// extract the name.
issuerName = RsPgpId(std::string(getX509CNString(x509->cert_info->issuer)));
location = getX509LocString(x509->cert_info->subject);
}
#ifdef AUTHSSL_DEBUG
std::cout << getX509Info(x509) << std::endl ;
#endif
// clean up.
X509_free(x509);
if (valid)
{
// happy!
return 1;
}
else
{
// something went wrong!
return 0;
}
}
std::string getX509NameString(X509_NAME *name)
{
std::string namestr;
for(int i = 0; i < X509_NAME_entry_count(name); i++)
{
X509_NAME_ENTRY *entry = X509_NAME_get_entry(name, i);
ASN1_STRING *entry_data = X509_NAME_ENTRY_get_data(entry);
ASN1_OBJECT *entry_obj = X509_NAME_ENTRY_get_object(entry);
namestr += "\t";
namestr += OBJ_nid2ln(OBJ_obj2nid(entry_obj));
namestr += " : ";
//namestr += entry_obj -> flags;
//namestr += entry_data -> length;
//namestr += entry_data -> type;
//namestr += entry_data -> flags;
//entry -> set;
if (entry_data -> data != NULL)
{
namestr += (char *) entry_data -> data;
}
else
{
namestr += "NULL";
}
if (i + 1 < X509_NAME_entry_count(name))
{
namestr += "\n";
}
}
return namestr;
}
std::string getX509CNString(X509_NAME *name)
{
std::string namestr;
for(int i = 0; i < X509_NAME_entry_count(name); i++)
{
X509_NAME_ENTRY *entry = X509_NAME_get_entry(name, i);
ASN1_STRING *entry_data = X509_NAME_ENTRY_get_data(entry);
ASN1_OBJECT *entry_obj = X509_NAME_ENTRY_get_object(entry);
if (0 == strncmp("CN", OBJ_nid2sn(OBJ_obj2nid(entry_obj)), 2))
{
if (entry_data -> data != NULL)
{
// do we need to convert ASN1_STRING to utf8 (ASN1_STRING_to_UTF8)?
namestr = (char *) entry_data->data;
}
else
{
namestr = "Unknown";
}
break;
}
}
return namestr;
}
std::string getX509TypeString(X509_NAME *name, const char *type, int len)
{
std::string namestr;
for(int i = 0; i < X509_NAME_entry_count(name); i++)
{
X509_NAME_ENTRY *entry = X509_NAME_get_entry(name, i);
ASN1_STRING *entry_data = X509_NAME_ENTRY_get_data(entry);
ASN1_OBJECT *entry_obj = X509_NAME_ENTRY_get_object(entry);
if (0 == strncmp(type, OBJ_nid2sn(OBJ_obj2nid(entry_obj)), len))
{
if (entry_data -> data != NULL)
{
// do we need to convert ASN1_STRING to utf8 (ASN1_STRING_to_UTF8)?
namestr = (char *) entry_data -> data;
}
else
{
namestr = "Unknown";
}
break;
}
}
return namestr;
}
std::string getX509LocString(X509_NAME *name)
{
return getX509TypeString(name, "L", 2);
}
std::string getX509OrgString(X509_NAME *name)
{
return getX509TypeString(name, "O", 2);
}
std::string getX509CountryString(X509_NAME *name)
{
return getX509TypeString(name, "C", 2);
}
#ifdef AUTHSSL_DEBUG
std::string getX509Info(X509 *cert)
{
std::string out = "X509 Certificate:\n";
long l;
l=X509_get_version(cert);
rs_sprintf_append(out, " Version: %ld(0x%ld)\n", l+1, l);
out += " Subject: \n";
out += " " + getX509NameString(cert->cert_info->subject) + "\n\n";
out += " Signatures:\n";
return out;
}
#endif
/********** SSL ERROR STUFF ******************************************/
int printSSLError(SSL *ssl, int retval, int err, unsigned long err2, std::string &out)
{
(void) ssl; /* remove unused parameter warnings */
std::string reason;
std::string mainreason = std::string("UNKNOWN ERROR CODE");
if (err == SSL_ERROR_NONE)
{
mainreason = std::string("SSL_ERROR_NONE");
}
else if (err == SSL_ERROR_ZERO_RETURN)
{
mainreason = std::string("SSL_ERROR_ZERO_RETURN");
}
else if (err == SSL_ERROR_WANT_READ)
{
mainreason = std::string("SSL_ERROR_WANT_READ");
}
else if (err == SSL_ERROR_WANT_WRITE)
{
mainreason = std::string("SSL_ERROR_WANT_WRITE");
}
else if (err == SSL_ERROR_WANT_CONNECT)
{
mainreason = std::string("SSL_ERROR_WANT_CONNECT");
}
else if (err == SSL_ERROR_WANT_ACCEPT)
{
mainreason = std::string("SSL_ERROR_WANT_ACCEPT");
}
else if (err == SSL_ERROR_WANT_X509_LOOKUP)
{
mainreason = std::string("SSL_ERROR_WANT_X509_LOOKUP");
}
else if (err == SSL_ERROR_SYSCALL)
{
mainreason = std::string("SSL_ERROR_SYSCALL");
}
else if (err == SSL_ERROR_SSL)
{
mainreason = std::string("SSL_ERROR_SSL");
}
rs_sprintf_append(out, "RetVal(%d) -> SSL Error: %s\n\t + ERR Error: %s\n", retval, mainreason.c_str(), ERR_error_string(err2, NULL));
return 1;
}
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