how to change location of OpenSSL config file

Question

I'm using the openssl downloaded in http://slproweb.com/products/Win32OpenSSL.html. The first one of the list. I installed it in windows x64 system. When I use openssl to work. It signed: WARNING: can't open config file: /usr/local/ssl/openssl.cnf Unable to load config info from /usr/local/ssl/openssl.cnf

I'm using windows and it have no /usr/.... instead of C:/... and the config file is in C:\OpenSSL-Win32\bin\openssl.cfg what can I do？ how to change the config local.

jxh · Accepted Answer · 2020-03-18T22:34:50.430

2

The location of the configuration file can be affected by the environment variable OPENSSL_CONF.

Since OpenSSL 1.1, initialization via configuration happens automatically. If you need some explicit initialization, you would use OPENSSL_init_crypto.

Prior to version 1.1, you would use OPENSSL_config:

#include <openssl/conf.h>
void OPENSSL_config(const char *config_name);

DESCRIPTION: OPENSSL_config() configures OpenSSL using the standard openssl.cnf configuration file name using config_name.

NOTES: The environment variable OPENSSL_CONF can be set to specify the location of the configuration file.

edited Mar 18 '20 at 22:34

answered Jun 11 '14 at 03:39

jxh

69,070
8
110
193

OPENSSL_config is depreciated in 1.1.0. Use of OPENSSL_CONF env variable works. – lashgar Mar 18 '20 at 21:39
@lashgar: Thanks, answer updated. – jxh Mar 18 '20 at 22:35

how to change location of OpenSSL config file

1 Answers1