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OpenSSL "ca" - "error while loading CRL number"
Why I am getting the "error while loading CRL number" error when running OpenSSL "ca -gencrl" command? If you are running the OpenSSL "ca -gencrl" command installed with the slproweb binary package for Windows, you may get the "error while loading CRL number" error as shown below: C:\Users\fyicenter...
2016-09-10, 1118👍, 0💬

OpenSSL "ca -gencrl" - Generate CRL
How to generate a CRL using the OpenSSL "ca" command? I need to publish the CRL to inform users about certificates I have revoked. If you want to generate a CRL (Certificate Revocation List), you can use the OpenSSL "ca -gencrl" command as shown below: C:\Users\fyicenter&gt;\loc al\OpenSSL-Win32\...
2016-09-10, 645👍, 0💬

OpenSSL "ca -revoke" - Revoke a Certificate
How to revoke a certificate using the OpenSSL "ca" command? The certificate was signed by me with my CA certificate, but now it is no longer needed. If you want revoke a certificate that was signed by you previously, you can use the OpenSSL "ca -revoke" command to revoke it. Actually, the certificat...
2016-09-10, 560👍, 0💬

OpenSSL "ca" - Sign the CSR Again
How to sign the a CSR again the OpenSSL "ca" command? It was signed for 1 year the first time. But the requester wants the certificate to valid for 3 years. If you sign a CSR incorrectly and want to sign it again with the OpenSSL "ca" command, you need to revoke the certificate, then sign it again c...
2016-09-10, 479👍, 0💬

OpenSSL "crl -text" - View CRL in Test Format
How to view a CRL in text format using the OpenSSL "crl" command? I want to see what certificates are listed in the CRL. If you want to view the content of a CRL (Certificate Revocation List), you can use the OpenSSL "crl -text" command as shown below: C:\Users\fyicenter&gt;\loc al\OpenSSL-Win32\...
2016-09-10, 456👍, 0💬

OpenSSL "ca" Error "lookup failed for ca::default_ca"
Why I am getting the "variable lookup failed for ca::default_ca" error when running OpenSSL "ca" command? You are getting the "variable lookup failed for ca::default_ca" error, because OpenSSL "ca" command can not find the required "default_ca" option in the configuration file. For example, if you h...
2016-09-09, 4246👍, 0💬

OpenSSL "ca" Error "... directory for new certificate ..."
Why I am getting the "there needs to be defined a directory for new certificate to be placed in" error when running OpenSSL "ca" command? You are getting the "there needs to be defined a directory for new certificate to be placed in" error, because OpenSSL "ca" command can not find the required "new...
2016-09-09, 1252👍, 0💬

OpenSSL "ca -config" - Using Configuration File
Can I use my own configuration file when running "ca" command? Yes, you can specify your own configuration file using the "-config file" option when running the "ca" command. OpenSSL configuration file allows you to control the behavior of the "ca" command with the following options: certificate - T...
2016-09-09, 398👍, 0💬

OpenSSL "ca -selfsign" - Self Sign CSR
How to sign my own CSR to create a self-signed certificate using the OpenSSL "ca" command? You can use the OpenSSL "req -new -x509" command to generate a self-signed certificate from your private key. But you can also use the "ca -selfsign" command to generate a self-signed certificate from your CSR...
2016-09-09, 385👍, 0💬

OpenSSL [ca] Section in Configuration File
How to provide OpenSSL "ca" command options in the configuration file? I see examples of using the [ca] section. Yes, you can use the [ca] section to help providing OpenSSL "ca" command options in the configuration file. But there are 4 ways to provide "ca" command options: 1. Using unnamed section ...
2016-09-09, 324👍, 0💬

OpenSSL "ca" Error "lookup failed for ca::database"
Why I am getting the "variable lookup failed for ca::database" error when running OpenSSL "ca" command? You are getting the "variable lookup failed for ca::database" error, because OpenSSL "ca" command can not find the required "database" option in the configuration file. For example, if you have th...
2016-09-08, 1635👍, 0💬

OpenSSL "ca" Error "lookup failed for ca::policy"
Why I am getting the "variable lookup failed for ca::policy" error when running OpenSSL "ca" command? You are getting the "variable lookup failed for ca::policy" error, because OpenSSL "ca" command can not find the required "policy" option in the configuration file. For example, if you have the foll...
2016-09-08, 1184👍, 0💬

OpenSSL "ca" Error "lookup failed for ca::default_md"
Why I am getting the "variable lookup failed for ca::default_md" error when running OpenSSL "ca" command? You are getting the "variable lookup failed for ca::default_md" error, because OpenSSL "ca" command can not find the required "default_md" option in the configuration file. For example, if you h...
2016-09-08, 1160👍, 0💬

OpenSSL "ca" Error "lookup failed for ca::serial"
Why I am getting the "variable lookup failed for ca::serial" error when running OpenSSL "ca" command? You are getting the "variable lookup failed for ca::serial" error, because OpenSSL "ca" command can not find the required "serial" option in the configuration file. For example, if you have the foll...
2016-09-08, 1049👍, 0💬

OpenSSL "ca" Error "cannot lookup how many days ..."
Why I am getting the "cannot lookup how many days to certify for" error when running OpenSSL "ca" command? You are getting the "cannot lookup how many days to certify for" error, because OpenSSL "ca" command can not find the required "default_days" option in the configuration file. For example, if y...
2016-09-08, 671👍, 0💬

Start OpenSSL on Windows Systems
How to start OpenSSL? Where is it located? I have installed OpenSSL for Windows 0.9.8h on my Windows computer. If you have OpenSSL for Windows installed, you can start the "openssl" command using these steps: 1. Go to the "C:\Program Files\GnuWin32\bin" folder. 2. Find openssl.exe and double-click o...
2016-09-04, 768👍, 0💬

Download OpenSSL 0.9.8h for Windows
How to download OpenSSL for Windows? I heard that OpenSSL is nice free tool to manage keys and certificates. You can download OpenSSL Windows version using these steps: 1. Go to the OpenSSL for Windows Web site. 2. Go to the line: "Complete package, except sources - Setup - 4658384 - 4 December 2008...
2016-09-04, 648👍, 0💬

Other OpenSSL Versions for Windows
Any other versions of OpenSSL for Windows systems? Yes, here is a collection of tutorials on other OpenSSL versions for Windows compiled by FYIcenter.com team. Download OpenSSL 0.9.8h for Windows Install OpenSSL 0.9.8h on Windows Start OpenSSL on Windows Systems   ⇒⇒OpenSSL Tutorials
2016-09-04, 440👍, 0💬

Simple Working Configuration File for OpenSSL "ca"
Where to find a simple configuration file example for the OpenSSL "ca" command? Here is a simple configuration file example for the OpenSSL "ca" command: # Unnamed section of generic options # ------------------------------ ------------------------------ ------# Section for the "default_ca" option # ...
2016-09-04, 350👍, 0💬

OpenSSL "policy" Options for "ca" Command
What are policy options in the configuration file for the OpenSSL "ca" command? Policy options in the configuration file are used by the OpenSSL "ca" command for 2 purposes: Defines validation rules for DN (Distinguished Name) fields. Defines the order of DN (Distinguished Name) fields in the certif...
2016-09-04, 331👍, 0💬

OpenSSL - Certificate Management Toolkit - 23 Tutorials
Do you want to learn how to use OpenSSL as a certificate management tool? Here is a collection of 23 easy-to-follow tutorials on OpenSSL: How to download and install OpenSSL on Windows systems? How to print out X.509 certificate information? How to connect to a HTTPS Web server? How to validate an X...
2012-12-07, 3911👍, 0💬

OpenSSL "verify -CAfile" - Specify Root CA Certificate
How to specify the root CA certificates that close the signing chain for the server certificate for OpenSSl "verify" command? I have downloaded the root CA certificate in a file. If you have the root CA certificate downloaded in a file, you can provide it to the OpenSSL "verify" command using the "-...
2012-07-24, 6520👍, 0💬

OpenSSL "verify -untrusted" - Specify Untrusted Certificate
How to specify those intermediate CA certificates that form the signing chain for the server certificate for OpenSSl "verify" command? I have the certificate chain from the server saved in a file. If you have the server certificate chain saved in a file, you can provide it to the OpenSSL "verify" co...
2012-07-24, 6232👍, 0💬

OpenSSL "verify" - Verify or Validate Certificate
How to verify or validate a certificate using OpenSSL "verify" command? I got a certificate from the Web site server and want to see if it is valid. If you have a certificate stored in a file, you can try to validate it or verify it with the OpenSSL "verify" command as shown below: C:\Users\fyicente...
2012-07-24, 6191👍, 0💬

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