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OpenSSL "ans1parse" - Configuration File for DH Private Key
Can I build a DH private key from an OpenSSL configuration file? Yes, you can build a DH private key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_dh_pri_key.cnf asn1 = SEQUENCE:dh_pri_key [dh_pri_key] version =...
2016-09-26, 4273👍, 0💬

OpenSSL "ans1parse" - Configuration File for DSA Private Key
Can I build a DSA private key from an OpenSSL configuration file? Yes, you can build a DSA private key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_dsa_pri_key.cnf asn1 = SEQUENCE:dsa_pri_key [dsa_pri_key] vers...
2016-09-26, 4257👍, 0💬

OpenSSL "ans1parse" - Configuration File for DSA Public Key
Can I build a DSA public key from an OpenSSL configuration file? Yes, you can build a DSA public key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_dsa_pub_key.cnf asn1 = SEQUENCE:dsa_pub_key [dsa_pub_key] algori...
2016-09-26, 4249👍, 0💬

OpenSSL "req" - Good Sample openssl.conf
Where can I get a good sample configuration file openssl.conf for OpenSSL "req" command? Below is a good sample configuration file openssl.conf for OpenSSL "req" command with explanations: C:\Users\fyicenter>type openssl.conf # Unnamed section of generic options # ... # --------------------------...
2016-09-23, 593👍, 0💬

OpenSSL "req -new" - CSR Attributes
How to add attributes in new CSR using OpenSSL "req -new" command? I was asked to create a CSR with a challenge password an attribute. In order to add attributes to new CSR created by the OpenSSL "req -new" command, first you need to write attribute options in a named section in the configuration fi...
2016-09-23, 566👍, 0💬

OpenSSL "ca" Command
Where to find tutorials on using OpenSSL "ca" command? Here is a collection of tutorials on using OpenSSL "ca" command compiled by FYIcenter.com team. OpenSSL "ca" Command Options OpenSSL "ca" - Create CSR for Testing OpenSSL "ca" - Create CA Certificate for Testing OpenSSL "ca" Error "./demoCA/newc...
2016-09-23, 489👍, 0💬

OpenSSL "req -x509 -extensions" - Test Self-Signed Certificate V3 Extensions
How to run OpenSSL "req -509" command to generate self-signed certificate with x.509 v3 extensions? I have x509_extensions option defined in the configuration file. If you want to run OpenSSL "req -509" command to generate self-signed certificate with x.509 v3 extensions, you can follow this example...
2016-09-23, 278👍, 0💬

OpenSSL "ca" Error "unable to open ./demoCA/index.txt"
Why I am getting the "unable to open './demoCA/index.txt'" error when running OpenSSL "ca" command? If you are running the OpenSSL "ca" command installed with the slproweb binary package for Windows, you may get the "unable to open './demoCA/index.txt'" error as shown below: C:\Users\fyicenter>\l...
2016-09-18, 885👍, 0💬

OpenSSL "ca" Command Options
What can I use OpenSSL "ca" command for? What are options supported by the "ca" command? OpenSSL "ca" command is a CA (Certificate Authority) tool. It can be used to sign CSR (Certificate Signing Request) in a variety of forms and generate CRLs. It also maintains a text database of issued certificat...
2016-09-18, 320👍, 0💬

OpenSSL "ca" - Create CSR for Testing
How to generate a new CSR to test the OpenSSL "ca" command? If you need some CSR (Certificate Signing Request) for testing purpose, you can generate them using the OpenSSL "req" command as shown below: C:\Users\fyicenter>\local\O penSSL-Win32\bin\openssl.exeOpenSSL> req -newkey rsa:1024 -out t...
2016-09-18, 293👍, 0💬

OpenSSL "ca" - Create CA Certificate for Testing
How to generate a new root CA certificate to test the OpenSSL "ca" command? If you need some root CA (Certificate Authority) certificates for testing purpose, you can generate them using the OpenSSL "req" command as shown below: C:\Users\fyicenter>\local\O penSSL-Win32\bin\openssl.exeOpenSSL> ...
2016-09-18, 286👍, 0💬

OpenSSL "ca" - "error while loading serial number"
Why I am getting the "error while loading serial number" error when running OpenSSL "ca" command? If you are running the OpenSSL "ca" command installed with the slproweb binary package for Windows, you may get the "error while loading serial number" error as shown below: C:\Users\fyicenter>\local.. .
2016-09-13, 1884👍, 0💬

OpenSSL "ca" Error "failed to update database TXT_DB error number 2"
Why I am getting the "failed to update database TXT_DB error number 2" error when running OpenSSL "ca" command? If you are using the OpenSSL "ca" command to sign a CSR that has the same DN (Distinguished Name) fields as an old CSR you have signed before, you will get the "failed to update database T...
2016-09-13, 452👍, 0💬

OpenSSL "ca" Error "stateOrProvinceName field needed to be the same"
Why I am getting the "The stateOrProvinceName field needed to be the same in the CA certificate (...) and the request (...)" error when running OpenSSL "ca" command? If you are running the OpenSSL "ca" command installed with the slproweb binary package for Windows, you may get the "The stateOrProvin...
2016-09-13, 352👍, 0💬

OpenSSL "ca" - Track CSR Signing History
How to track CSR certificate signing history? I want to know how many CSR I have signed with the OpenSSL "ca" command so far. OpenSSL "ca" command automatically tacks your CSR signing history for you. Each time you sign a CSR and generate a new certificate, it will: Save a copy of the new certificat...
2016-09-13, 284👍, 0💬

OpenSSL "ca" - Sign CSR with CA Certificate
How to sign a CSR with my CA certificate and private key using OpenSSL "ca" command? I think my configuration file has all the settings for the "ca" command. If you have you configuration file ready and all the required directories and files created, you can sign a CSR with your CA certificate and p...
2016-09-13, 271👍, 0💬

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, 736👍, 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>\local\O penSSL-Win32\bin\...
2016-09-10, 372👍, 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, 339👍, 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, 331👍, 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>\local\O penSSL-Win32\bin\...
2016-09-10, 294👍, 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, 2198👍, 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, 721👍, 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, 284👍, 0💬

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