![]() ![]() Create a CA certificate: -extensions v3_ca.Create a new self-signed certificate: -new -x509.Our overrides to the "openssl req" command are: Into the configuration, so we will specify our overrides on the command line. For this, we want to override some of the defaults we just put Time to pick a secure passphrase and put it in a safe place.Īll the preparation is now in place for creating our self-signed rootĬertificate. Request, you will be prompted for the passphrase. ![]() Each time you use the CA certificate to sign a In order to protect ourselves from unauthorized use of our CA certificate, # Default values for the above, for consistency and less typing.Ġ.organizationName_default = The Sample CompanyĪuthorityKeyIdentifier = keyid:always,issuer:always StateOrProvinceName = State or Province Name (full name)ĬountryName = Country Name (2 letter code)ĬommonName = Common Name (hostname, IP, or your name) LocalityName = Locality Name (city, district) OrganizationalUnitName = Organizational Unit Name (department, division) String_mask = nombstr # permitted charactersĭistinguished_name = req_distinguished_nameĠ.organizationName = Organization Name (company) ĭefault_keyfile = key.pem # name of generated keysĭefault_md = sha512 # message digest algorithm Is "openssl req ", so the section is titled. The section processed when certificate requests are created. Not directly referenced in the configuration file, but is included into Text that identifies the owner of the certificate when it is viewed. The first thing we need to specify is the Distinguished Name. We now need to add the section that controls how certificates are created,Īnd a section to define the type of certificate to create. Include one or more other sections by referring to them, which helps to make The configuration file is divided into sections, which are selectively readĪnd processed according to openssl command line arguments. Good thing, because there is a lot to specify. With OpenSSL, a large part of what goes into a certificate depends on theĬontents of the configuration file, rather than the command line. Where this is I am arbitrarily going to create it in my home directory. This document will not cover the installation procedure.įirst, we will create a directory where we can work. You will need an installed copy of OpenSSL for this, which is available fromĬhances are it is already installed on your machine. Obtaining a commercially signed certificate is the only realistic choice. Note: If you are in the business of running a commercial secure site, We can trust additional rootĬAs (like ourselves) by importing their CA certificates. That someone else is who they say they are. Root certificates, we are saying that we trust them when they guarantee Importing (actually, by the browser vendors incorporating) their trusted Into the people and organizations for whom they sign certificates. Where the commercial CAs come in: they purport to do extensive research We are no different from the commercial root CAs.Ĭlients will only import our root certificate if they trust us. Trusted until our root certificate is imported. Without spending unnecessary money on having our certificates signed.Ī drawback is that browsers will still complain about our site not being Why be our own root CA? So that we can take advantage of SSL encryption Those who want to start creating certificates right away without reading These procedures were developed using OpenSSL 0.9.6,, on Linux. Instead, we will become our own root CA, and sign our own certificates. Not covered is dealing with a commercial root certificate authority (CA). This document covers a very specific, limited purpose, but one that meetsĪ common need: preventing browser, mail, and other clients from complainingĪbout the certificates installed on your server. ![]()
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