How to generate private key and CSR from command line. This article describes how to generate a private key and CSR (Certificate Signing Request) from the command line. You may need to do this if you want to obtain an SSL certificate for a system that does not include cPanel access, such as a dedicated server or unmanaged VPS. You can use this CSR Generator tool for free. It will automatically generate your CSR (Certificate Signing Request) and your Private Key, based on the information which you will introduce in the CSR form below.

  1. Csr Vs Private Key
  2. Generate Key And Csr
  3. Generate Certificate From Csr Private Key
  4. Certificate Private Key

Secure and easy Certificate Signing Request generation for your SSL certificates. CSR Generator security github. Generate a Certificate Signing Request. Complete this form to generate a new CSR and private key. Organizational Unit. Windows: Generate CSR for code or driver signing certificate. To request a code signing certificate or a Windows driver signing certificate, you have to provide us a certificate signing request (CSR) generated by the machine you use to sign the code. Generate CSR & private key. In MMC, expand Certificates (Local Computer). All SSL Certificates require a private key to work. The private key is a separate file that’s used in the encryption/decryption of data sent between your server and the connecting clients. A private key is created by you—the certificate owner—when you request your certificate with a Certificate Signing Request (CSR).

Generate CSR - OpenSSL


This article provides step-by-step instructions for generating a Certificate Signing Request (CSR) in OpenSSL. This is most commonly required for web servers such as Apache HTTP Server and NGINX. If this is not the solution you are looking for, please search for your solution in the search bar above.

Csr Vs Private Key

Switch to a working directory

Generate Csr From Private KeyGenerate

GNU/Linux & Mac OS X users:
Open a terminal and browse to a folder where you would like to generate your keypair

Windows Users:
Navigate to your OpenSSL 'bin' directory and open a command prompt in the same location.

Generate a CSR & Private Key:
openssl req -out CSR.csr -new -newkey rsa:2048 -keyout privatekey.key

To generate a 4096-bit CSR you can replace the rsa:2048 syntax with rsa:4096 as shown below.
openssl req -out CSR.csr -new -newkey rsa:4096 -keyout privatekey.key

Note: You will be prompted to enter a password in order to proceed. Keep this password as you will need it to use the Certificate.

Fill out the following fields as prompted:
Note: The following characters can not be accepted: < > ~ ! @ # $ % ^ * / ( ) ?.,&

Country NameUS (2 Letter Code)
State or ProvinceNew Hampshire (Full State Name)
LocalityPortsmouth (Full City name)
OrganizationGMO GlobalSign Inc (Entity's Legal Name)
Organizational Unit Support (Optional, e.g. a department)
Common (Domain or Entity name)

You should now have a Private Key (privatekey.key) which should stay on your computer, and a Certificate Signing Request (CSR.csr), which can be submitted to GlobalSign to sign your public key. Each of these files can be viewed in a plain text editor such as Notepad, TextEdit, Vi, Nano, and Notepad++.

General CSR Creation Guidelines

Generate Key And Csr

Before you can order an SSL certificate, it is recommended that you generate a Certificate Signing Request (CSR) from your server or device. Learn more about SSL certificates »

A CSR is an encoded file that provides you with a standardized way to send DigiCert your public key as well as some information that identifies your company and domain name. When you generate a CSR, most server software asks for the following information: common name (e.g.,, organization name and location (country, state/province, city/town), key type (typically RSA), and key size (2048-bit minimum).

Generate Certificate From Csr Private Key

If you aren't sure of the exact company name or location when you generate the CSR, don't worry; we can change and finalize that information during our review process before we issue the certificate.

Certificate Private Key

Once your CSR is created, you'll need to copy and paste it into the online order form when you go to purchase your SSL certificate. Online Certificate Order Form »

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