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Generate a CSR (certificate signing request) for an SSL certificate

Generate a CSR using Java Keytool

The Java Keytool is a command line tool which generates public key / private key pairs and stores them in a Java KeyStore. The keytool executable is distributed with the Java SDK (or JRE). To execute it, open a command line (cmd, console, shell etc.). and change directory to the bin directory.

Type keytool and press Enter for a set of commands and assorted instructions.

Create a New Keystore

Use the keytool command to create your new key-CSR pairing. Enter the following:

keytool -genkey -alias server -keyalg RSA -keysize 2048 -keystore yourdomain.jks

‘Yourdomain’ is the name of the domain you are securing. Confirm that the information is correct by entering ‘yes’ when prompted.

Next you will be asked for your password to confirm.

Generate a CSR with your New Keystore

Use keytool to create the CSR by entering the following:

keytool -certreq -alias server -keyalg RSA -file yourdomain.csr -keystore yourdomain.jks

Enter the keystore password.

Microsoft Management Console [Windows]

Add certificate(s) to MMC

In your Windows search feature, enter mmc. Click it to launch the Microsoft Management Console application.

From File, click Add/Remove Snap-in.

Click Certificates and then click Add.

Select Computer account, and then click Next.

Select Local computer, and then click Finish.

Click OK.

Generate CSR and private key

From the left-hand menu in the MMC, expand Certificates (Local Computer) and then Personal. Right-click Certificates and navigate to the following menus: All Tasks > Advanced Operations > Create Custom Request.

Click Next.

Click Active Directory Enrollment Policy.

From Template, click Web Server. Make sure that the Request format is PKCS #10 and click Next.

Click the downward-facing arrow next to Details and then select Properties.

Navigate to the Subject tab. From the Type menu, select the following values, enter the relevant values and select Add. For example:

Common name: URL [packstation.{yourorganization}.com]

Organization: Your Organization

Locality: City

State: State/Province

Country: Country

Click the General tab and enter a Friendly name for the certificate.

Go to the Private Key tab. From the Key options drop-down, select Make private key exportable. Click OK and then click Next.

Browse for the location where you want to save the file. Enter a File Name and click Finish.

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