SSL certificates are used to provide secure communication over the internet. These certificates are issued in various formats, including .pem, .cer, .jks, .pfx, .der, .p12, .crt and .p7b files. In this article, we will explore how to convert SSL PEM files to CRT and Key files in Cent0s 7. We will use OpenSSL commands to make this conversion.
Prerequisites
To complete the conversion process, you will need to have OpenSSL installed on your Cent0s 7 system. You can check if OpenSSL is installed by running the following command:
“`
$ openssl version
If OpenSSL is not installed, you can install it using the following command:
$ sudo yum install openssl
A key takeaway from this text is that OpenSSL can be used to convert SSL PEM files to CRT and Key files in Cent0s 7, which is useful for providing secure communication over the internet. The conversion process involves using commands in the terminal, and verifying the contents of the resulting files to ensure that the conversion was successful.
Step 1: Convert PEM to CRT
To convert a SSL PEM file to a CRT file, you can use the following command:
$ openssl x509 -in mycert.pem -out mycert.crt -outform der
In the above command, replace mycert.pem with the name of your PEM file and mycert.crt with the desired name of your CRT file.
One key takeaway from this text is that OpenSSL commands can be used to convert SSL PEM files to CRT and Key files on Cent0s 7. It is important to have OpenSSL installed on the system before attempting the conversion process. Verifying the contents of the converted files can ensure that the conversion was successful.
Step 2: Convert PEM to Key
To convert a SSL PEM file to a Key file, you can use the following command:
$ openssl rsa -in mycert.pem -out mykey.key -outform der
In the above command, replace mycert.pem with the name of your PEM file and mykey.key with the desired name of your Key file.
One key takeaway from this text is that SSL certificates can be issued in various formats and in this article, we explored how to convert SSL PEM files to CRT and Key files in Cent0s 7 using OpenSSL commands. It is important to note that OpenSSL must be installed on the system in order to complete the conversion process. Additionally, to verify the conversion was successful, the contents of the CRT and Key files should match the original PEM file.
Step 3: Verify the Conversion
To verify that the conversion was successful, you can check the contents of the CRT and Key files using the following commands:
$ cat mycert.crt
$ cat mykey.key
These commands will display the contents of the CRT and Key files respectively. If the contents match the original PEM file, then the conversion was successful.
FAQs for cent0s 7 convert ssl pem to crt and key
What is the purpose of converting SSL pem to crt and key?
When it comes to securing the communication between a web server and its clients, SSL (Secure Socket Layer) plays a crucial role. It is a protocol that allows encrypted transmission of data over the network. In order to implement SSL on a web server, you need two components – a certificate and a private key. The certificate is issued by a trusted certificate authority (CA) and contains information about the server’s identity. The private key is stored on the server and is used to authenticate the server and decrypt the data. If you have a pem file containing both the certificate and the private key, you can convert it to separate crt and key files to make it compatible with certain web servers and software.
How do I convert a pem file to crt and key on CentOS 7?
To convert a pem file to crt and key on CentOS 7, you can use the OpenSSL command-line tool. First, you need to extract the certificate and the private key from the pem file using the following commands:
These commands will create two new files – server.crt and server.key – containing the certificate and the private key, respectively. You can then use these files in your web server configuration to enable SSL.
Are there any limitations to converting pem to crt and key?
It’s worth noting that converting a pem file to crt and key doesn’t work in all cases. Some web servers and software require the certificate and the private key to be in a specific format, and converting them to a different format may result in compatibility issues. Additionally, the process of converting the pem file may cause the loss of some metadata associated with the certificate, such as the CA chain or the expiration date. Therefore, before making any changes to the certificate and private key files, it’s important to check the documentation of your web server or software to make sure the conversion is supported and won’t cause any issues.
Can I automate the conversion of pem to crt and key?
Yes, you can automate the conversion of pem to crt and key using a script or a tool that uses OpenSSL. This is especially useful if you have to convert multiple pem files or if you need to do it frequently. However, it’s important to be cautious with automation, as it may introduce security risks if not properly secured. It’s recommended to test your automation script or tool thoroughly before putting it into production, and to have appropriate security measures in place to prevent unauthorized access to the certificate and private key files.