12 Oct 2007

Removing a passphrase from an SSL Key 

By - Apache, Quick Tip 28 Comments

The typical process for creating an SSL certificate is as follows:

 # openssl genrsa -des3 -out www.key 2048

Note: When creating the key, you can avoid entering the initial passphrase altogether using:

# openssl genrsa -out www.key 2048

At this point it is asking for a PASS PHRASE (which I will describe how to remove):

 Enter pass phrase for www.key:
 # openssl req -new -key www.key -out www.csr

Next, you will typically send the www.csr file to your registrar. In turn, your registrar will provide you with the .crt (certificate) file.

From a security standpoint utilizing a passphrase, is a good thing, but from a practical standpoint not very useful.

For instance, what happens when your server reboots/crashes at 3am? Or better, what happens in 6 months when you reboot your machine, and you don’t remember the password? Well, one thing is for sure, your web server will not be online.

I suggest removal of the passphrase, you can follow the process below:

Always backup the original key first (just in case)!

 # cp www.key www.key.orig

Then unencrypt the key with openssl. You’ll need the passphrase for the decryption process:

 # openssl rsa -in www.key -out new.key

Now copy the new.key to the www.key file and you’re done. Next time you restart the web server, it should not prompt you for the passphrase.

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28 Responses to “Removing a passphrase from an SSL Key”

  1. mwarden says:

    Thank you for sharing this. This is exactly what I needed, and you are dead-on correct about passphrases in ssl keys not being very practical.

  2. wika says:

    thanks man, exactly what i needed

  3. Alexis says:

    Thanks! this is essential for all services to start in a remote server!

  4. Shivakumar Nagarajan says:

    Thank You!!! Gentlemen, it works!

  5. Tommy says:

    I can remove passphrase and not need renew the SSL cert now.

    Thank very much.

  6. Commercial cert : where to store passphrase ? stmp related - Zimbra :: Forums says:

    [...] Removing a passphrase from an SSL Key Remove the passphrase, and put the new key in your zimbra directory. [...]

  7. Santiago says:

    Thanks a lot, it worked perfect :)

  8. Slavi says:

    Thanks! I was able to remove the passphrase successfully.
    I was prompted for a pwd for every httpd restart.

  9. charredTowne says:

    Thanks! I accidentally (out of habit from working with a single site over the past few years) added the requirement for a passphrase to a client’s web server. They weren’t too happy. Using your advice I was able to remove the passphrase and now everyone is back on track! Thanks a ton!

  10. jeff says:

    thank you so much, this is exactly what I am looking for

  11. Vereb says:

    Thank you for your help our Apache server is running again.

  12. Jay S says:

    Wow, you are a life saver!

  13. selva says:

    hi,

    unable to start httpd service bcz i dont know the passpharse..pls say how to change or remove.

  14. Mahbub says:

    Thanks a lot. It just saved me from some annoyances.

  15. Warning: cannot get RSA private key - Zimbra :: Forums says:

    [...] TLS key file is stored.. Then delete the passphrase from that file.. How to delete passphrase: Removing a passphrase from an SSL Key Restart [...]

  16. Zimbra don't receive mails from gmail - Zimbra :: Forums says:

    [...] where the TLS_keyfile is stored on your server… and then remove the passphrase from that file: Removing a passphrase from an SSL Key [...]

  17. Todd says:

    Thank you for posting this how-to! It was very helpful. Have a great day!

  18. Asgher Ali says:

    thank you for sharing this information. because each time on system reboot i had to start server manually and provide ssl pass phrase but now it is working well without pass phrase. thank you once again

  19. Justin says:

    This was perfect for me as well. I have several sites hosted on the same box and it makes no sense to have to type in a passphrase for any single site when restarting apache. Thanks for the solution!

  20. Boris says:

    Thank you as well. I have to able to restart the webserver via webinterface – and there i can’t provide a password. So this was exactly what i needed!

  21. Chidra says:

    Merci its works

  22. filmy says:

    thanks a lot for help!

  23. Brian says:

    Phew! Thanks for the help!

  24. Matt says:

    Many, many thanks! This saved my ass on a server upgrade.

  25. nerdtron says:

    Thank you! I have spent days figuring out how to correctly install a proper certificate on our email server.

    Thanks again!

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