Convert CRT to BKMK

Understanding crt and bkmk file formats

CRT files are typically used to store digital certificates, often in the X.509 format. These certificates are used for secure communications, authentication, and encryption in various applications, such as web servers and email clients.

BKMK files, on the other hand, are bookmark files. The format is not standardized and can refer to bookmarks used in different software, such as eBook readers, web browsers, or specialized applications. The content of a BKMK file usually includes references or links to specific locations within documents or web pages.

Is direct crt to bkmk conversion possible?

There is no direct or standard method to convert a CRT certificate file to a BKMK bookmark file, as they serve entirely different purposes. CRT files contain cryptographic data, while BKMK files store navigation or reference information. If you need to reference a CRT file within a BKMK file (for example, as a bookmark to a file location), you would need to manually create a bookmark entry pointing to the CRT file's location.

How to create a bkmk file referencing a crt file

If your goal is to bookmark the location of a CRT file for quick access, you can create a simple BKMK file manually. For example, if your application supports plain text bookmarks, you can create a file with the following content:

/path/to/your/certificate.crt

Save this file with a .bkmk extension. The exact format may vary depending on the software you use for bookmarks.

Recommended software for managing crt and bkmk files

• CRT files: Use OpenSSL for viewing and managing certificate files. Many operating systems also have built-in certificate managers.
• BKMK files: Use the specific application that created the BKMK file, such as Calibre for eBooks or your preferred web browser for web bookmarks.

Alternative approaches

If you need to convert a CRT file to another format (such as PEM or DER), use OpenSSL with commands like:

openssl x509 -in certificate.crt -outform PEM -out certificate.pem

For bookmarks, use the export or import features of your bookmark management software, typically found under File → Export or File → Import.