since 2000
Opening a CERT File
The CERT file type is primarily associated with OpenSSL.
What is a CERT file?
CERT files mostly belong to OpenSSL. CERT files are not simple text files but represent digital certificates used in secure communications.
These files store a digitally signed certificate that contains details such as a public key and identity data. It follows standards like X.509 to allow systems and applications to verify authenticity.
They are created or managed using tools such as OpenSSL, Java Keytool, and even proprietary tools like Z3X Samsung Tool Pro. Some instances use a compressed format (e.g., GZIP) to package the certificate data, as seen with OpenVPN. They serve in authentication, ensuring that the connecting parties are genuine. They also verify integrity in encrypted sessions. For more technical details and usage guidelines, you may consult the documentation provided by SSL.com or the OpenSSL website at OpenSSL. Further details on standards are available in the RFC 5280 document.
FilExt.com note: In summary, if you have a CERT file, it is meant to be processed with certificate management tools that can read and validate its contents as part of a secure system setup.
These files store a digitally signed certificate that contains details such as a public key and identity data. It follows standards like X.509 to allow systems and applications to verify authenticity.
FilExt.com note: In summary, if you have a CERT file, it is meant to be processed with certificate management tools that can read and validate its contents as part of a secure system setup.
How can I open a CERT file?
You need a suitable software like OpenSSL to open a CERT file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CERT file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CERT file directly in the browser:. Just drag the file onto this browser window and drop it.
Online CERT Text Viewer
or drag and drop it here
Read our privacy guarantee in Filext’s terms and privacy policy
Please allow ads on our site
This helps us keep our servers running. Then re-upload your file to view it.Click here to see how to disable the ad blocker for filext.com
Programs that open and convert CERT files:
- OpenSSL
See the previous paragraphs to learn more about the main application. CERT files are often referred to as OpenSSL data files because this type of file is primarily created or used by this software.
- Netscape Navigator (Netscape Certificate Index) by NetscapeCERT data files contain data belonging to the Netscape Navigator. CERT stands for Netscape Certificate Index. Netscape Navigator is a proprietary web browser designed for the purpose of web navigation. Netscape Navigator was big success, based on the number of concurrent users in the 1990s. Support for Netscape Navigator is no longer supported by any operating systems.
CERT file extension format:
Why is it important to know the file format? This is the only way to find out which program to use to open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. When there is a problem with a file, the first step to solving it is to determine the file format. Our analysis of the CERT files produces the following result:
CERT is seldom used as a file extension and is used by different programs with different formats. However, the following two file formats are common:
- 45% of all CERT files store the data in the certificate file format. A digital certificate is a unique, digitally signed document which authoritatively identifies the identity of an individual or organization. Using public key cryptography, its authenticity can be verified to ensure that the software or website you are using is legitimate. These files are plain text, which means they can be viewed with any text editor such as Windows Editor, Nano for Linux, and TextEdit for macOS. The files are on average 1 KB in size and range from 1 KB to 2 KB. This file type is new and state-of-the-art. Certain words are almost always found in the files, such as ----BEGIN CERTIFICATE---- and GCSqGSIb. The following filename is common: certificate.cert or okta (1).cert. These files can be linked to myselfsigncert and auth.
- 10% of all CERT files start with the bytes 82 9F F1 F1 48 2A 9E 2C 19 8B 98 DF 90 BA EA 52 crucial for this file format. These are binary files, so they do not contain words or text. The files are on average 1 KB in size and range from 1.2 KB to 1.6 KB.
All the rest of the CERT files (45%) have different formats, the following 4 formats can be found: Samsung. They are often associated with server, ovpn, public, taflish, cams or node. You can get all the details of your CERT file by dragging it onto this page or by clicking the button "Choose your .cert file to analyze" above.
Technical Data for CERT File Extension
File classification:
Data
a cert certificate file is a special file format and should only be edited and saved with the appropriate software.
How to solve problems with CERT files
- Associate the CERT file extension with the correct application.
- Update your software that should actually open certificate files. Because only the current version supports the latest CERT file format. Search, therefore, e.g. on the manufacturer website after an available OpenSSL update.
- To make sure that your CERT file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
- Click here to open your .CERT file online - secure, fast, and no downloads needed.