What is MIME type "text/x-cryptol"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

text/x-cryptol is a MIME type that marks a file as containing Cryptol source code.
It tells the system and code editors that the file is plain text holding Cryptol language syntax. This helps with proper color-coding and editing features.
Cryptol is a domain-specific language built for describing and testing cryptographic algorithms. It lets researchers and developers write clear and verifiable definitions for how cryptographic processes work.
Files with this MIME type usually come with the file extension CRY.

Used to write specifications for encryption and cryptographic protocols
Helps in the verification of algorithm correctness
Integrates with development tools for syntax highlighting and error checking

For more details on Cryptol and its applications, visit the Cryptol project website.

Associated file extensions

.cry

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: text/x-cryptol

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="text/x-cryptol">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'text/x-cryptol');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.cry

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.