What is MIME type "application/cms"?

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

application/cms is a MIME type that handles data encoded in the Cryptographic Message Syntax format.
It ensures the safe delivery of encrypted and digitally signed information.

Files in this format usually have the CMSC extension.
This standard format bundles cryptographic algorithms with the message content to prevent tampering.

• Data protection: Manages encryption and digital signatures.
• Verification: Confirms authenticity and integrity of the data.
• Interoperability: Provides a consistent structure across different systems.

This MIME type is often used in secure email systems, software distribution, and any application where data security is essential.
For deeper technical details, consult the RFC 5652 specification.

Associated file extensions

.cmsc

Usage Examples

HTTP Header

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

    Content-Type: application/cms
  

HTML

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

    <a href="file.dat" type="application/cms">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', 'application/cms');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.cmsc