What is MIME type "application/x-bdoc"?

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

application/x-bdoc is used for container files that store digitally signed documents. It bundles the original document with its cryptographic signature and related metadata.

This format increases trust by ensuring the document’s integrity and authenticity. It is crucial in legal and secure communications where proof of origin and content integrity matter.

Files using this MIME type include containers such as BDOC and ASICE.

• Digital signatures: They wrap the document with a signature to verify the issuer.
• Data integrity: They protect against unauthorized modifications.
• Secure document transmission between trusted parties.
• Compliance with electronic legal signing standards.

The container design supports both verifying the signer’s credentials and confirming that the document has not been altered. For further technical details, visit ETSI or check file information on Filext.

Associated file extensions

.asice, .bdoc

Usage Examples

HTTP Header

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

    Content-Type: application/x-bdoc
  

HTML

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

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

Associated file extensions

.asice, .bdoc