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ASN.1

ASN.1 (Abstract Syntax Notation version 1) is a language designed for defining messages inside protocols. It is officially specified by the ITU organization. See the Wikipedia article for an introduction.

You can also find the official specifications:

X.680 - ASN.1 specification
X.690 - BER/CER/DER specification

Data processing

All data parsing on this website is done on the visitor browser. No remote parsing. The website do not save data elsewhere.

Github

The entire content of this site can be found on its Github repository. It is free and open source. You will see that no advertisement is done, and no data is taken from the visitors.

Site Author

Site made by Jean-Louis GUENEGO, JLG Consulting with only open source code from NPM.