A PHP library to encode and decode arbitrary ASN.1 structures using ITU-T X.690 encoding rules.

A PHP library for ASN.1 DER encoding and decoding.

ASN.1 Decoder in swift.

An ASN.1 Library for PHP.

Dump the structure of an ASN.1 file.

ASN.1 encoding library

BER I/O Library for C++

ASN.1+ implements an extensible Go-based ASN.1 API supporting subsets of ITU-T X-Series recommendations 680 and 690 -- NOT YET READY FOR PRODUCTION USE