PHP Secure Communications Library

A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps

The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp, CAdES JSON Web Signature/Token in pure JavaScript.

JavaScript generic ASN.1 parser

Reading and Validating In App Purchase Receipt Locally.

Python ASN.1 library with a focus on performance and a pythonic API

ASN1js is a pure JavaScript library implementing a full ASN.1 BER decoder and encoder.

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

ASN.1 parsing, encoding and decoding.

en-crypt, de-crypt, si-gn, ve-rify - smime, pdf, xades and plain files in pure python

ASN1bean (formerly known as jASN1) is a Java ASN.1 BER and DER encoding/decoding library

ETSI ITS G5 GeoNetworking stack, in Java: CAM-DENM / ASN.1 PER / BTP / GeoNetworking

X.509 certificate linter, written in Go

A C++11 ASN.1 BER Encoding and Decoding Library

A Safe #[no_std] ASN.1 Codec Framework

BER/DER parser written in pure Rust. Fast, zero-copy, safe.

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

Project of Multi-protocol Test Tool opensourced by Ericsson

ASN.1 modules for pyasn1 library

Embeddable ASN.1 (DER) and X.509v3 decoder

Web components for viewing lists of certificates and certificates

Free C++ ASN.1:2008 coder/decoder

Abstract Syntax Notation One (ASN.1) binary parser to support Distinguished Encoding Rules (DER) in .NET

My own realization of ASN.1:2008 test suite

Qt Creator plugin for asn1scc - ASN.1/ACN compiler for embedded systems

ASN.1 schema parsing and code generation

SNMP server in pure Python

ASN.1/DER, PEM for Node.js

Ruby ASN.1 library