asn1

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.

ASN.1 parsing, encoding and decoding.

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

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

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

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

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

X.509 certificate linter, written in Go

Project of Multi-protocol Test Tool opensourced by Ericsson

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

ASN.1 modules for pyasn1 library

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

Web components for viewing lists of certificates and certificates

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

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

SNMP server in pure Python

ASN.1 data types and UPER encoder/decoder

ASN.1 Decoder in swift.

ASN.1 schema parsing and code generation

ASN.1 TypeScript library, including codecs for Basic Encoding Rules (BER) and Distinguished Encoding Rules (DER).

My own realization of ASN.1:2008 test suite