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 and JSON Web Signature/Token in pure JavaScript.

Reading and Validating In App Purchase Receipt Locally.

JavaScript generic ASN.1 parser

SM2/SM3/SM4/ECDH crypto library based on OpenSSL.

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

ASN.1 parsing, encoding and decoding.

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

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

A Safe #[no_std] ASN.1 Codec Framework

Graphical WPF-based Abstract Syntax Notation One (ASN.1) DER editor

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

An implementation of ASN.1 for Swift

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

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

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

Kotlin Multiplatform Crypto/PKI Library and ASN1 Parser + Encoder

Avrotize is a command-line tool for converting data structure definitions between different schema formats, using Apache Avro Schema as the integration schema model.