There are 3 repositories under asn1 topic.
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.
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.
Graphical WPF-based Abstract Syntax Notation One (ASN.1) DER editor
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
🧪 PotentCodables - A potent set of implementations and extensions to the Swift Codable system
Managed .NET (C#) utility library for working with PEM files with DER/ASN.1 encoding
Project of Multi-protocol Test Tool opensourced by Ericsson
Web components for viewing lists of certificates and certificates
Generates Rust Code and optionally compatible Protobuf schema files from ASN.1 definitions.
SNMP server in pure Python
A Python library to ease the development of encoders and decoders for various protocols and file formats, especially telecom ones. Provides an ASN.1 compiler and a CSN.1 runtime.
Abstract Syntax Notation One (ASN.1) binary parser to support Distinguished Encoding Rules (DER) in .NET
Web app that can hash/hmac, encrypt/decrypt, and sign/verify the data, debug JWT tokens, parse ASN1 structures, compute diffs, and more