ASN1 Packages

RFC5280 extension structures for asn1.js

RFC2560 structures for asn1.js

asn1js is a pure JavaScript library implementing this standard. ASN.1 is the basis of all X.509 related data structures and numerous other protocols used on the web

💯 PEM-to-JWK and JWK-to-PEM for RSA keys in a lightweight, zero-dependency library focused on perfect universal compatibility.

Lightweight, Zero-Dependency RSA and EC/ECDSA crypto for Node.js and Browsers

Pure JavaScript X509 certificate tools for Node.js

ASN.1/DER, PEM for Node.js

Read basic info (subject, altnames, expiresAt, issuedAt) from a cert.pem / x509 certificate (tls / ssl / https)

VanillaJS, Lightweight, Zero-Dependency, PEM encoder and decoder.

VanillaJS, Lightweight, Zero-Dependency, ASN.1 encoder and decoder.

VanillaJS, Lightweight, Zero-Dependency, X509 schema encoder and decoder.

Lightweight, Zero-Dependency CSR (Certificate Signing Request) generator and parser for Node.js and Browsers

Read basic info (subject, altnames, expiresAt, issuedAt) from a cert.pem / x509 certificate (tls / ssl / https)

A native Javascript SNMP implementation for Node.js

RFC3280 structures for asn1.js

Universal Module for Cryptographic Key Utilities in JavaScript, including PEM-JWK converters

Generate and parse ASN1.BER objects

Generic ASN.1 parser/decoder that can decode any valid ASN.1 DER or BER structures.

Peculiar Certificate Viewer web-components makes it easy for you to display certificate related details in your web application.

An ASN.1 parser in less than 100 lines of Vanilla JavaScript, part of the Bluecrypt suite.