jsrsasign
opensource free pure JavaScript cryptographic library supports RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp and CAdES and JSON Web Signature(JWS)/Token(JWT)/Key(JWK)
@ilihub/dsa
A collection of useful TypeScript functions and utilities for data structures and algorithms.
dsabp-js
DSA (drednot.io) Blueprint implementation and API for Node.js and the browser, in TypeScript.