jsrsasign

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/Key in pure JavaScript.

Public page is https://kjur.github.io/jsrsasign .

Your bugfix and pull request contribution are always welcomed :)