passport-jwt
Passport authentication strategy using JSON Web Tokens
hapi-auth-jwt2
Hapi.js Authentication Plugin/Scheme using JSON Web Tokens (JWT)
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)