RWould be great to get this sorted in v2 - any links you can share which you believe demonstrate a correct implementation would be appreciate @Leo 
Rhttps://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38d.pdf
my read on this is GCM handles arbitrary length plaintext and handles padding data - see screenshots of page 14 and 15
my read on this is GCM handles arbitrary length plaintext and handles padding data - see screenshots of page 14 and 15
Ri have published v2.0.0 which removes the HMAC and makes some more improvements. would very much appreciate any other review/feedback!