Use 512-bit AES-256 SIV and SHA-512 user keys
Use 512-bit AES-256 SIV and SHA-512 user keys

ngzax/urbit,belisarius222/arvo,urbit/urbit,cgyarvin/arvo,solri/arvo,jfranklin9000/urbit,Fang-/arvo,eglaysher/arvo,ohAitch/arvo,joemfb/arvo,jfranklin9000/urbit,jfranklin9000/urbit,urbit/urbit,jfranklin9000/urbit,urbit/urbit,urbit/urbit,jfranklin9000/urbit,belisarius222/arvo,urbit/urbit,joemfb/arvo,ohAitch/arvo,ngzax/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit,urbit/urbit,ngzax/urbit,jfranklin9000/urbit,ngzax/urbit,jfranklin9000/urbit,ngzax/urbit,cgyarvin/arvo