migrate.js

function migrateCBCaccount(alias, pass, g, G){
	G = G || window.Gun;
	g = g || window.gun;
	g.get('~@'+alias).map().once(async function(data){
		var proof = await G.SEA.work(pass, data.auth.s);
		var sea = await G.SEA.decrypt(data.auth.ek, proof, null, {name: "AES-CBC"});
		if(!sea){
			alert("Error: Could not decrypt old key for one of the accounts. Please try again.");
			return;
		}
		console.log("SAVE YOUR KEYS IN CASE OF EXPLOSION:", sea.priv, sea.epriv);
		sea.pub = data.pub;
		sea.epub = data.epub;
		var auth = await G.SEA.encrypt({priv: sea.priv, epriv: sea.epriv}, proof, null, {name: "AES-GCM"});
		auth = await G.SEA.sign({ek: auth, s: data.auth.s}, sea);
		console.log('~'+sea.pub, sea, auth);
		g.get('~'+sea.pub).put({auth: auth}, function(ack){
			if(ack.err){ return alert("Error: " + ack.err) }
			alert("You should be good now, try logging in normally!");
		});
	});
}