Tune down hash parameters again, oof

src/Auth.hs

@@ -12,19 +12,19 @@ import Database.Persist.Sql (ConnectionPool, runSqlPool)
 
 -- | Length of the salt in byte.
 saltLength :: Int
-saltLength = 32
+saltLength = 16
 
 -- | Length of the hash in byte.
 hashLength :: Int
-hashLength = 64
+hashLength = 16
 
 -- | Options for hashing.
 hashOptions :: Argon2.Options
 hashOptions = Argon2.Options {
     Argon2.iterations = 1,
-    Argon2.memory = 64 * 1024,  -- amount of KiBs, should equal 64 MiB
+    Argon2.memory = 32 * 1024,  -- amount of KiBs, should equal 64 MiB
     Argon2.parallelism = 2,
-    Argon2.variant = Argon2.Argon2i,
+    Argon2.variant = Argon2.Argon2id,
     Argon2.version = Argon2.Version13
 }