-# @cipher-alg: #optional the cipher algorithm for data encryption
-# Currently defaults to 'aes'.
-# @cipher-mode: #optional the cipher mode for data encryption
-# Currently defaults to 'cbc'
-# @ivgen-alg: #optional the initialization vector generator
-# Currently defaults to 'essiv'
-# @ivgen-hash-alg: #optional the initialization vector generator hash
+# @cipher-alg: the cipher algorithm for data encryption
+# Currently defaults to 'aes-256'.
+# @cipher-mode: the cipher mode for data encryption
+# Currently defaults to 'xts'
+# @ivgen-alg: the initialization vector generator
+# Currently defaults to 'plain64'
+# @ivgen-hash-alg: the initialization vector generator hash