.Nm AES-XTS ,
.Nm AES-CBC ,
.Nm Blowfish-CBC ,
.Nm Camellia-CBC
.Nm Camellia-CBC ,
.Nm 3DES-CBC ,
and
.Nm 3DES-CBC .
.Nm NULL .
The default and recommended algorithm is
.Nm AES-XTS .
.Nm NULL
is unencrypted.
.It Fl i Ar iterations
Number of iterations to use with PKCS#5v2.
If this option is not specified,