  We construct a modular scheme which extends codes for wiretap channels of
type I for use in wiretap channels of type II. This is done by using a
concatenate and permute strategy, wherein multiple uses of the wiretap type I
code are concatenated and then the joint sequence of symbols permuted. The
choice of permutation is then encoded with a short code and appended to the
transmitted sequence. Analysis shows essentially no degradation in operational
parameters (rate, error rate, leakage) for the new code over the wiretap type
II channel when compared to those of multiple uses of the original code over
the wiretap type I channel.
