1. A method comprises: dividing a string of data into a plurality of data subsets; generating a plurality of data slice subsets from the plurality of data subsets; combining two or more of the plurality of data slice subsets into a first data slice by at least one of: appending a first one of the two or more of the plurality of data slice subsets to a second one of the two or more of the plurality of data slice subsets; and forming the first data slice from the two or more of the plurality of data slice subsets; and combining another two or more of the plurality of data slice subsets into a second data slice.