Patent ID: 8270665

Claim:
A method of hiding data in a data set, the method comprising: creating a histogram of an attribute of a first data set, the histogram comprising occurrences of the attribute; selecting two adjacent occurrences in the histogram, wherein a count of one of the two adjacent occurrences is zero; and embedding a second data set in data of the first data set associated with the selected adjacent occurrences, wherein the creating and the embedding comprising: replacing an even part of the first data set with an exclusive-or of the even part and an odd part of the first data set; creating the histogram of the attribute of the even part of the first data set; embedding the second data set in data of the even part of the first data set associated with the selected occurrences; and replacing the embedded even part of the first data set with an exclusive-or of the embedded even part of the first data set and the odd part of the first data set.