| 摘要 |
Provided is a data protection technique that converts original data into a secure form so that even if data registered to a system or database is leaked, information relating to original data cannot be exposed from the leaked data. Accordingly, a method of generating a template for protecting data is provided, wherein the method includes: generating a positive numbered (n) registration feature vector g (g=[g1, g2, . . . , gn]T); generating a positive number m (m<n) low-dimensional coordinates from the registration feature vector; generating at least one chaff coordinates on the m-dimensional coordinate axis with respect to the generated low-dimensional coordinates; and generating a registered template including the low-dimensional coordinates and the chaff coordinates.
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