APPARATUS AND METHOD FOR ENCRYPTION USING MIXTURE OF BIT DATA

摘要

PURPOSE: A method and an apparatus for encryption using bit combination order are provided to enable recombination of bit using exclusive OR operation of data, code conversion, and pattern formation. CONSTITUTION: A bit selection unit(110) selects the bit of the fixed region of data for encryption. A first encryption unit(120) produces first encrypted data by the logical operation of bit stream including selected bit and data for encryption. A conversion unit(130) converses the bit selected from the bit selection unit to codes. A second encryption unit(140) creates the second encrypted data by recombination of the first encrypted data and the codes according to pattern formation about bit combination order. A pattern code storage unit(150) can store a pattern code table.