|発明の名称||CIPHER PROCESSING SYSTEM|
PROBLEM TO BE SOLVED: To provide a cipher processing system capable of encrypting plain text or decrypting cipher text at high speed and also having high safety.
SOLUTION: A cipher key used in encryption or decryption includes: link information about a tree structure data T in which a plurality of pieces of divided plain text data obtained by dividing plain text for each prescribed data length and a plurality of pieces of divided cipher text data obtained by dividing cipher text for each of the data length can all be arranged as a node n; and arrangement information about each of the divided plain text data and each of the divided cipher text data which are arranged, at random in the corresponding node n in the tree structure data, so that each of the divided plain text data can be obtained from each of the divided cipher text data, and each of the divided cipher text data can be obtained from each of the divided plain text data.
- 公立大学法人 静岡県立大学 産学連携室
- URL: https://www.u-shizuoka-ken.ac.jp/
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