公开(公告)号：KR1020140070762A

公开(公告)日：2014-06-11

申请号：KR1020120135039

申请日：2012-11-27

Applicant: 한국과학기술정보연구원

Inventor： 윤희준 ,  노서영 ,  장행진 ,  류재철 ,  유성민 ,  정광운

IPC: G06F21/00 ,  G06F7/58 ,  H03M7/30 ,  G06F9/06

CPC classification number: G06F21/602 ,  G06F7/588 ,  G06F21/6209

Abstract: The present invention relates to a method for partially encrypting data, an apparatus thereof, a storage medium for storing a program partially encrypting data, a method for decrypting partially-encrypted data, an apparatus thereof and a storage medium for storing a program decrypting partially-encrypted data. According to an embodiment of the present invention, a method for partially encrypting data is provided. The method comprises the steps of: initializing a random generator with an initial value; creating random numbers by the random generator; matching a data block to be encrypted with a partial digit string included in the created random number sequence and, when the partial digit string is identical to a digit string on a predefined truth table, encrypting the matched data block according to encryption information corresponding to the same digit string on the truth table; and outputting the encrypted data block.

Abstract translation: 本发明涉及数据部分加密的方法及其装置，用于存储部分加密数据的程序的存储介质，用于解密部分加密的数据的方法，其装置和用于存储部分加密数据的程序解密的存储介质， 加密数据。 根据本发明的实施例，提供了一种用于部分地加密数据的方法。 该方法包括以下步骤：初始化具有初始值的随机发生器; 由随机生成器创建随机数; 使用包含在创建的随机数序列中的部分数字串来匹配要加密的数据块，并且当部分数字串与预定义真值表上的数字串相同时，根据对应于 真相表上相同的数字串; 并输出加密的数据块。