电子学报2011，Vol.39Issue(12)：2850-2855,6.
基于有限射影几何的细粒度数据完整性检验方法
An Integrity Check Method for Fine-Grained Data Based on Finite Projective Geometry
摘要
Abstract
Fine-grained data integrity checking methods could isolate a portion of corrupted data segments and assure the integrity of other data at the same time.They could mitigate the disastrous effect that all the data become invalid caused by accidental errors or intentional forging modification. The issues of integrity checking for fine-grained data are summarized at first. Based on the finite projective geometry theory, a novel data integrity checking method (integrity indication code) is proposed to improve the error indication efficiency. The basic idea of the method is mapping the relationship of points and lines in finite projective geometry to the check relationship of hashes and data objects, and achieving uniform crossover of all the hashes.The performances analysis and experimental results show that this code is effective with higher compression ratio.关键词
计算机取证/Hash/数据完整性/有限射影几何Key words
computer forensics/ hash/ data integrity/ finite projective geometry分类
信息技术与安全科学引用本文复制引用
陈龙,娄晓会,王国胤..基于有限射影几何的细粒度数据完整性检验方法[J].电子学报,2011,39(12):2850-2855,6.基金项目
国家自然科学基金(No.60573068) （No.60573068）
重庆市教委科学技术研究项目(No.KJ110505) （No.KJ110505）
重庆邮电大学博士启动基金(No.A2009-25) （No.A2009-25）
