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结合数字高程模型数据组织的特点,提出了数字高程模型加解密运算的一般原则,探讨了经典密码学原理在其中的应用方法。通过对特殊情况的处理,增强了经典密码学应用于数字高程模型加解密的安全性。通过实验验证了方法的可行性,为其他密码学思想应用于数字高程模型加解密做了积极探索。 更多还原

【Abstract】 According to the structure of Digital Elevation Model(DEM),this paper provided some common principles for encrypting and decrypting DEM,then discussed classical cryptography used in encrypt and decrypt DEM.Through dealt with special circs,strengthened its safety.The last,this paper validated the feasibility through experiments,and this also did some active trying for other cryptography ideas used in this domain. 更多还原