地理信息安全技术研究进展与展望

随着地理信息应用的深入,精度高、涉密广的地理信息安全保护要求与现阶段经济发展对地理信息共享需求的矛盾日益尖锐,如何在安全的前提下促进地理信息最大程度的共享已成为目前迫切需要解决的重要问题,亟须可靠的技术保护地理信息安全。本文综述了近几年来地理信息安全技术的进展,包括将数据转变为密文的加密技术、具有版权保护和溯源追踪作用的数字水印技术、能够控制时间和权限的安全控制技术、可以降低数据精度和删除涉密属性的保密处理技术以及防止篡改和可认证的区块链技术。然后,论述了地理信息安全技术在地理信息安全防护中的应用。最后,展望了地理信息安全技术的未来发展方向和进一步需要解决的关键问题。

Geo-information security technology: progress and prospects

With the in-depth utilization of geographic information, the conflicts in geographic information become severe between the requirements of high-precision wide-security-range protection and the requirements of sharing from current economy development. Therefore, sharing geographic information to the maximum under safe conditions has become an important issue, which is to be solved urgently. Consequently, the reliable protection techniques are in urgent demand for protecting the security of geographic information. In this paper, the recent progress of security techniques for geographic information has been reviewed, including the encryption techniques to convert the data into cipher text, the digital watermarking techniques for copyright protection and traceability, the security control techniques for term of validity and permission, the confidential treatment techniques for reducing the data precision and deleting the security property, and the certifiable block chain techniques for tamper proof. Then, the utilization of security techniques in protection for geographic information is discussed. Finally, the future developing direction and the key problems to be further solved are prospected for security techniques of geographic information.