云环境下基于秘密共享的海洋遥感影像认证方案

发布时间：2018-11-17 14:15

【摘要】：云存储模式的出现为海量海洋遥感影像的存储和管理带来了机遇,越来越多的用户选择将海洋遥感影像数据移植到云中,但云存储环境的开放性对海洋遥感影像数据的安全性提出了挑战。以保障云环境下海洋遥感敏感数据的安全性为前提,提出一种影像认证方案,将哈希函数与(k,n)门限秘密共享方法相结合,检测敏感区影像信息变化,并对加密前和恢复后的影像进行一致性验证,保护加密影像数据的机密性。同时,为避免n个子秘密中,因多于n-k个子秘密的篡改或丢失,造成敏感区影像不可恢复情况的发生,采用对敏感区影像进行分块的策略,对每个子影像块做进一步的秘密共享处理,以保证部分影像的无损恢复。实验对比分析表明,所提出的安全认证方案可以有效防止秘密恢复过程中的欺诈行为,同时可获得比传统方法更高的遥感影像云存储安全性。
[Abstract]:The emergence of cloud storage mode brings opportunities for the storage and management of massive marine remote sensing images. More and more users choose to transplant marine remote sensing image data to the cloud. However, the openness of cloud storage environment challenges the security of marine remote sensing image data. On the premise of ensuring the security of ocean remote sensing sensitive data in cloud environment, an image authentication scheme is proposed, which combines the hash function with the (kun) threshold secret sharing method to detect the change of image information in sensitive area. The consistency of image before and after encryption is verified to protect the confidentiality of encrypted image data. At the same time, in order to avoid the unrecoverable situation of sensitive region image caused by the tampering or loss of more than n-k sub-secret in n sub-secret, the strategy of dividing sensitive region image into blocks is adopted. Each sub-image block is further secretly shared to ensure the lossless restoration of some images. The experimental results show that the proposed security authentication scheme can effectively prevent fraud in the process of secret restoration and obtain higher security of remote sensing image cloud storage than traditional methods.
【作者单位】：上海海洋大学信息学院;国家海洋局东海信息中心;
【基金】：国家自然科学基金(61272098) 国家重点基础研究发展计划(2012CB316206) 上海海洋大学科技发展专项基金(A2-0203-00-100210)
【分类号】：TP309;TP751

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