计算机科学 ›› 2022, Vol. 49 ›› Issue (5): 325-332.doi: 10.11896/jsjkx.210900075
阳真, 黄松, 郑长友
YANG Zhen, HUANG Song, ZHENG Chang-you
摘要： 众包测试是众包技术在软件测试领域的应用,它以分布、协作的方式开展测试,得到业界的广泛关注。然而,开放的众测环境和集中式的存储模式使众测知识产权存在泄露和被篡改的风险。为了实现众测知识产权的隐私保护以及可信存储,文中针对不同知识产权提出对应的保护方法。首先,针对众测任务与被测代码,使用AES算法和改进的CP-ABE算法对其进行细粒度的数据访问控制。该算法中的复杂加密操作被外包给可信第三方完成,降低了请求者的计算成本。同时该算法还支持属性的动态撤销,满足前向与后向安全性。此外,利用区块链技术和IPFS,该算法实现了大规模知识产权数据的分布式可信存储与一致性确权,确保存储的知识产权数据不被篡改,并可对链下知识产权进行确权,有助于解决知识产权纠纷。最后,进行性能测试与对比评估,验证了该方法的加解密效率相比以往方法有所提升,区块链性能表现较好;并进行安全性分析,证明了该方案满足安全需求。
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