Redactable Signatures for Tree-Structured Data: Definitions and Constructions
Redactable Signatures for Tree-Structured Data: Definitions and Constructions
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DOI：
10.1007/978-3-642-13708-2_6
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发表时间：
2010-06
期刊：
影响因子：
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通讯作者：
C. Brzuska;Heike Schröder;Özgür Dagdelen;M. Fischlin;M. Franz;S. Katzenbeisser;M. Manulis;Cristina Onete
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文献类型：
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作者：
C. Brzuska;Heike Schröder;Özgür Dagdelen;M. Fischlin;M. Franz;S. Katzenbeisser;M. Manulis;Cristina Onete
Kundu 和 Bertino (VLDB 2008) 最近引入了树结构签名的想法，它支持子树的公共编辑（由第三方分发者），同时保持其余部分的完整性。已签名的 XML 文档给出了一个示例，其中的部分在由不持有签名密钥的分发者发布之前应进行清理。 Kundu 和 Bertino 也提供了一种构造，但没有提供正式的安全定义和证明。在这里，我们重新审视他们的工作，并为树结构数据的可编辑签名提供严格的安全模型，关联概念，并给出可以在标准加密假设下证明安全的结构。
Kundu and Bertino (VLDB 2008) recently introduced the idea of structural signatures for trees which support public redaction of subtrees (by third-party distributors) while pertaining the integrity of the remaining parts. An example is given by signed XML documents of which parts should be sanitized before being published by a distributor not holding the signing key. Kundu and Bertino also provide a construction, but fall short of providing formal security definitions and proofs. Here we revisit their work and give rigorous security models for the redactable signatures for tree-structured data, relate the notions, and give a construction that can be proven secure under standard cryptographic assumptions.