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Articles by Marloes Venema
Using Predicate Extension for Predicate Encryption to Generically Obtain Chosen-Ciphertext Security and Signatures
Paper 2023/1947 , University of Wuppertal , Radboud University Nijmegen Predicate encryption (PE) is a type of public-key encryption that captures many useful primitives such as attribute-based encryption (ABE). Although much progress has been made to generically achieve security against chosen-plaintext attacks (CPA) efficiently, in practice, we also require security against chosen-ciphertext attacks (CCA).
ACABELLA: Automated (Crypt)analysis of Attribute-Based Encryption Leveraging Linear Algebra
Paper 2023/1274 , Kudelski Security Research Team , University of Wuppertal, Radboud University Nijmegen , Open University of the Netherlands, Radboud University Nijmegen Attribute-based encryption (ABE) is a popular type of public-key encryption that enforces access control cryptographically, and has spurred the proposal of many use cases. To satisfy the requirements of the setting, tailor-made schemes are often introduced.
A Practical Compiler for Attribute-Based Encryption: New Decentralized Constructions and More
Paper 2023/143 A Practical Compiler for Attribute-Based Encryption: New Decentralized Constructions and More , University of Wuppertal, Radboud University Nijmegen Abstract The pair encodings framework is an important result in the simplified design of complex attribute-based encryption schemes.
Portunus: Re-imagining access control in distributed systems
Paper 2023/094 Portunus: Re-imagining access control in distributed systems , Akamai (United States) , University of Wuppertal, Radboud University Nijmegen , Cloudflare Abstract TLS termination, which is essential to network and security infrastructure providers, is an extremely latency sensitive operation that benefits from access to sensitive key material close to the edge.
GLUE: Generalizing Unbounded Attribute-Based Encryption for Flexible Efficiency Trade-Offs
Paper 2022/613 GLUE: Generalizing Unbounded Attribute-Based Encryption for Flexible Efficiency Trade-Offs , Radboud University Nijmegen , Open University of the Netherlands, Radboud University Nijmegen Abstract Ciphertext-policy attribute-based encryption is a versatile primitive that has been considered extensively to securely manage data in practice. Especially completely unbounded schemes are attractive, because they do not restrict the sets of attributes and policies.
Efficient and Generic Transformations for Chosen-Ciphertext Secure Predicate Encryption
Paper 2022/1436 Efficient and Generic Transformations for Chosen-Ciphertext Secure Predicate Encryption , Radboud University Nijmegen , Radboud University Nijmegen Abstract Predicate encryption (PE) is a type of public-key encryption that captures many useful primitives such as attribute-based encryption (ABE).
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