Structure-Preserving Signatures on Equivalence Classes and Constant-Size Anonymous Credentials
Structure-preserving signatures (SPS) are a powerful building block for cryptographic protocols. We introduce SPS on equivalence classes (SPS-EQ), which allow joint randomization of messages and signatures. Messages are projective equivalence classes defined on group element vectors, so multiplying a...
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Practical Strongly Invisible and Strongly Accountable Sanitizable Signatures
Sanitizable signatures are a variant of digital signatures where a designated party (the sanitizer) can update admissible parts of a signed message. At PKC’17, Camenisch et al. introduced the notion of invisible sanitizable signatures, which allow one to hide...
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D9.6 Standards Activity Report 1
This activity report covers the second project year, Feb 2016 – Jan 2017. We report on our on-going activities for disseminating project results into standards and on our plans for the remaining time of the project, and beyond. More...
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D7.1 Progress Report for Security and Privacy by Design Guidelines
This report defines the translation of privacy principles as outlined in data protection legal frameworks into privacy targets which could then be ranked and categorized to determine the design priorities. Hence, it has been taking into consideration the relativity...
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D6.5 Firts Release of Software Implementation of Selected Components
PRISMACLOUD aims at bringing novel cryptographic concepts and methods to practical application to improve the security and privacy of cloud based services and make them usable for providers and users. The purpose of this report is to serve as an...
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D5.6 Progress Report on Privacy and Anonymisation Techniques
PRISMACLOUD aims at bringing novel cryptographic concepts and methods to practical application to improve the security and privacy of cloud based services and make them usable for providers and users. The purpose of this report is to outline the architecture...
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D5.2 Progress Report on Architectures for Distributed Storage in Dynamic Environments
In this report we present a first draft speci fication of the secure object storage tool (SECOSTOR). The tool comes with a clean architecture and easy to use modules and interfaces. All components are speci fied in detail for implementation and...
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D4.10 Initial Design and Evaluation
In this document, we present our progress with respect to FPE, OPE and anonymization in the last year. We have developed and implemented the underlying algorithms for FPE, OPE and anonymization. We have evaluated those algorithms using PRISMACLOUD use...
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D4.7 Progress Report on Privacy-Enhancing Cryptography
PRISMACLOUD aims at bringing novel cryptographic concepts and methods to practical application to improve the security and privacy of cloud based services and make them usable for providers and users. The purpose of this report is to document the progress...
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D4.2 Progress Report on Efficient Sharing Based Storage Protocols
Secure distributed storage solutions and their derivatives are of increasing importance in every-day life and a very vibrant eld of research. PRISMACLOUD tries to address con fidentiality, integrity, and high availability of distributed data in the cloud-computing context. In particular,...
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