Revisiting Proxy Re-Encryption: Forward Secrecy, Improved Security, and Applications
| Autor: | Stephan Krenn, Thomas Lorünser, Christoph Striecks, Sebastian Ramacher, David Derler, Daniel Slamanig |
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| Rok vydání: | 2018 |
| Předmět: |
Delegation
business.industry Computer science media_common.quotation_subject Order (ring theory) 0102 computer and information sciences 02 engineering and technology Encryption Computer security computer.software_genre 01 natural sciences Proxy re-encryption Public-key cryptography 010201 computation theory & mathematics Forward secrecy 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing business Proxy (statistics) computer media_common |
| Zdroj: | Lecture Notes in Computer Science Lecture Notes in Computer Science-Public-Key Cryptography – PKC 2018 Public-Key Cryptography – PKC 2018 ISBN: 9783319765778 Public Key Cryptography (1) |
| ISSN: | 0302-9743 1611-3349 |
| DOI: | 10.1007/978-3-319-76578-5_8 |
| Popis: | We revisit the notion of proxy re-encryption (\(\mathsf {PRE}\)), an enhanced public-key encryption primitive envisioned by Blaze et al. (Eurocrypt’98) and formalized by Ateniese et al. (NDSS’05) for delegating decryption rights from a delegator to a delegatee using a semi-trusted proxy. \(\mathsf {PRE}\) notably allows to craft re-encryption keys in order to equip the proxy with the power of transforming ciphertexts under a delegator’s public key to ciphertexts under a delegatee’s public key, while not learning anything about the underlying plaintexts. |
| Databáze: | OpenAIRE |
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