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Compact Bounded-Collusion Identity-based Encryption via Group Testing
March 27, 2023, 9:54 p.m. |
IACR News www.iacr.org
ePrint Report: Compact Bounded-Collusion Identity-based Encryption via Group Testing
Shingo Sato, Junji Shikata
Bounded-collusion identity-based encryption (BC-IBE) is a variant of identity-based encryption, where an adversary obtains user secrete keys corresponding to at most $d$ identities. From results of existing work, it is proven that BC-IBE can be constructed from public key encryption (PKE) with several properties. In particular, we focus on post-quantum PKE schemes submitted to the NIST PQC competition, as the underlying PKE of BC-IBE schemes. This is …
advancement adversary competition cryptography encryption eprint report focus identities identity key keys nist post-quantum post-quantum cryptography pqc public public key quantum quantum cryptography report research results testing work
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