A Comparative Evaluation of Private Information Retrieval Techniques in Location-Based Services. - Sergiu Costea; Dumitru Marian Barbu; Gabriel Ghinita; Razvan Rughinis (INCoS, 2012)

Reduced Relative Errors for Short Sequence Counting with Differential Privacy. - Sergiu Costea; Gabriel Ghinita; Razvan Rughinis; Nicolae Tapus (CSCS, 2015)

Input Validation for the Laplace Differential Privacy Mechanism. - Sergiu Costea; Nicolae Tapus (CSCS, 2015)

Implementation and optimization of a somewhat homomorphic encryption scheme. - Andrei Ciocan; Sergiu Costea; Nicolae Tapus (RoEduNet, 2015)

Solving the Top-K problem for sequence counting using differential privacy. - Sergiu Costea; Nicolae Tapus (RoEduNet, 2015)

Secure Software Licensing: Models, Constructions, and Proofs. - Sergiu Costea; Bogdan Warinschi (CSF, 2016)

A Survey on Secure Communication Protocols for IoT Systems. - Dan Dragomir; Laura Gheorghe; Sergiu Costea; Alexandru Radovici (SIoT, 2016)

Security from Disjoint Paths: Is It Possible? - Sergiu Costea; Marios O. Choudary; Costin Raiciu (Security Protocols Workshop, 2017)

Secure Opportunistic Multipath Key Exchange. - Sergiu Costea; Marios O. Choudary; Doru Gucea; Björn Tackmann; Costin Raiciu (IACR Cryptol. ePrint Arch., 2018)