Behnam Bahrak

Improved Secure and Privacy Preserving Keyword Searching Cryptography

2016

Using storage systems outside a company may endanger data security. This leads users to mostly encrypt their information for risk mitigation. Although encryption improves confidentiality, it causes inefficiency such as the encrypted data is not …

A Framework for Collaborative Attack based on Criminal Smart Contract.

2020 · arXiv (Cornell University)

In agreements among anonymous users, smart contracts eliminate the need for a trusted intermediary and enforce its terms when the conditions set by the parties are met. Although smart contracts are mostly used for positive …

RPoA: Redefined Proof of Activity

2022 · arXiv (Cornell University)

The consensus protocol is the core of a blockchain system which guarantees its secure and stable operation. Proof of Activity (PoA) is a consensus protocol that tries to address some of the issues pertinent to …