Using Sphinx to Improve Onion Routing Circuit Construction
نویسندگان
چکیده
This paper presents compact message formats for onion routing circuit construction using the Sphinx methodology developed for mixes. We significantly compress the circuit construction messages for three onion routing protocols that have emerged as enhancements to the Tor anonymizing network; namely, Tor with predistributed Diffie-Hellman values, pairing-based onion routing, and certificateless onion routing. Our new circuit constructions are also secure in the universal composability framework, a property that was missing from the original constructions. Further, we compare the performance of our schemes with their older counterparts as well as with each other.
منابع مشابه
Using Sphinx to Improve Onion Routing Circuit Construction (short paper)⋆
This paper presents compact message formats for onion routing circuit construction using the Sphinx methodology developed for mixes. We significantly compress the circuit construction messages for three onion routing protocols that have emerged as enhancements to the Tor anonymizing network; namely, Tor with predistributed DiffieHellman values, pairing-based onion routing, and certificateless o...
متن کاملEfficient and Secure Identity-Based Onion Routing
Onion routing protocols achieve low-latency anonymous communication on public networks. Up to date, many onion routing protocols have been proposed, such as Tor network, in order to implement the anonymous network connection in the public networks. Although the previous schemes’ multi-pass cryptographic circuit construction appears satisfactory, their circuit construction protocols have some dr...
متن کاملPairing-Based Onion Routing
This paper presents a novel use of pairing-based cryptography to improve circuit construction in onion routing anonymity networks. Instead of iteratively and interactively constructing circuits with a telescoping method, our approach builds a circuit with a single pass. The cornerstone of the improved protocol is a new pairing-based privacypreserving non-interactive key exchange. Compared to pr...
متن کاملAIB-OR: Improving Onion Routing Circuit Construction Using Anonymous Identity-Based Cryptosystems
The rapid growth of Internet applications has made communication anonymity an increasingly important or even indispensable security requirement. Onion routing has been employed as an infrastructure for anonymous communication over a public network, which provides anonymous connections that are strongly resistant to both eavesdropping and traffic analysis. However, existing onion routing protoco...
متن کاملKey Management for Onion Routing in a True Peer to Peer Setting
Onion routing is a technique for anonymous and privacy preserving communication at the base of popular Internet anonymity tools such as Tor. In onion routing, traffic is relayed by a number of intermediary nodes (called relays) before it reaches the intended destination. To guarantee privacy and prevent tampering, each packet is encrypted multiple times in a layered manner, using the public key...
متن کامل