Blockchain-based P2P multimedia content distribution using collusion-resistant fingerprinting

Survey on Decentralized Fingerprinting Solutions: Copyright Protection through Piracy Tracing

“…• The schemes in [22,[24][25][26][27][28][29][30][31] provide revocable privacy. These systems hide the real identity of the buyers that is only revealed by a trusted third party in case of illegal redistribution.…”

“…Recently, Qureshi and Megías [27] proposed a blockchain-based P2P content distribution system based on the system proposed in [24,25]. The proposed system combines different cryptographic protocols, e.g., collusion-resistant fingerprinting, homomorphic and symmetric encryption schemes, perceptual hash functions, etc., and an Ethereum-based smart contract in a P2P environment (InterPlanetary File System) to provide copyright protection, collusion resistance, atomic payment, piracy tracing, transparency, proof-of-delivery, revocable privacy (to a buyer), and dispute resolution.…”

“…The schemes in [22,[24][25][26][27][28][29][30][31] also provide mutual anonymity between the users of the distribution system, using pseudonyms, and anonymous authentication and communication techniques. Again, mutual anonymity is not discussed in [34][35][36][37].…”

“…Furthermore, in the P2P distribution systems proposed by the authors of [22,[24][25][26][27][28][29][30][31], the privacy of the users is preserved against malicious or coalition attacks that attempt to deanonymize the users. Although the systems in [34][35][36][37] provide copyright protection through asymmetric fingerprinting protocols, the privacy of the users is not preserved against any type of malicious attack.…”

“…The schemes in [22,[24][25][26][27][28][29][30][31][34][35][36][37] guarantee data protection through the use of different cryptographic solutions (either symmetric, public key or hybrid). Similarly, the data are protected against eavesdropping of broadcast channel because of the enciphering before the broadcasting in [43,44,[46][47][48].…”