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Black-box non-black-box zero knowledge

Vipul Goyal, Rafail Ostrovsky, Alessandra Scafuro, Ivan Visconti
2014 Proceedings of the 46th Annual ACM Symposium on Theory of Computing - STOC '14  
Despite such positive results, even though nowadays we know black-box constructions for secure two-party and multi-party computation even in constant rounds, there still are in Cryptography several constructions  ...  that critically require non-black-box use of primitives in order to securely realize some fundamental tasks.  ...  Advances in Cryptology -CRYPTO 2012 -32nd Annual Cryptology Conference, Santa Barbara, CA, USA, August 19-23, 2012. Proceedings, volume 7417 of Lecture Notes in Computer Science. Springer, 2012.  ... 
doi:10.1145/2591796.2591879 dblp:conf/stoc/GoyalOSV14 fatcat:2cn4htdd4req3lfcc5jumdhphy