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Impossibility of Order-Revealing Encryption in Idealized Models
Black-box separations Order-revealing encryption Random oracle
2017/10/16
An Order-Revealing Encryption (ORE) scheme gives a public procedure by which two ciphertext can be compared to reveal the order of their underlying plaintexts. The ideal security notion for ORE is tha...
More on Impossibility of Virtual Black-Box Obfuscation in Idealized Models
Virtual Black-Box Obfuscation Idealized Models
2015/12/29
The celebrated work of Barak et al. (Crypto’01) ruled out the possibility of virtual blackbox
(VBB) obfuscation for general circuits. The recent work of Canetti, Kalai, and Paneth
(TCC’15) extended ...