[PDF] Top 20 Adaptively secure two-party computation from indistinguishability obfuscation

... In our proofs of lemmas instead of having an interactive game with the adversary we just run an experiment and show to the adversary the resulting distribution, asking it to guess which hybrid it sees. Indeed, by itself ... See full document

... discusses two types of secrecy, privacy and ...a party learning (F,X,d) does not learn anything besides some allowed leakage and the output z (for example by computing ...the party who has garbled ... See full document

... NCE, adaptively secure OT and adaptively secure two-party ...expected two rounds NCE based on a weaker ...first two-round NCE construction under the Φ- hiding ... See full document

... difference from the real-world execution is the ciphertext ...start from one world, in order to move to the other, we would need to employ the indistinguishability of equivocal keys ...corrupted ... See full document

... constructed from two recently emerged primitives: an adaptively secure Attribute-Based Encryption (ABE) [SW05] for circuits and Universal Samplers as introduced by Hofheinz et ...constructible ... See full document

... of two-party (resp., m-party) protocols in order to obtain a more complex two-party ...follows from [Can00] who shows that protocols that are adaptively secure with ... See full document

... between two parties. Further note that for an OT call between two parties security is required only if at least one of the two parties is ...can adaptively securely realize OT functionality in ... See full document

... tions from Sections ...to adaptively choose the inputs of all parties after seeing the common reference ...use secure channels in rounds 3 and 4, consists only of the messages sent in the first ... See full document

... Program obfuscation has been a longstanding goal in cryptography, though for many years general solutions seemed ...eral indistinguishability obfuscation (iO) candidate by Garg, Gentry, Halevi, ... See full document

... multi-party computation protocols is either relying on additional manual input [13, 12], or only captures properties of correctness ...garbled computation and oblivious ...particular ... See full document

... each party can encrypt its message under its own FHE key, and then the parties can use the key homomorphism to obtain encryptions of the inputs under a shared FHE ... See full document

... of computation consists of the parties running an instance of a protocol Π, an adversary A that controls the communication among the parties, and an environment Z that controls the inputs to the parties and sees ... See full document

... selectively secure – that is, they have been proved secure only in a weaker model in which the adversary is required to specify the message m for its challenge ciphertext before it sees the public ... See full document

... Each party holds the number of transaction and the parties wish to work together to recognize globally valid Association ...multi party transaction data that discovers frequent item sets with minimum ... See full document

... which indistinguishability obfuscation can be used as a building block has been insufficiently ...on indistinguishability obfuscation is based on that of Asharov and Segev [AS15] (which, in ... See full document

... in two steps. Two parties first run a protocol whose outputs are triples that are leaky without any correctness guarantee; then a checking procedure is run to ensure ...these two steps can be ... See full document

... The random oracle model was first introduced formally by Bellare and Rogaway [6]; this was also the first work to put forward the notion of an “idealized model” as a way to simplify both cryptographic constructions and ... See full document

... From a feasibility point of view, PSI is just a special case of 2PC and therefore any generic 2PC protocol (such as [Yao82, GMW87]) could be used to securely evaluate PSI instances as well. However, since PSI is a ... See full document

... exist from only one-way functions ...programs from only one-way functions; however, the size of the garbled RAM program in these schemes is proportional to the (worst-case) running time of the underlying ... See full document

... semantically secure multilinear (and graded) encoding schemes (of ...semantically secure encoding scheme guarantees security of a class of algebraic decisional ...proven secure in the generic ... See full document