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Universally Composable Security: A New Paradigm for ...
We call this composition operation universal composition and say that de nitions of security in this framework (and the protocols that satisfy them) are uni-versally composable (UC). Consequently, we dub this framework the UC security framework.1 As we shall see, the fact that security in this framework is preserved under universal composition ...
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A survey of attacks on Ethereum smart contracts
eprint.iacr.orgA survey of attacks on Ethereum smart contracts Nicola Atzei, Massimo Bartoletti, and Tiziana Cimoli ... The success of Bitcoin, a decentralised cryptographic currency that reached a ... contracts secure. Indeed, several security vulnerabilities in Ethereum …
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eprint.iacr.orgcomputer, and a message produced by the container. improvements for enclave authors, it is a small incre-mental improvement, from a design and implementation standpoint. After understanding the principles behind SGX 1 and its security properties, the reader should be well equipped to face Intel’s reference documentation
Somewhat Practical Fully Homomorphic Encryption
eprint.iacr.orgf(x) 2Z[x] is a monic irreducible polynomial of degree d. In practice one would typically restrict to using a cyclotomic polynomial m(x), i.e. the minimal polynomial of the primitive m-th roots of unity. The most popular choice for expository purposes is to take f(x) = xd+ 1 with d= 2n. Elements of the ring Rwill be denoted in lowercase bold, e ...
Practical Secure Aggregation for Privacy-Preserving ...
eprint.iacr.orgwithdistinctfieldelementsinF.Giventheseparameters,the scheme consists of two algorithms. The sharing algorithm SS.share(s,t,U) →{(u,s u)} u∈U takes as input a secret s, a set Uof nfield elements representing user IDs, and
How To Simulate It – A Tutorial on the Simulation Proof ...
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Homomorphic Encryption for Arithmetic of Approximate …
eprint.iacr.orgKeywords. Homomorphic encryption, approximate arithmetic 1 Introduction Homomorphic encryption (HE) is a cryptographic scheme that enables homomorphic oper-ations on encrypted data without decryption. Many of HE schemes (e.g. [18, 6, 7, 4, 5, 25, 33, 2, 26, 13, 12, 21, 19]) have been suggested following Gentry’s blueprint [23]. HE can be
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