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[PDF] Top 20 Universally Composable Security With Local Adversaries

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Universally  Composable  Security  With  Local  Adversaries

Universally Composable Security With Local Adversaries

... tapes: local input tapes, local subroutine output tapes, and communication ...the local input tapes of a particular ITI must include both the identity and the code of the intended target ITI, and the ... See full document

75

Universally  Composable  Secure  Computation  with (Malicious)  Physically  Uncloneable  Functions

Universally Composable Secure Computation with (Malicious) Physically Uncloneable Functions

... strong security guarantees (like UC) by allowing parties to use hardware boxes that have certain security ...of security required from such a hardware box is that of tamper-proofness ; ...UC ... See full document

53

Practical,  Anonymous,   and  Publicly  Linkable  Universally-Composable  Reputation  Systems

Practical, Anonymous, and Publicly Linkable Universally-Composable Reputation Systems

... All outputs from S 3 are distributed identically to the outputs of S 1 , assuming patching the random oracle does not fail. As argued previously, this only happens with negligible probability. Hence, when Z can ... See full document

43

Universally  Composable  Firewall  Architectures  using  Trusted  Hardware

Universally Composable Firewall Architectures using Trusted Hardware

... In this paper we explore the idea of actively malicious firewalls. We present a novel methodology to analyse architectures of multiple firewalls based on the Universal Composability (UC) framework. The UC framework ... See full document

16

Universally  Composable  Authentication   and  Key-exchange  with  Global  PKI

Universally Composable Authentication and Key-exchange with Global PKI

... Signing module. To capture re-usability of keys within different protocols, we describe a signing module that accepts sign requests from its owner PID. This module can be thought of as a local service process, ... See full document

30

Universally  Composable  Oblivious  Transfer  Protocol  based  on  the  RLWE  Assumption

Universally Composable Oblivious Transfer Protocol based on the RLWE Assumption

... The Ring Learning with Errors (RLWE) problem [LPR10] is a variant of the LWE problem [Reg05], which allows to construct more efficient and compact cryptosystems. It is conjectured that this problem is hard, even for ... See full document

21

A  Universally  Composable  Framework  for  the  Privacy  of  Email  Ecosystems

A Universally Composable Framework for the Privacy of Email Ecosystems

... Remark 2 (Unobservability as a golden standard for email privacy). In our UC formalization of e-mail ecosystems, we consider a dynamic scenario where the clients register, go online/offline and make custom fetch ... See full document

33

Universally  Composable  Secure  Computation  with  Corrupted  Tokens

Universally Composable Secure Computation with Corrupted Tokens

... In light of these impossibility results, various trust assumptions have been studied in order to obtain UC-secure constructions. Among these, one of the most studied is that of tamper-proof hardware tokens. Hofheinz et ... See full document

40

Universally  Composable  secure  TNC  protocol  based  on  IF-T  binding  to  TLS

Universally Composable secure TNC protocol based on IF-T binding to TLS

... The UC framework [2] is a kind of formal method for the modular design and analysis of multi-party protocols. UC defines an additional entity called the environment Z. It feeds arbitrary inputs to the parties and the ... See full document

15

Universally  Composable  Efficient  Priced  Oblivious  Transfer  from  a  Flexible  Membership  Encryption

Universally Composable Efficient Priced Oblivious Transfer from a Flexible Membership Encryption

... the universally composable (UC) security model and thus preserves secu- rity when it is executed with multiple protocol instances that run concurrently in an adversarily controlled ... See full document

20

Fortified  Universal  Composability:  Taking  Advantage  of  Simple  Secure  Hardware  Modules

Fortified Universal Composability: Taking Advantage of Simple Secure Hardware Modules

... Adaptive security is the established way to capture adver- saries breaking into computers during secure ...adaptive security does not prevent remote hacks where adversaries learn and modify a party’s ... See full document

53

Universally  composable  privacy  preserving  finite  automata  execution  with  low  online   and  offline  complexity

Universally composable privacy preserving finite automata execution with low online and offline complexity

... J v K 1 + J v K 2 + J v K 3 = v, where the share J v K i is kept by the i-th party P i . Messages depending on these shares are sent among the parties, hence it is important to rerandomize J v K before each use. The ... See full document

16

More  Efficient  Oblivious  Transfer  Extensions  with  Security  for  Malicious  Adversaries

More Efficient Oblivious Transfer Extensions with Security for Malicious Adversaries

... Since it is the previous best, we compare our protocol to that of [NNOB12]. Our approach reduces the number of base-OTs by removing the “sacrifice” step of [NNOB12] (where one out of every 2 base-OTs are opened) but ... See full document

36

On  Composable  Security  for  Digital  Signatures

On Composable Security for Digital Signatures

... to local com- putations in any real-world scheme, such as the initial creation of the key pair (including [25]) or the generation of a signature string (including ...idealized security guarantee, has often ... See full document

46

Universally  Composable  Non-Interactive  Key  Exchange

Universally Composable Non-Interactive Key Exchange

... ++ security model. We modify the m-CKS-heavy security notion from [18] by allowing an adversary A to make multiple (register honest user, ID) queries for the same ... See full document

33

(Efficient)  Universally  Composable  Oblivious  Transfer  Using  a  Minimal  Number  of  Stateless  Tokens

(Efficient) Universally Composable Oblivious Transfer Using a Minimal Number of Stateless Tokens

... The universal composability (UC) framework [7] provides a way of analyzing protocols while en- suring strong security guarantees. In particular, protocols proven secure in this framework remain secure when run ... See full document

37

ROYALE:  A  Framework  for  Universally  Composable  Card  Games  with  Financial  Rewards   and  Penalties  Enforcement

ROYALE: A Framework for Universally Composable Card Games with Financial Rewards and Penalties Enforcement

... Computational Complexity: The estimation is in terms of modular exponen- tiations executed for each card operation, since these operations tend to dominate the complexity. We present the amount of local ... See full document

35

Efficient   and  Universally  Composable  Protocols  for  Oblivious  Transfer  from  the  CDH  Assumption

Efficient and Universally Composable Protocols for Oblivious Transfer from the CDH Assumption

... various security models and setup ...the security of protocols when composed with themselves or other protocols in arbitrary concurrent or sequential ...UC security was established, various different ... See full document

23

A  Universally  Composable  Treatment  of  Network  Time

A Universally Composable Treatment of Network Time

... Another set of challenges has to do with the modeling of the “imperfections” that one encounters when using the currently available mechanisms for measuring time. We consider two main methods for measuring time, each ... See full document

26

On  Black-Box  Complexity  of  Universally  Composable  Security  in  the  CRS  model

On Black-Box Complexity of Universally Composable Security in the CRS model

... Intuitively, security requires proving both hiding and binding in the presence of static and adaptive ...IND-CPA security of the encryption scheme combined with the fact that the receiver only sees n shares ... See full document

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