The IITM Model: A Simple and Expressive Model for Universal Composability
The IITM Model: A Simple and Expressive Model for Universal Composability
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IITM 模型:一个简单而富有表现力的通用可组合性模型
DOI:
10.1007/s00145-020-09352-1
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发表时间:
2020
影响因子:
3
通讯作者:
Daniel
中科院分区:
文献类型:
--
作者:
Küsters;Tuengerthal;Rausch;Daniel
The universal composability paradigm allows for the modular design and analysis of cryptographic protocols. It has been widely and successfully used in cryptography. However, devising a coherent yet simple and expressive model for universal composability is, as the history of such models shows, highly non-trivial. For example, several partly severe problems have been pointed out in the literature for the UC model. In this work, we propose a coherent model for universal composability, called the IITM model (“Inexhaustible Interactive Turing Machine”). A main feature of the model is that it is stated without a priori fixing irrelevant details, such as a specific way of addressing of machines by session and party identifiers, a specific modeling of corruption, or a specific protocol hierarchy. In addition, we employ a very general notion of runtime. All reasonable protocols and ideal functionalities should be expressible based on this notion in a direct and natural way, and without tweaks, such as (artificial) padding of messages or (artificially) adding extra messages. Not least because of these features, the model is simple and expressive. Also the general results that we prove, such as composition theorems, hold independently of how such details are fixed for concrete applications. Being inspired by other models for universal composability, in particular the UC model and because of the flexibility and expressivity of the IITM model, conceptually, results formulated in these models directly carry over to the IITM model.
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影响因子:
3
作者:
D. Hofheinz;Dominique Unruh;J. Müller
通讯作者:
J. Müller
DOI:
--
发表时间:
2004
期刊:
IACR Cryptology ePrint Archive
影响因子:
--
作者:
B. Barak;Yehuda Lindell;T. Rabin
通讯作者:
T. Rabin
DOI:
--
发表时间:
2009
期刊:
IEEE Computer Security Foundations Symposium
影响因子:
--
作者:
Ralf Küsters;Max Tuengerthal
通讯作者:
Max Tuengerthal
影响因子:
3
作者:
Ralf Küsters;Anupam Datta;John C. Mitchell;A. Ramanathan
通讯作者:
A. Ramanathan
DOI:
10.1145/1165555.1165570
发表时间:
2006-09
期刊:
--
影响因子:
--
作者:
R. Canetti
通讯作者:
R. Canetti