DocumentCode
2574254
Title
Relationship of three cryptographic channels in the UC framework
Author
Okamoto, Tatsuaki
Author_Institution
NTT Labs., Nippon Telegraph & Telephone Corp., Kanagawa
fYear
2005
fDate
19-19 Oct. 2005
Firstpage
73
Lastpage
73
Abstract
This paper shows that three cryptographic channels, secure channels (SC), anonymous channels (AC) and direction-indeterminable channels (DIC), are reduced to each other in the UC (universally composable) framework. We first define ideal functionalities for these channels, FSC, FAC and FDIC. We then prove that a SC protocol UC-realizes FSC in the FDIC -hybrid model, that a DIC protocol UC-realizes FDIC in the FAC-hybrid model, and that a AC protocol UC-realizes F AC-hybrid model in the FSC-hybrid model
Keywords
cryptography; protocols; anonymous channel protocol; cryptographic channel; direction-indeterminable channel protocol; hybrid model; secure channel protocol; universally composable framework; Algorithms; Cryptographic protocols; Cryptography; Laboratories; Telegraphy; Telephony;
fLanguage
English
Publisher
ieee
Conference_Titel
Theory and Practice in Information-Theoretic Security, 2005. IEEE Information Theory Workshop on
Conference_Location
Awaji Island
Print_ISBN
0-7803-9491-7
Type
conf
DOI
10.1109/ITWTPI.2005.1543960
Filename
1543960
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