Toward fair international key escrow: An attempt by distributed trusted third agencies with threshold cryptography

Shingo Miyazaki, Ikuko Kuroda, Kouichi Sakurai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We consider key escrow system for international communication between multiple domains with different policies. In intercepting international communications between two domains serious problems on unfairness may arise when one government has not authorized the message interception in legal. We solve this problem by incorporating a mechanism that allows message interception by law enforcement parties subject to the consent of both governments involved in the communication. That mechanism involves the establishment of an independent International Trusted Third Party (ITTP) that has the ultimate authority to check of the security policies of each country and permit or deny the interception of international messages. We present a scheme with multiple Diffie-Hellman type key distribution protocoland the ITTP copes with only the secret-key corresponding to its own public-key. We can also make the ITTP “multiple”, and we apply recent developed techniques on distributed (threshold) cryptography to our multiple ITTPs. Thus, the establishment and control of an international trusted third party can done with incorporating by each governments.

Original languageEnglish
Title of host publicationPublic Key Cryptography - 2nd International Workshop on Practice and Theory in Public Key Cryptography, PKC 1999, Proceedings
EditorsHideki Imai, Yuliang Zheng
PublisherSpringer Verlag
Pages171-187
Number of pages17
ISBN (Print)3540656448, 9783540656449
DOIs
Publication statusPublished - 1999
Event2nd International Workshop on Practice and Theory in Public Key Cryptography, PKC 1999 - Kamakura, Japan
Duration: Mar 1 1999Mar 3 1999

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume1560
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other2nd International Workshop on Practice and Theory in Public Key Cryptography, PKC 1999
CountryJapan
CityKamakura
Period3/1/993/3/99

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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