A Timed-Release Key Management Scheme for Backward Recovery

Yoshida, Masatake; Mitsunari, Shigeo; Fujiwara, Toru

doi:10.1007/11734727_3

Cited by 5 publications

(1 citation statement)

References 11 publications

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“…The timed‐release cryptography has considered the act of encrypting a document so that it cannot be read before a release time. However, the existing timed‐release cryptography has only achieved timed‐release encryption such as , key management scheme such as , and OT with timed‐release receiver's privacy , and has not achieved the functionality needed in the special circumstances in the previous text. Though the OT protocol includes timed‐release property, it considers timed‐release receiver's privacy, namely, the receiver's privacy can be obtained by the sender just after a designated time.…”

Section: Introductionmentioning

confidence: 99%

Timed-release oblivious transfer

Zhang

Tang

2013

Security Comm. Networks

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We study a variant of oblivious transfer, we called timed‐release oblivious transfer that permits a sender to restrict when each receiver may open his chosen messages, without learning anything about the receiver's message choices. To achieve this functionality, we import a time server into the protocol that broadcasts a time token periodically and needs neither to interact with the sender nor the receiver. In our generic construction for the protocol, a primitive called verifiably ID‐based encrypted blind signature is introduced as a basic building block. We also present a concrete scheme for the protocol's generic construction. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%