Transient-key cryptography: Difference between revisions

Revision as of 10:26, 19 November 2022

Revision as of 11:19, 21 November 2022

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In transient-key systems, however, the keypair is assigned to a brief interval of time, not to a particular person or entity. Data signed by a specific private key becomes associated with a specific time and date. A keypair is active only for a few minutes, after which the private key is permanently destroyed. Therefore, unlike public-key systems, transient-key systems do not depend upon the long-term security of the private keys.

==Establishing data integrity with transient-key timestamps==

In a transient-key system, the source of time must be a consistent standard understood by all senders and receivers. Since a local [[system clock]] may be changed by a user, it is never used as a source of time. Instead, data is digitally signed with a time value derived from [[Universal Coordinated Time|Universal Coordinated Time (UTC)]] accurate to within a millisecond, in accordance with the [[ANSI ASC X9.95 Standard|ANSI ASC X9.95 standard for Trusted Timestamping]]. Whenever a time interval in a transient-key system expires, a new public/private keypair is generated, and the private key from the previous interval is used to digitally certify the new public key. The old private key is then destroyed. This "key-chaining" system is the immediate ancestor of the [[Blockchain]] technology in vogue today.

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*[http://www.proofspace.com ProofSpace, Inc] has published a more detailed [http://fios.com/proofmarksystemtech.pdf technical overview document] of transient key cryptography.

== References ==

{{reflist}}

==External links==

*[https://www.coininsider.com/nl Coininsider Cryptocurrency News]

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