发明名称 EFFICIENT AND SECURE DATA CURRENTNESS SYSTEMS
摘要 <p>Indicating data currentness includes, on any date of a sequence of dates, issuing a proof indicating the currentness status of the data during a particular time interval. The proof may be a digital signature. The time interval may be in the form of a current date and an amount of time. The proof may include a digital signature of the time interval. The proof may include a digital signature of the time interval and the data. The proof may include a digital signature of the time interval and a compact form of the data, such as a hash. Indicating data currentness may also include distributing the proofs to a plurality of unsecure units that respond to requests by users for the proofs. Indicating data currentness may also include gathering a plurality of separate pieces of data and providing a single proof for the separate pieces of data. The data may be electronic documents.</p>
申请公布号 EP1627488(A4) 申请公布日期 2008.06.04
申请号 EP20040752021 申请日期 2004.05.13
申请人 CORESTREET, LTD. 发明人 MICALI, SILVIO;LIBIN, PHIL;VOLBRIGHT, BRANDON
分类号 H04L9/00;H04K1/00;H04L9/32 主分类号 H04L9/00
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