Secret identifier for renewed subscription
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United States of America Patent
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N/A
Issued Date -
Feb 22, 2007
app pub date -
Apr 15, 2004
filing date -
Apr 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to cryptographic identification in a practical, low cost environment. A secret number (a kind of hidden identity) is stored in a device that, in combination with its public identity, can be used for identification by a Certifying Authority (CA) and subsequent subscription. To enable efficient renewed subscription, the CA will store a mapping of the hidden identity.
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