Method for certifying public keys in a digital signature scheme
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United States of America Patent
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Feb 10, 1998
Grant Date -
N/A
app pub date -
Jan 31, 1997
filing date -
Apr 23, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A method for certifying public keys of a digital signature scheme in a communications system is provided. The secure communications system is one in which there are at least two levels of authorities. A user presents a piece of data to an intermediate level authority who, upon verifying the data, causes an issuing authority to issue a certificate that the piece of data posses a given property. Although the certificate is compacted by not having it contain a pubic key of the intermediate authority, nonetheless, information is stored in order to keep the intermediate authority accountable.
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