Method of exchanging digital data
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United States of America Patent
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-
Jan 30, 2007
Grant Date -
N/A
app pub date -
Mar 18, 1998
filing date -
Mar 18, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Party A encrypts unique first digital data and generates an authentication certificate authenticating that the encrypted first data is an encryption of the first data. Party B verifies the encrypted first data using the authentication certificate. When the encrypted first data is verified by B, A verifies second unique digital data received from B. When the second data is verified by A, B verifies unencrypted first data received from A. When the unencrypted first data is not verified by B, B sends the encrypted first data and the second data to party C. C decrypts the encrypted first data to obtain the decrypted first data, and verifies the decrypted first and the second data. When the decrypted first and the second data are verified, C sends the decrypted first data to B and the second data to A.
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