FILE SERVER APPARATUS AND FILE SERVER SYSTEM
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Aug 16, 2013
filing date -
Feb 16, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
According to one embodiment, a reception unit receives post-office box's encrypted data, which is obtained by encrypting the data by using a post-office box's public key, from the sending apparatus. A re-encryption key storage unit stores a re-encryption key used for re-encrypting the post-office box's encrypted data into recipient's encrypted data, which is obtained by encrypting the data using a recipient's public key that is different from the post-office box's public key. A re-encryption unit re-encrypts the received post-office box's encrypted data to the recipient's encrypted data using the re-encryption key stored in the re-encryption key storage unit. A transmission unit transmits the re-encrypted recipient's encrypted data to the receiving apparatus.
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