This paper presents a method that allows for securely saving a temporal sequence of data (log lines) in a file. Log lines are signed by an authority, and are thus unalterable without detection. Data is also encrypted in the file, and may be accessed with the granularity of a single log line with the possession of a decryption key. Also, it is possi- ble that for some lines data must be accessed by a group of cooperating users.
Secure Logging for Irrefutable Administration
BERGADANO, Francesco;CAVAGNINO, Davide;DAL CHECCO, PAOLO;MIRAGLIA, MICHELE;
2007-01-01
Abstract
This paper presents a method that allows for securely saving a temporal sequence of data (log lines) in a file. Log lines are signed by an authority, and are thus unalterable without detection. Data is also encrypted in the file, and may be accessed with the granularity of a single log line with the possession of a decryption key. Also, it is possi- ble that for some lines data must be accessed by a group of cooperating users.
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