A system and method to proactively detect software tampering

G - Physics – 06 – F

Patent

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G06F 11/30 (2006.01) G06F 12/14 (2006.01) H04L 9/32 (2006.01)

Patent

CA 2505477

Software intrusion is proactively detected using a dynamically evolving audit log (404) wherein log entries are generated in the audit log (404) and key values (406) are evolved based upon a one-way function (408) depending on both the previous log (404) entry and the previous key (406). The audit log (404) with the generated log entries and the final key value is transmitted to a clearinghouse (410) that detects software intrusion by analyzing these values. In an effort to reduce the size of the log (404) to be transmitted, the log entries are assigned identical values, thereby only needing to transmit one log entry and the last key value to the clearinghouse (410).

L'invention concerne la détection proactive de la violation d'un logiciel à l'aide d'une liste de contrôle dynamique (404) dans laquelle sont générées des entrées de journal et des valeurs (406) de clé déterminées à partir d'une fonction univoque (408) dépendant de l'entrée précédente (404) et de la clé précédente (406). La liste de contrôle (404) avec les entrées générées et la valeur de clé finale est transmise à un bureau central (410) qui détecte une violation de logiciel par analyse de ces valeurs. Afin de réduire la dimension de l'entrée (404) destinée à être transmise, on attribue aux entrées des valeurs identiques afin de ne transmettre qu'une entrée et la dernière valeur de clé au bureau central (410).

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