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How is the Data Integrity of CAS ensured?
EVOTE protects itself from manipulation by system or database administrators by (i) encrypting all database content and (ii) by computing checking values (SHA-1 hash) over important data and blocks of data. This also includes all log entries. When data is accessed, the hash values are checked; manipulations cause a system alarm (see product overview IDC/LGG) and the data is blocked.
In contrast to other e-voting solutions, EVOTE maintains its status internally and recognizes itself when voting or voter registration is to be started or stopped. No manual interaction by system administration is required.