Common use of Fault Tolerance Clause in Contracts

Fault Tolerance. In the course of group key agreement processes, malicious participants should be re- moved from the group without affecting the operations of remaining honest participants. In B-GKAP, detection and elimination of faulty participants occurs the during execution of veri f yPublicKeys(·), veri f ySecretKeys(·) and f aultCorrection(·) functions. If a malicious participant is detected in veri f yPublicKeys(·) or veri f ySecretKeys(·) functions, related key of the participant is not written to the ledger. Therefore, f aultCorrection(·) detects the miss- ing key, and removes related participant from the group.