Abstract:
Digital economy has become an integral part of citizens of any nation. However, it is plagued with inadequate trust and lacks transparency of user identity with access control. Thus, this research proposes a multiparty access control framework for policy conflict resolution. The framework involves four Nigerian Agencies which are Nigeria Immigration Service (NIS), National Identity Management Commission (NIMC), Financial Institution, and Federal Road Safety Corps (FRSC) with citizen’s bio data to eliminate duplication among other problems. The proposed blockchain framework consists of five modules at the blockchain application interface (api): block creation, block broadcasting, block verification, block approval, and block validation. in conjuction with a role based access control approach was adopted to control information storage, retrieval and operation. Currently, these government agencies operate with data entry officer who are in charge of citizen information entry, Implementation tools deployed are Mongo DB, MySQL, JSON, C-sharp, Node.js and JavaScript. The blockchain framework was implemented and the evaluation results shows the total SSOID considered for each agency simulation are ( NIS, NIMC, FRSC and Financial Institution) respectively, the total time taken (in seconds) were considered as well for performance metric Also, the result generated through the bar chart was 100% successful for citizen’s SSOID that serve as a security code, The percentage of citizen’s SSOID generated per seconds for each organisation considered are 0.35 for NIS; 0.48 for NIMC; 0.44 for FRSC; and 1.0 for Bank, and the time taken to retrieve each record based on the number and the time take for modification, Also, percentage of modified records per seconds are 0.73 for NIS; 0.6 for NIMC; 0.59 for FRSC; and 0.38 for Bank respectively. The output can be used for trust management and conflict resolution in online environment.
