Design and Development of a Web-Based Archival Information System Using the Rijndael Algorithm
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Local election supervisory offices still keep most of their records on paper, which slows retrieval and exposes documents to loss and unauthorized reading. This study designed and implemented a web-based archival information system for the election supervisory office of North Palu sub-district (Panwascam), using CodeIgniter 3 and MySQL, with the Rijndael cipher (AES) for data protection. The system was evaluated with a black-box functional test and a DeLone and McLean questionnaire completed by six staff members, and the encryption example of the source study was checked against an independent AES-128 implementation. All 13 tested functions gave the expected result. Recomputed from item-level data, mean system quality was 3.94 and mean information quality 4.10 on a five-point scale, with overlapping 95% confidence intervals, so the source study’s claim that information quality is below average is not supported. The independent implementation reproduced the published ciphertext under PKCS#7 padding, but the printed hand calculation did not match the standard in rounds 1–3 and repeated one state in rounds 4–9. Design issues include a 32-bit integer field for a 13-digit document number, an unspecified cipher mode, and reversible storage if the cipher protects passwords. With six users, single test runs, and no tests of encryption, search, or file handling, the findings are indicative only, and evidence of improved retrieval or security is still needed.
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