Offline-First Design for Fault Tolerant Applications.
- Authors: Linklater, Gregory , Marais, Craig , Herbert, Alan , Irwin, Barry V W
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/427683 , vital:72455 , https://www.researchgate.net/profile/Barry-Irwin/publication/327624337_Offline-First_Design_for_Fault_Tolerant_Applications/links/5b9a50a1458515310584ebbe/Offline-First-Design-for-Fault-Tolerant-Applications.pdf
- Description: Faults are inevitable and frustrating, as we increasingly depend on network access and the chain of services that provides it, we suffer a greater loss in productivity when any of those services fail and service delivery is suspended. This research explores connectivity and infrastructure fault tolerance through offline-first application design using techniques such as CQRS and event sourcing. To apply these techniques, this research details the design, and implementation of LOYALTY TRACKER; an offline-first, PoS system for the Android platform that was built to operate in the context of a small pub where faults are commonplace. The application demonstrates data consistency and integrity and a complete feature set that continues to operate while offline but is limited by scalability. The application successfully achieves it’s goals in the limited capacity for which it was designed.
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Toward distributed key management for offline authentication
- Authors: Linklater, Gregory , Smith, Christian , Herbert, Alan , Irwin, Barry V W
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/430283 , vital:72680 , https://doi.org/10.1145/3278681.3278683
- Description: Self-sovereign identity promises prospective users greater control, security, privacy, portability and overall greater convenience; however the immaturity of current distributed key management solutions results in general disregard of security advisories in favour of convenience and accessibility. This research proposes the use of intermediate certificates as a distributed key management solution. Intermediate certificates will be shown to allow multiple keys to authenticate to a single self-sovereign identity. Keys may be freely added to an identity without requiring a distributed ledger, any other third-party service or sharing private keys between devices. This research will also show that key rotation is a superior alternative to existing key recovery and escrow systems in helping users recover when their keys are lost or compromised. These features will allow remote credentials to be used to issuer, present and appraise remote attestations, without relying on a constant Internet connection.
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