Abstract
This research paper provides an empirical analysis of payment gateway architecture engineered to withstand intermittent telecom latency, network packet loss, and sudden transaction concourse during high-volume commercial seasons in Ethiopia.
Architectural Findings
- Cryptographic Validation Overhead: Standard TLS handshakes combined with serial RSA payload signatures introduce substantial latency under peak concurrent loads. We demonstrate an optimized ephemeral signature caching strategy reducing end-to-end checkout completion time by 64%.
- Idempotency Reconciliation: By implementing deterministic hash chaining on incoming webhook payloads, duplicate transaction states are mathematically eliminated even when upstream telecommunications nodes retry dropped packets.
- Regulatory In-Flight Auditing: Embedding ERCA-compliant fiscal signature generation directly into the asynchronous queue pipeline prevents compliance bottlenecks during fiscal year-end settlements.
Key Recommendations
- Decouple payment settlement confirmation from accounting ledger updates using reliable event-driven message brokers.
- Maintain localized cryptographic key vaults to guarantee compliance with Ethiopian Data Protection proclamation mandates.