Kotlin Multiplatform shares business code while platform trust mechanisms remain different. Verify Android and iOS key management, evidence and distribution integrations separately.
Evaluation approach
Separate shared code from platform protection interfaces. A common risk model can be useful, but signal generation and attestation must follow each platform's requirements.
Application example
When passing platform results to a shared session layer, do not convert an unsupported result into a safe result.
Limits and considerations
One boolean interface for both platforms can conceal important differences in assurance.
Shared business logic, separate platform services
Shared code does not give Android Keystore and iOS Keychain identical trust models. Design platform-specific key, signature and integrity integrations explicitly rather than hiding differences behind a common API.
Preserve details such as result source and availability. Unsupported features must not silently succeed. Validate each platform's distribution build with its own acceptance scenarios.
Checks and decisions
- Model platform results
- Preserve uncertainty
- Test each distribution separately
Use shared architecture to reduce duplication while retaining security differences.
Sources
The primary references above provide the technical basis. Example workflows and evaluation suggestions are this publication’s explanations, not independent test results for a particular product.