Purpose is to benchmark crypto operations in different runtimes(JS, CPP, Swift) available to react native. Gives a bit of guidance for react native developers when looking to improve crypto operations in their apps.
This benchmark will run ECDSA verification in three different environments from react native:
- Pure JS using elliptic library
- CPP(wolfssl) via react native JSI
- Swift(Swift Crypto) via react native JSI
Steps: get the app running like a usual react native app
yarn install
cd ios && pod install && cd ..
yarn iosEdit App.tsx to update iterations and message size(defaults to 30, message size is 4096 bytes)
Example benchmark on iPhone 11, ECDSA P-256 verification, message size 4096 bytes and 30 iterations
- Cpp is over 2361 times faster than using pure JS
- Swift is over 1153 times faster than using pure JS
- Cpp is over 2 times faster than using swift
Average duration of verification in milliseconds
| iterations, message size | Javascript | Swift | Cpp |
|---|---|---|---|
| 1, 256 | 199.098 | 0.241 | 0.128 |
| 1, 4096 | 201.070 | 0.249 | 0.113 |
| 30, 4096 | 198.387 | 0.172 | 0.084 |
TODOs:
- Explain how to link wolfssl lib and headers to xcode project. Describe how to enable hardware acceleration for wolfssl
- A benchmark of batch verification would be interesting(would improve memory transfers between JS and native world)
- Could add SHA256 benchmarks too
- Add comparison of v8 vs JSC vs Hermes JS engine, differences are really only felt on android