Benchmark openssl RSA verify/s on FxOS devices
Curious how fast FirefoxOS devices can verify signatures? Well, I am, as I’d like to know how much we potentially delay installs when using stronger signature keys. The following has been tested using curl’s openssl static binary for Android.
adb push openssl /data/local
adb shell /data/local/openssl speed [rsa4096|rsa2048]
Results
| Device | RSA 2048 verify (sign) | RSA 4096 verify (sign) |
|---|---|---|
| FirefoxOS Tarako (35USD device) | 535.8/s (14.2/s) | 156.7/s (2.2/s) |
| FirefoxOS Flame (Dev. device) | 752.3/s (19.5/s) | 221.1/s (3.1/s) |
| Sony Xperia Z3 Compact | 2141.4/s (55.4s/) | 645.2/s (8.6/s) |
| i7 4500U (laptop) | 25856.4/s (784.2/s) | 6983.0/s (109.1/s) |
So that means for verifying 1 4096 RSA signature:
- Tarako takes ~6.5ms
- Flame takes ~4.5ms
- Z3 Compact takes ~1.5ms
- Laptop takes ~0.14ms
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