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-## Curve25519 on Cortex-M0 shootout
-Implementation | Optimisation | Cycles | Code size | Stack usage
--------------- | ------------ | --------- | --------- | -----------
-donna | `-Os` | 15748K | 7.4KB | 3148B
-donna | `-O2` | 15218K | 7.9KB | 3148B
-donna | `-O3` | 12907K | 16KB | 3380B
-naclref | `-Os` | 47813K | 3.2KB | 4012B
-naclref | `-O2` | 34309K | 3.5KB | 4036B
-naclref | `-O3` | 35059K | 4.1KB | 4044B
-tweetnacl | `-Os` | 75979K | 2.8KB | 2244B
-tweetnacl | `-O2` | 68876K | 3.0KB | 2268B
-tweetnacl | `-O3` | 69622K | 8.9KB | 2900B
-
-naclref at -O2 seems to give a good balance. If you can spare the flash,
-donna is quite significantly quicker.
-