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| -rw-r--r-- | web/server/h2o/libh2o/deps/picotls/deps/cifra/curve25519-shootout.md | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/deps/picotls/deps/cifra/curve25519-shootout.md b/web/server/h2o/libh2o/deps/picotls/deps/cifra/curve25519-shootout.md new file mode 100644 index 00000000..6f057589 --- /dev/null +++ b/web/server/h2o/libh2o/deps/picotls/deps/cifra/curve25519-shootout.md @@ -0,0 +1,16 @@ +## 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. + |