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2021-09-07stupidgcm: replace chacha20poly1305_seal with generic aead_sealJakob Unterwurzacher
2021-09-07stupidgcm: batch C calls in chacha20poly1305_sealJakob Unterwurzacher
Go has a high overhead for each C call, so batch all openssl operations in the new C function chacha20poly1305_seal. Benchmark results: internal/speed$ go test -bench BenchmarkStupidXchacha -count 10 > old.txt internal/speed$ go test -bench BenchmarkStupidXchacha -count 10 > new.txt internal/speed$ benchstat old.txt new.txt name old time/op new time/op delta StupidXchacha-4 8.79µs ± 1% 7.25µs ± 1% -17.54% (p=0.000 n=10+10) name old speed new speed delta StupidXchacha-4 466MB/s ± 1% 565MB/s ± 1% +21.27% (p=0.000 n=10+10)