blob: 114785d2f9ac37dd32543a1fe0d107a08cf24f3a (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
package main
import (
"encoding/hex"
"fmt"
"sort"
"testing"
"time"
"roseh.moe/pkg/roseh.moe/internal/pwhash"
)
func mustHex(s string) []byte {
b, err := hex.DecodeString(s)
if err != nil {
panic(err)
}
return b
}
const password = "emcee polio cardiac disclose superglue clapper cruelness stonework tingly unarmored"
var salt = mustHex("a0aa6971f38827e5")
var iterations int
func BenchmarkHashIter(b *testing.B) {
for b.Loop() {
pwhash.HashIter(password, salt, iterations)
}
}
func main() {
const targetDuration = 5 * time.Second
for iterations = 8192; time.Duration(testing.Benchmark(BenchmarkHashIter).NsPerOp()) < targetDuration; iterations *= 2 {
}
lo := iterations / 2
hi := iterations
fmt.Println(lo + sort.Search(hi-lo, func(i int) bool {
iterations = lo + i
return time.Duration(testing.Benchmark(BenchmarkHashIter).NsPerOp()) > targetDuration
}))
}
|
