88bc0aa607
Calculated acc. to https://words.filippo.io/the-scrypt-parameters/ , and add benchmarks to double-check the numbers. They match.
46 lines
1.8 KiB
Go
46 lines
1.8 KiB
Go
package configfile
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import (
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"fmt"
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"testing"
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)
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/*
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$ time go test -bench . -run none
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goos: linux
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goarch: amd64
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pkg: github.com/rfjakob/gocryptfs/v2/internal/configfile
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cpu: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
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BenchmarkScryptN/10-4 339 3488649 ns/op 1053167 B/op 22 allocs/op ... 3ms+1MiB
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BenchmarkScryptN/11-4 175 6816072 ns/op 2101742 B/op 22 allocs/op
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BenchmarkScryptN/12-4 87 13659346 ns/op 4198898 B/op 22 allocs/op
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BenchmarkScryptN/13-4 43 27443071 ns/op 8393209 B/op 22 allocs/op
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BenchmarkScryptN/14-4 21 56931664 ns/op 16781820 B/op 22 allocs/op
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BenchmarkScryptN/15-4 10 108494502 ns/op 33559027 B/op 22 allocs/op
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BenchmarkScryptN/16-4 5 217347137 ns/op 67113465 B/op 22 allocs/op ... 217ms+67MiB
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BenchmarkScryptN/17-4 3 449680138 ns/op 134222362 B/op 22 allocs/op
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BenchmarkScryptN/18-4 2 867481653 ns/op 268440064 B/op 22 allocs/op
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BenchmarkScryptN/19-4 1 1738085333 ns/op 536875536 B/op 23 allocs/op
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BenchmarkScryptN/20-4 1 3508224867 ns/op 1073746448 B/op 23 allocs/op
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BenchmarkScryptN/21-4 1 9536561994 ns/op 2147488272 B/op 23 allocs/op
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BenchmarkScryptN/22-4 1 16937072495 ns/op 4294971920 B/op 23 allocs/op
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PASS
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ok github.com/rfjakob/gocryptfs/v2/internal/configfile 47.545s
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*/
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func BenchmarkScryptN(b *testing.B) {
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for n := 10; n <= 20; n++ {
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b.Run(fmt.Sprintf("%d", n), func(b *testing.B) {
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benchmarkScryptN(b, n)
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})
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}
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}
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func benchmarkScryptN(b *testing.B, n int) {
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kdf := NewScryptKDF(n)
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for i := 0; i < b.N; i++ {
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kdf.DeriveKey(testPw)
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}
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b.ReportAllocs()
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}
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