RosettaCodeData/Task/Parallel-brute-force/Go/parallel-brute-force.go

53 lines
1.1 KiB
Go

package main
import (
"crypto/sha256"
"encoding/hex"
"log"
"sync"
)
var hh = []string{
"1115dd800feaacefdf481f1f9070374a2a81e27880f187396db67958b207cbad",
"3a7bd3e2360a3d29eea436fcfb7e44c735d117c42d1c1835420b6b9942dd4f1b",
"74e1bb62f8dabb8125a58852b63bdf6eaef667cb56ac7f7cdba6d7305c50a22f",
}
func main() {
log.SetFlags(0)
hd := make([][sha256.Size]byte, len(hh))
for i, h := range hh {
hex.Decode(hd[i][:], []byte(h))
}
var wg sync.WaitGroup
wg.Add(26)
for c := byte('a'); c <= 'z'; c++ {
go bf4(c, hd, &wg)
}
wg.Wait()
}
func bf4(c byte, hd [][sha256.Size]byte, wg *sync.WaitGroup) {
p := []byte("aaaaa")
p[0] = c
p1 := p[1:]
p:
for {
ph := sha256.Sum256(p)
for i, h := range hd {
if h == ph {
log.Println(string(p), hh[i])
}
}
for i, v := range p1 {
if v < 'z' {
p1[i]++
continue p
}
p1[i] = 'a'
}
wg.Done()
return
}
}