Initial data commit

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

@@ -0,0 +1,52 @@
+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
+    }
+}