Data commit

Task/Substitution-cipher/Go/substitution-cipher.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+    "fmt"
+    "strings"
+)
+
+var key = "]kYV}(!7P$n5_0i R:?jOWtF/=-pe'AD&@r6%ZXs\"v*N[#wSl9zq2^+g;LoB`aGh{3.HIu4fbK)mU8|dMET><,Qc\\C1yxJ"
+
+func encode(s string) string {
+    bs := []byte(s)
+    for i := 0; i < len(bs); i++ {
+        bs[i] = key[int(bs[i]) - 32]
+    }
+    return string(bs)
+}
+
+func decode(s string) string {
+    bs := []byte(s)
+    for i := 0; i < len(bs); i++ {
+        bs[i] = byte(strings.IndexByte(key, bs[i]) + 32)
+    }
+    return string(bs)
+}
+
+func main() {
+    s := "The quick brown fox jumps over the lazy dog, who barks VERY loudly!"
+    enc := encode(s)
+    fmt.Println("Encoded: ", enc)
+    fmt.Println("Decoded: ", decode(enc))
+}