func main() {
encoded, score, err := libcryptopals.SingleBitBruteForce("1b37373331363f78151b7f2b783431333d78397828372d363c78373e783a393b3736")
if err != nil {
fmt.Println("Uh... the input is broken?")
return
}
fmt.Println("With a score of", score, ",", encoded)
}
func DecodeFile(filename string) *AnalysisResult {
results := make(chan *AnalysisResult, 10)
f, err := os.Open(filename)
if err != nil {
fmt.Println(err)
return nil
}
defer func() {
f.Close()
}()
reader := bufio.NewReader(f)
linecount := 0
for {
buf, _, err := reader.ReadLine()
if err == io.EOF {
break // Done
}
if err != nil {
fmt.Println(err)
return nil
}
if len(buf) != 60 {
fmt.Println("Count", len(buf), string(buf))
continue
}
go func(tstring string) {
decoded, score, err := libcryptopals.SingleBitBruteForce(tstring)
result := &AnalysisResult{Decoded: &decoded, Score: score, Error: err, Original: &tstring}
results <- result
}(string(buf))
linecount++
}
var best_result, cur_result *AnalysisResult
for ; linecount > 0; linecount-- {
cur_result = <-results
if best_result == nil || (cur_result.Error == nil && cur_result.Score >= best_result.Score) {
best_result = cur_result
}
if cur_result.Error != nil {
fmt.Println("Got an error", cur_result.Error, "from", *(cur_result.Original))
}
}
return best_result
}