Create veracrypt_container_truncator.go

veracrypt_container_truncator.go

@@ -0,0 +1,129 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+)
+
+// version history
+var version = "v0.1.0, 2023-01-23; initial release"
+
+// clear screen function
+func clearScreen() {
+	switch runtime.GOOS {
+	case "linux":
+		cmd := exec.Command("clear")
+		cmd.Stdout = os.Stdout
+		cmd.Run()
+	case "darwin":
+		cmd := exec.Command("clear")
+		cmd.Stdout = os.Stdout
+		cmd.Run()
+		fmt.Println("Note, program has not been tested on Mac OS")
+		time.Sleep(5 * time.Second)
+	case "windows":
+		cmd := exec.Command("cmd", "/c", "cls")
+		cmd.Stdout = os.Stdout
+		cmd.Run()
+	}
+}
+
+func welcome() {
+	fmt.Println(" ----------------------- ")
+	fmt.Println("|       Cyclone's       |")
+	fmt.Println("| Truecrypt / Veracrypt |")
+	fmt.Println("|  Container Truncater  |")
+	fmt.Println(" ----------------------- ")
+	fmt.Println(version)
+	fmt.Println()
+	fmt.Println("Program will truncate a Truecrypt or Veracrypt Container")
+	fmt.Println("and save a new file as 'truncated_orginal_filename'.")
+	fmt.Println("You can then run this file with hashcat.")
+	fmt.Println("Program only supports .tc & .vc container files.")
+	fmt.Println()
+}
+
+func truncate() {
+	// Get all files in current directory with .tc or .vc extension
+	files, err := filepath.Glob("*.tc")
+	files2, err := filepath.Glob("*.vc")
+	files = append(files, files2...)
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+	if len(files) == 0 {
+		fmt.Println("No files found with extension .tc or .vc")
+		return
+	}
+
+	// filter files that have already been truncated
+	var truncatedFiles []string
+	for _, file := range files {
+		if !strings.HasPrefix(file, "truncate_") {
+			truncatedFiles = append(truncatedFiles, file)
+		}
+	}
+	if len(truncatedFiles) == 0 {
+		fmt.Println("All files have already been truncated.")
+		return
+	}
+
+	// Print list of files and ask user to select one
+	fmt.Println("Select a container file to truncate:")
+	for i, file := range truncatedFiles {
+		fmt.Printf("%d) %s\n", i+1, file)
+	}
+	var selected int
+	fmt.Scan(&selected)
+
+	// Get selected file
+	inputFile := truncatedFiles[selected-1]
+
+	// Get output file name by prepending "_truncate" to input file name
+	outputFile := "truncate_" + inputFile
+
+	// Check if output file already exists
+	if _, err := os.Stat(outputFile); !os.IsNotExist(err) {
+		fmt.Println("Error: Output file already exists.")
+		return
+	}
+
+	// Open input file
+	in, err := os.Open(inputFile)
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+	defer in.Close()
+
+	// Open output file
+	out, err := os.Create(outputFile)
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+	defer out.Close()
+
+	// Copy 512 bytes from input file to output file
+	_, err = io.CopyN(out, in, 512)
+	if err != nil {
+		fmt.Println("Error:", err)
+	} else {
+		fmt.Println("File truncated successfully.")
+	}
+}
+
+func main() {
+	clearScreen()
+	welcome()
+	truncate()
+}
+
+// end of program