// Function to write encrypted texts to a file
func writeCipher(message []*big.Int, fileName string) {
// Create writer and check for error
file, err := os.Create(fileName)
if err != nil {
fmt.Println("\nError, could not open file!\n")
return
}
// close file on exit and check for its returned error
defer func() {
if err := file.Close(); err != nil {
panic(err)
}
}()
// Create a writer on the opened file and write the encrypted
// data to it with some formatting
w := bufio.NewWriter(file)
w.WriteString("----------Message----------\n")
// iterate over the slice of encrypted messages and write them
// on separate lines with dividers
for _, v := range message {
w.WriteString(fmt.Sprintln(v))
w.WriteString("-----------------------------------\n")
}
w.WriteString("--------End Message--------\n")
w.Flush()
fmt.Printf("\nMessage written to file %s\n", fileName)
}
// Function to write our decrypted plaintexts to a file
func writePlainText(message string, fileName string) {
// Create writer and check for error
file, err := os.Create(fileName)
if err != nil {
fmt.Println("\nError, could not open file!\n")
return
}
// close file on exit and check for its returned error
defer func() {
if err := file.Close(); err != nil {
panic(err)
}
}()
// Output the string to a file, with a little formatting
w := bufio.NewWriter(file)
w.WriteString("----------Message----------\n")
w.WriteString(fmt.Sprintln(message))
w.WriteString("--------End Message--------\n")
w.Flush()
fmt.Printf("\nMessage written to file %s\n", fileName)
}
// Function to write encryption keys into a file
func writeKey(modulus, exponent *big.Int, fileName string) {
// Create writer and check for error
file, err := os.Create(fileName)
if err != nil {
fmt.Println("\nError, could not open file!")
return
}
// close file on exit and check for its returned error
defer func() {
if err := file.Close(); err != nil {
panic(err)
}
}()
// Write out the modulus and exponent with a little formatting to make
// it more readable
w := bufio.NewWriter(file)
w.WriteString("----------Modulus----------\n")
w.WriteString(fmt.Sprintln(modulus))
w.WriteString("--------End Modulus--------\n")
w.WriteString("----------Exponent---------\n")
w.WriteString(fmt.Sprintln(exponent))
w.WriteString("-------End Exponent--------\n")
w.Flush()
}