func main() {
flag.StringVar(&outputFile, "o", defaultOutputFile, "Output key file. Ex: -a='./mykey.dat'. Default: ./key.dat")
flag.IntVar(&keySize, "b", defaultKeySize, "Key Size(bits). Ex: -b='256'. Default: 512 bits")
flag.Parse()
if err := keygen.GenSymmetricKeyFile(keySize, outputFile, defaultPerm); err != nil {
fmt.Printf("Generate symmetric key error: %v\n", err)
} else {
fmt.Printf("Generate symmetric key successfully.\n")
}
}
func ExampleGenSymmetricKeyFile() {
var err error
size := 512 // Key size = 256 bits.
u, _ := user.Current()
username := u.Username
keyFile := fmt.Sprintf("/home/%v/my.key", username) // make absolute key path for current user.
p, err := pathhelper.GetAbsPath(keyFile)
if err != nil {
fmt.Printf("GetAbsPath(%v) error: %v\n", keyFile, err)
}
fmt.Fprintf(os.Stderr, "Key file: %v\n", p)
if err = keygen.GenSymmetricKeyFile(size, p, 0660); err != nil {
fmt.Printf("GenSymmetricKeyFile(%v) error: %v\n", size, err)
}
// Output:
}