func main() {
flag.Parse()
fmt.Printf("Generating seed words and key.\n")
if *password != "" {
fmt.Printf("Using password %q.\n", *password)
} else {
fmt.Printf("Not using any password.\n")
}
m := mnemonic.NewFromFileOrDie(*wordFile)
var err error
if *wordCount != 0 {
_, err = m.GenerateWords(*wordCount)
} else {
_, err = m.GenerateEntropy(*entropySize)
}
if err != nil {
log.Fatalf("Failed to generate seed words: %v\n", err)
}
words, key, err := m.GenerateSeedWithPassword(*password)
if err != nil {
log.Fatalf("Failed to generate seed: %v\n", err)
log.Fatal(err)
}
fmt.Printf("Seed words (%d): %q\nKey (512 bits): %s\n",
len(words), mnemonic.ListToString(words), hex.EncodeToString(key))
}
func TestMnemonicGeneration(t *testing.T) {
m := mnemonic.NewFromFileOrDie("wordlist.txt")
file, err := ioutil.ReadFile("test_vectors.json")
if err != nil {
t.Fatalf("File error: %v\n", err)
}
var tests testSet
err = json.Unmarshal(file, &tests)
if err != nil {
t.Fatalf("File parsing error: %v\n", err)
}
for i, test := range tests.English {
data, err := hex.DecodeString(test[0])
if err != nil {
t.Fatalf("Test %d: Failed to decode hex encoded data %q: %v",
i, test[0], err)
}
words, err := m.GenerateFromData(data)
if err != nil {
t.Fatalf("Test %d: Failed to generator words: %v", i, err)
}
str := mnemonic.ListToString(words)
if str != test[1] {
t.Errorf("Test %d: Words don't match: Got %q, expected %q.",
i, str, test[1])
}
res, err := m.VerifyChecksum(strings.Split(str, " "))
if err != nil {
t.Fatalf("Test %d: Failed to verify checksum: %v", i, err)
}
if !res {
t.Fatalf("Test %d: Checksum mismatch.", i)
}
words, key, err := m.GenerateSeedWithPassword("TREZOR")
if err != nil {
t.Fatalf("Test %d: Failed to generator seed: %v", i, err)
}
encoded := hex.EncodeToString(key)
if encoded != test[2] {
t.Errorf("Test %d: Key doesn't match: Got %q, expected %q.",
i, encoded, test[2])
}
key2 := mnemonic.SeedFromWordsPassword(words, "TREZOR")
encoded2 := hex.EncodeToString(key2)
if encoded2 != encoded {
t.Errorf("Test %d: Couldn't recover key: Got %x, expected %x.",
i, key2, key)
}
}
}