setSeed method
void
setSeed(
- String passphrase
)
override
Implementation
@override
void setSeed(String passphrase) {
final length = passphrase.length;
if (length >= 8) {
var subLength = passphrase.length ~/ 4;
restoreState([
passphrase.substring(0, subLength).hashCode,
passphrase.substring(subLength, 2 * subLength).hashCode,
passphrase.substring(2 * subLength, 3 * subLength).hashCode,
passphrase.substring(3 * subLength).hashCode
]);
} else if (length >= 4) {
restoreState([
passphrase.hashCode,
passphrase.substring(1).hashCode,
passphrase.substring(2).hashCode,
passphrase.substring(3).hashCode
]);
} else {
switch (length) {
case 0:
restoreState([1, 2, 3, 4]);
break;
case 1:
restoreState([passphrase.hashCode, 12, 123, 0x1234]);
break;
case 2:
restoreState([
passphrase.hashCode,
passphrase.substring(1).hashCode,
123,
0x1234
]);
break;
case 3:
restoreState([
passphrase.hashCode,
passphrase.substring(1).hashCode,
passphrase.substring(2).hashCode,
0x1234
]);
break;
}
}
}