ed448GenerateKey function
Generates a random 57-byte Ed448 private key.
Implementation
Uint8List ed448GenerateKey() {
final privateKey = Uint8List(ed448.KEY_LENGTH);
final random = Random.secure();
for (var i = 0; i < privateKey.length; i++) {
privateKey[i] = random.nextInt(256);
}
privateKey[ed448.KEY_LENGTH - 1] &= 0x7f;
return privateKey;
}