MasterKeys.java

package main;

  
public class MasterKeys {

	public MasterKeys()

	{

	} // end func

	static private String normalizeText(String mytext) {

		// Clean up extra whitespace.
		// regex delimiter here is anything that's not a word
		String[] words = mytext.split("\\W+");
		String delimiter = " ";
		mytext = String.join(delimiter, words);
		return mytext.toLowerCase();
	}

	static public byte[] get_seed_from_mnemonic(String mnemonic) {

		// Gets a byte array of the bip32 root "seed"
		// from the electrum mnemonic phrase.
		String salt = "electrum";
		int iterations = 2048;
		mnemonic = normalizeText(mnemonic);
		byte[] saltBytes = salt.getBytes();
		byte[] mnemonicBytes = mnemonic.getBytes();
		byte[] seedBytes = PBKDF2.hmac("SHA512", mnemonicBytes, saltBytes, iterations);
		return seedBytes;

	}

	// -------------------DEBUGGING MOSTLY OR DISPLAY READABLE TO
	// USER-----------------------
	public static String get_hex_version_of_seed(byte[] seedBytes) {

		return Util.bytesToHex(seedBytes);
	}

} // end class