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SUBMITTED BY: Guest

DATE: Aug. 22, 2013, 2:38 a.m.

FORMAT: Java

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  1. import java.util.ArrayList;
  2. import java.util.Arrays;
  4. import com.google.bitcoin.core.Base58;
  5. import com.google.bitcoin.crypto.ChildNumber;
  6. import com.google.bitcoin.crypto.DeterministicHierarchy;
  7. import com.google.bitcoin.crypto.DeterministicKey;
  8. import com.google.bitcoin.crypto.HDKeyDerivation;
  9. import com.google.common.collect.ImmutableList;
  10. import com.google.common.collect.ImmutableList.Builder;
  12. /**August 22, 2013 with bitcoinJ 0.10 */
  13. public class Main {
  15. /**compare public keys of 0'/0'/0' and and 0'/0'/0
  16. * @param args none used*/
  17. public static void main(String[] args) {
  18. System.out.println("start");
  19. DeterministicHierarchy masterHrchy = new DeterministicHierarchy(
  20. HDKeyDerivation.createMasterPrivateKey("BitcoinJRulez".getBytes()));
  22. // builder for /0/0
  23. ArrayList<ChildNumber> zeroZero = new ArrayList<ChildNumber>();
  24. zeroZero.add(new ChildNumber(0, true));
  25. zeroZero.add(new ChildNumber(0, true));
  27. // builders for public and private nodes at /0/0/0
  28. Builder<ChildNumber> privateNode = new ImmutableList.Builder<ChildNumber>();
  29. privateNode.addAll(zeroZero);
  30. privateNode.add(new ChildNumber(0, true /* private */));
  31. DeterministicKey priv = masterHrchy.get(privateNode.build(), false, true);
  33. Builder<ChildNumber> pubNode = new ImmutableList.Builder<ChildNumber>();
  34. pubNode.addAll(zeroZero);
  35. pubNode.add(new ChildNumber(0, false /* public */));
  36. DeterministicKey pub = masterHrchy.get(pubNode.build(), false, true);
  38. assert Arrays.equals(priv.getPubKeyBytes(), pub.getPubKeyBytes()) :
  39. Base58.encode(priv.getPubKeyBytes()) + " vs. " + Base58.encode(pub.getPubKeyBytes());
  41. System.out.println("end");
  42. }
  44. }
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