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Updating the private key whenever the brainkey's sequence number is updated

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This commit is contained in:
Nelson R. Perez 2018-08-28 21:26:35 -05:00
parent 1e2716e89e
commit d2390b0a45
2 changed files with 18 additions and 2 deletions
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7
graphenej/src/main/java/cy/agorise/graphenej/AuthorityType.java
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@ -9,5 +9,10 @@ package cy.agorise.graphenej;
public enum AuthorityType {
OWNER,
ACTIVE,
MEMO
MEMO;
@Override
public String toString() {
return String.format("%d", this.ordinal());
}
}

13
graphenej/src/main/java/cy/agorise/graphenej/BrainKey.java
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@ -1,5 +1,7 @@
package cy.agorise.graphenej;
import android.annotation.SuppressLint;
import org.bitcoinj.core.DumpedPrivateKey;
import org.bitcoinj.core.ECKey;
import org.bitcoinj.core.NetworkParameters;
@ -69,7 +71,15 @@ public class BrainKey {
public BrainKey(String words, int sequence) {
this.mBrainKey = words;
this.sequenceNumber = sequence;
String encoded = String.format("%s %d", words, sequence);
derivePrivateKey();
}
/**
* Generates the actual private key from the brainkey + sequence number
*/
private void derivePrivateKey(){
@SuppressLint("DefaultLocale")
String encoded = String.format("%s %d", this.mBrainKey, this.sequenceNumber);
try {
MessageDigest md = MessageDigest.getInstance("SHA-512");
byte[] bytes = md.digest(encoded.getBytes("UTF-8"));
@ -142,5 +152,6 @@ public class BrainKey {
*/
public void setSequenceNumber(int sequenceNumber) {
this.sequenceNumber = sequenceNumber;
derivePrivateKey();
}
}