Android Open Source - bitcoin-wallet Key Ring

From Project

Back to project page bitcoin-wallet.

License

The source code is released under:

Copyright (C) 2011 by Caleb Anderson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the ...

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Java Source Code

package net.dirtyfilthy.bitcoin.wallet;
/*from  w  w  w . j a v a2 s . c  om*/
import java.io.FileNotFoundException;
import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.SecureRandom;
import java.security.cert.CertificateException;

import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;

import net.dirtyfilthy.bitcoin.core.Base58Hash160;
import net.dirtyfilthy.bouncycastle.jce.ECNamedCurveTable;
import net.dirtyfilthy.bouncycastle.jce.interfaces.ECPublicKey;
import net.dirtyfilthy.bouncycastle.jce.spec.ECParameterSpec;

public class KeyRing {
  private KeyPairGenerator generator;
  private SQLiteDatabase db;
  private String password;
  private Context context;
  public KeyRing(Context c, SQLiteDatabase db, String password) throws NoSuchAlgorithmException, NoSuchProviderException, InvalidAlgorithmParameterException, KeyStoreException, CertificateException, FileNotFoundException, IOException{
    ECParameterSpec ecSpec = ECNamedCurveTable.getParameterSpec("secp256k1");
    this.db=db;
    this.context=c;
    KeyPairGenerator generator = KeyPairGenerator.getInstance("ECDSA", Wallet.SECURITY_PROVIDER);
    generator.initialize(ecSpec, new SecureRandom());
  }
  

  KeyPair generateKeyPair() {
    KeyPair pair = generator.generateKeyPair();
    String hash=new Base58Hash160((java.security.interfaces.ECPublicKey) pair.getPublic()).toString();
    ContentValues initialValues = new ContentValues();
    initialValues.put("base58hash160",hash);
    initialValues.put("public_key", pair.getPublic().getEncoded());
    initialValues.put("private_key", pair.getPrivate().getEncoded());
    db.insert("keys", null, initialValues);
    return pair;
  }

  

}

Java Source Code List