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exporting importing files

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This commit is contained in:
Henry Varona 2016-11-30 11:09:01 -04:30
parent a505e29cea
commit a4a5b85860
2 changed files with 12 additions and 20 deletions
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27
src/main/java/com/luminiasoft/bitshares/FileBin.java
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@ -53,7 +53,8 @@ public abstract class FileBin {
*
* @param BrainKey The input brainkey
* @param password The pin code
* @return The array byte of the file, or null if an error ocurred
* @param accountName The Account Name
* @return The array byte of the file, or null if an error happens
*/
public static byte[] getBytesFromBrainKey(String BrainKey, String password, String accountName) {
@ -66,6 +67,9 @@ public abstract class FileBin {
byte[] encKey_enc = encryptAES(encKey, password.getBytes("UTF-8"));
byte[] encBrain = encryptAES(BrainKey.getBytes("ASCII"), encKey);
/**
* Data to Store
*/
JsonObject wallet = new JsonObject();
wallet.add("encryption_key", new JsonParser().parse(byteToString(encKey_enc)));
wallet.add("encrypted_brainkey", new JsonParser().parse(byteToString(encBrain)));
@ -76,7 +80,6 @@ public abstract class FileBin {
jsonAccountName.add("name", new JsonParser().parse(accountName));
accountNames.add(jsonAccountName);
wallet_object.add("linked_accounts", accountNames);
byte[] compressedData = Util.compress(wallet_object.toString().getBytes("UTF-8"));
MessageDigest md = MessageDigest.getInstance("SHA-256");
byte[] checksum = md.digest(compressedData);
@ -87,21 +90,19 @@ public abstract class FileBin {
secureRandom.nextBytes(randomKey);
ECKey randomECKey = ECKey.fromPrivate(md.digest(randomKey));
byte[] randPubKey = randomECKey.getPubKey();
byte[] finalKey = randomECKey.getPubKeyPoint().multiply(ECKey.fromPrivate(md.digest(password.getBytes("UTF-8"))).getPrivKey()).normalize().getXCoord().getEncoded();
MessageDigest md1 = MessageDigest.getInstance("SHA-512");
finalKey = md1.digest(finalKey);
rawData = encryptAES(rawData, finalKey);
rawData = encryptAES(rawData, byteToString(finalKey).getBytes());
byte[] result = new byte[rawData.length + randPubKey.length];
System.arraycopy(randPubKey, 0, result, 0, randPubKey.length);
System.arraycopy(rawData, 0, result, randPubKey.length, rawData.length);
System.out.println("result : " + byteToString(result));
return result;
} catch (UnsupportedEncodingException | NoSuchAlgorithmException ex) {
ex.printStackTrace();
}
return null;
}
@ -140,7 +141,6 @@ public abstract class FileBin {
System.arraycopy(result, 32, ivBytes, 0, 16);
byte[] sksBytes = new byte[32];
System.arraycopy(result, 0, sksBytes, 0, 32);
PaddedBufferedBlockCipher cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESFastEngine()));
cipher.init(true, new ParametersWithIV(new KeyParameter(sksBytes), ivBytes));
byte[] temp = new byte[input.length + (16 - (input.length % 16))];
@ -152,14 +152,7 @@ public abstract class FileBin {
temp = new byte[out.length - 16];
System.arraycopy(out, 0, temp, 0, temp.length);
return temp;
} catch (NoSuchAlgorithmException ex) {
ex.printStackTrace();
} catch (DataLengthException ex) {
ex.printStackTrace();
} catch (IllegalStateException ex) {
ex.printStackTrace();
} catch (InvalidCipherTextException ex) {
ex.printStackTrace();
} catch (NoSuchAlgorithmException | DataLengthException | IllegalStateException | InvalidCipherTextException ex) {
}
return null;
}
@ -177,12 +170,10 @@ public abstract class FileBin {
in.close();
return output.toByteArray();
} catch (IOException ex) {
Logger.getLogger(FileBin.class.getName()).log(Level.SEVERE, null, ex);
} finally {
try {
in.close();
} catch (IOException ex) {
Logger.getLogger(FileBin.class.getName()).log(Level.SEVERE, null, ex);
}
}
return null;

5
src/main/java/com/luminiasoft/bitshares/Util.java
View file

@ -9,6 +9,7 @@ import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.tukaani.xz.XZOutputStream;
/**
* Class used to encapsulate common utility methods
@ -43,12 +44,12 @@ public class Util {
* @author Henry Varona
*/
public static byte[] compress(byte[] inputBytes) {
LZMAOutputStream out = null;
XZOutputStream out = null;
try {
ByteArrayInputStream input = new ByteArrayInputStream(inputBytes);
ByteArrayOutputStream output = new ByteArrayOutputStream(2048);
LZMA2Options options = new LZMA2Options();
out = new LZMAOutputStream(output, options,-1);
out = new XZOutputStream(output, options);
byte[] buf = new byte[inputBytes.length];
int size;
while ((size = input.read(buf)) != -1) {