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This commit is contained in:
Henry Varona 2016-12-01 07:49:16 -04:30
parent a4a5b85860
commit 5b08e2fe36
1 changed files with 25 additions and 20 deletions
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43
src/main/java/com/luminiasoft/bitshares/FileBin.java
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@ -3,6 +3,7 @@ package com.luminiasoft.bitshares;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.luminiasoft.bitshares.crypto.AndroidRandomSource;
import com.luminiasoft.bitshares.crypto.SecureRandomStrengthener;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
@ -61,7 +62,7 @@ public abstract class FileBin {
try {
byte[] encKey = new byte[32];
SecureRandomStrengthener randomStrengthener = SecureRandomStrengthener.getInstance();
//randomStrengthener.addEntropySource(new AndroidRandomSource());
randomStrengthener.addEntropySource(new AndroidRandomSource());
SecureRandom secureRandom = randomStrengthener.generateAndSeedRandomNumberGenerator();
secureRandom.nextBytes(encKey);
byte[] encKey_enc = encryptAES(encKey, password.getBytes("UTF-8"));
@ -98,7 +99,6 @@ public abstract class FileBin {
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) {
@ -157,28 +157,33 @@ public abstract class FileBin {
return null;
}
public static byte[] decompressDataLZMA(byte[] inputBytes) {
LZMAInputStream in = null;
private static byte[] decryptAES(byte[] input, byte[] key) {
try {
ByteArrayInputStream input = new ByteArrayInputStream(inputBytes);
ByteArrayOutputStream output = new ByteArrayOutputStream(2048);
in = new LZMAInputStream(input);
int size;
while ((size = in.read()) != -1) {
output.write(size);
}
in.close();
return output.toByteArray();
} catch (IOException ex) {
} finally {
try {
in.close();
} catch (IOException ex) {
}
MessageDigest md = MessageDigest.getInstance("SHA-512");
byte[] result = md.digest(key);
byte[] ivBytes = new byte[16];
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(false, new ParametersWithIV(new KeyParameter(sksBytes), ivBytes));
byte[] out = new byte[cipher.getOutputSize(input.length)];
int proc = cipher.processBytes(input, 0, input.length, out, 0);
cipher.doFinal(out, proc);
//Unpadding
byte[] temp = new byte[input.length + (16 - (input.length % 16))];
System.arraycopy(input, 0, temp, 0, input.length);
Arrays.fill(temp, input.length, temp.length, (byte) (16 - (input.length % 16)));
temp = new byte[out.length - 16];
System.arraycopy(out, 0, temp, 0, temp.length);
return temp;
} catch (NoSuchAlgorithmException | DataLengthException | IllegalStateException | InvalidCipherTextException ex) {
}
return null;
}
public static String byteToString(byte[] input) {
StringBuilder result = new StringBuilder();
for (byte in : input) {