+ *
+ * This class is used to encode and decode data in Base64 format as described in RFC 1521. + *
+ *
+ * Project home page: www. source-code.biz/base64coder/java
+ * Author: Christian d'Heureuse, Inventec Informatik AG, Zurich, Switzerland
+ * Multi-licensed: EPL / LGPL / AL / BSD.
+ */
+public class Base64 {
+
+ // The line separator string of the operating system.
+ private static final String systemLineSeparator = System.getProperty("line.separator");
+
+ // Mapping table from 6-bit nibbles to Base64 characters.
+ private static char[] map1 = new char[64];
+ // Mapping table from Base64 characters to 6-bit nibbles.
+ private static byte[] map2 = new byte[128];
+
+ static {
+ int i = 0;
+ for (char c = 'A'; c <= 'Z'; c++)
+ map1[i++] = c;
+ for (char c = 'a'; c <= 'z'; c++)
+ map1[i++] = c;
+ for (char c = '0'; c <= '9'; c++)
+ map1[i++] = c;
+ map1[i++] = '+';
+ map1[i++] = '/';
+ }
+
+ static {
+ for (int i = 0; i < map2.length; i++)
+ map2[i] = -1;
+ for (int i = 0; i < 64; i++)
+ map2[map1[i]] = (byte) i;
+ }
+
+ // Dummy constructor.
+ private Base64() {
+ }
+
+ /**
+ * Encodes a string into Base64 format. No blanks or line breaks are inserted.
+ *
+ * @param s A String to be encoded.
+ * @return A String containing the Base64 encoded data.
+ */
+ public static String encodeString(String s) {
+ return new String(encode(s.getBytes()));
+ }
+
+ /**
+ * Encodes a byte array into Base 64 format and breaks the output into lines of 76 characters. This method is compatible with
+ * sun.misc.BASE64Encoder.encodeBuffer(byte[]).
+ *
+ * @param in An array containing the data bytes to be encoded.
+ * @return A String containing the Base64 encoded data, broken into lines.
+ */
+ public static String encodeLines(byte[] in) {
+ return encodeLines(in, 0, in.length, 76, systemLineSeparator);
+ }
+
+ /**
+ * Encodes a byte array into Base 64 format and breaks the output into lines.
+ *
+ * @param in An array containing the data bytes to be encoded.
+ * @param iOff Offset of the first byte in in to be processed.
+ * @param iLen Number of bytes to be processed in in, starting at iOff.
+ * @param lineLen Line length for the output data. Should be a multiple of 4.
+ * @param lineSeparator The line separator to be used to separate the output lines.
+ * @return A String containing the Base64 encoded data, broken into lines.
+ */
+ public static String encodeLines(byte[] in, int iOff, int iLen, int lineLen, String lineSeparator) {
+ int blockLen = (lineLen * 3) / 4;
+ if (blockLen <= 0)
+ throw new IllegalArgumentException();
+ int lines = (iLen + blockLen - 1) / blockLen;
+ int bufLen = ((iLen + 2) / 3) * 4 + lines * lineSeparator.length();
+ StringBuilder buf = new StringBuilder(bufLen);
+ int ip = 0;
+ while (ip < iLen) {
+ int l = Math.min(iLen - ip, blockLen);
+ buf.append(encode(in, iOff + ip, l));
+ buf.append(lineSeparator);
+ ip += l;
+ }
+ return buf.toString();
+ }
+
+ /**
+ * Encodes a byte array into Base64 format. No blanks or line breaks are inserted in the output.
+ *
+ * @param in An array containing the data bytes to be encoded.
+ * @return A character array containing the Base64 encoded data.
+ */
+ public static char[] encode(byte[] in) {
+ return encode(in, 0, in.length);
+ }
+
+ /**
+ * Encodes a byte array into Base64 format. No blanks or line breaks are inserted in the output.
+ *
+ * @param in An array containing the data bytes to be encoded.
+ * @param iLen Number of bytes to process in in.
+ * @return A character array containing the Base64 encoded data.
+ */
+ public static char[] encode(byte[] in, int iLen) {
+ return encode(in, 0, iLen);
+ }
+
+ /**
+ * Encodes a byte array into Base64 format. No blanks or line breaks are inserted in the output.
+ *
+ * @param in An array containing the data bytes to be encoded.
+ * @param iOff Offset of the first byte in in to be processed.
+ * @param iLen Number of bytes to process in in, starting at iOff.
+ * @return A character array containing the Base64 encoded data.
+ */
+ public static char[] encode(byte[] in, int iOff, int iLen) {
+ int oDataLen = (iLen * 4 + 2) / 3; // output length without padding
+ int oLen = ((iLen + 2) / 3) * 4; // output length including padding
+ char[] out = new char[oLen];
+ int ip = iOff;
+ int iEnd = iOff + iLen;
+ int op = 0;
+ while (ip < iEnd) {
+ int i0 = in[ip++] & 0xff;
+ int i1 = ip < iEnd ? in[ip++] & 0xff : 0;
+ int i2 = ip < iEnd ? in[ip++] & 0xff : 0;
+ int o0 = i0 >>> 2;
+ int o1 = ((i0 & 3) << 4) | (i1 >>> 4);
+ int o2 = ((i1 & 0xf) << 2) | (i2 >>> 6);
+ int o3 = i2 & 0x3F;
+ out[op++] = map1[o0];
+ out[op++] = map1[o1];
+ out[op] = op < oDataLen ? map1[o2] : '=';
+ op++;
+ out[op] = op < oDataLen ? map1[o3] : '=';
+ op++;
+ }
+ return out;
+ }
+
+ /**
+ * Decodes a string from Base64 format. No blanks or line breaks are allowed within the Base64 encoded input data.
+ *
+ * @param s A Base64 String to be decoded.
+ * @return A String containing the decoded data.
+ * @throws IllegalArgumentException If the input is not valid Base64 encoded data.
+ */
+ public static String decodeString(String s) {
+ return new String(decode(s));
+ }
+
+ /**
+ * Decodes a byte array from Base64 format and ignores line separators, tabs and blanks. CR, LF, Tab and Space characters are ignored in the input data.
+ * This method is compatible with sun.misc.BASE64Decoder.decodeBuffer(String).
+ *
+ * @param s A Base64 String to be decoded.
+ * @return An array containing the decoded data bytes.
+ * @throws IllegalArgumentException If the input is not valid Base64 encoded data.
+ */
+ public static byte[] decodeLines(String s) {
+ char[] buf = new char[s.length()];
+ int p = 0;
+ for (int ip = 0; ip < s.length(); ip++) {
+ char c = s.charAt(ip);
+ if (c != ' ' && c != '\r' && c != '\n' && c != '\t')
+ buf[p++] = c;
+ }
+ return decode(buf, 0, p);
+ }
+
+ /**
+ * Decodes a byte array from Base64 format. No blanks or line breaks are allowed within the Base64 encoded input data.
+ *
+ * @param s A Base64 String to be decoded.
+ * @return An array containing the decoded data bytes.
+ * @throws IllegalArgumentException If the input is not valid Base64 encoded data.
+ */
+ public static byte[] decode(String s) {
+ return decode(s.toCharArray());
+ }
+
+ /**
+ * Decodes a byte array from Base64 format. No blanks or line breaks are allowed within the Base64 encoded input data.
+ *
+ * @param in A character array containing the Base64 encoded data.
+ * @return An array containing the decoded data bytes.
+ * @throws IllegalArgumentException If the input is not valid Base64 encoded data.
+ */
+ public static byte[] decode(char[] in) {
+ return decode(in, 0, in.length);
+ }
+
+ /**
+ * Decodes a byte array from Base64 format. No blanks or line breaks are allowed within the Base64 encoded input data.
+ *
+ * @param in A character array containing the Base64 encoded data.
+ * @param iOff Offset of the first character in in to be processed.
+ * @param iLen Number of characters to process in in, starting at iOff.
+ * @return An array containing the decoded data bytes.
+ * @throws IllegalArgumentException If the input is not valid Base64 encoded data.
+ */
+ public static byte[] decode(char[] in, int iOff, int iLen) {
+ if (iLen % 4 != 0)
+ throw new IllegalArgumentException("Length of Base64 encoded input string is not a multiple of 4.");
+ while (iLen > 0 && in[iOff + iLen - 1] == '=')
+ iLen--;
+ int oLen = (iLen * 3) / 4;
+ byte[] out = new byte[oLen];
+ int ip = iOff;
+ int iEnd = iOff + iLen;
+ int op = 0;
+ while (ip < iEnd) {
+ int i0 = in[ip++];
+ int i1 = in[ip++];
+ int i2 = ip < iEnd ? in[ip++] : 'A';
+ int i3 = ip < iEnd ? in[ip++] : 'A';
+ if (i0 > 127 || i1 > 127 || i2 > 127 || i3 > 127)
+ throw new IllegalArgumentException("Illegal character in Base64 encoded data.");
+ int b0 = map2[i0];
+ int b1 = map2[i1];
+ int b2 = map2[i2];
+ int b3 = map2[i3];
+ if (b0 < 0 || b1 < 0 || b2 < 0 || b3 < 0)
+ throw new IllegalArgumentException("Illegal character in Base64 encoded data.");
+ int o0 = (b0 << 2) | (b1 >>> 4);
+ int o1 = ((b1 & 0xf) << 4) | (b2 >>> 2);
+ int o2 = ((b2 & 3) << 6) | b3;
+ out[op++] = (byte) o0;
+ if (op < oLen)
+ out[op++] = (byte) o1;
+ if (op < oLen)
+ out[op++] = (byte) o2;
+ }
+ return out;
+ }
+
+} // end class Base64Coder
diff --git a/src/main/java/Obfuscator.java b/src/main/java/Obfuscator.java
new file mode 100644
index 0000000..c538943
--- /dev/null
+++ b/src/main/java/Obfuscator.java
@@ -0,0 +1,18 @@
+ public class Obfuscator {
+ private SimpleEncryptor encryptor;
+ private SimpleObfuscator obfuscator;
+
+ public Obfuscator(byte[] salt, byte[] key) {
+ encryptor = new SimpleEncryptor(salt);
+ obfuscator = new SimpleObfuscator(key);
+ }
+
+
+ public byte[] obfuscate(byte[] source) {
+ return encryptor.encrypt(obfuscator.obfuscate(source));
+ }
+
+ public byte[] unobfuscate(byte[] source) {
+ return obfuscator.unobfuscate(encryptor.decrypt(source));
+ }
+}
diff --git a/src/main/java/SimpleEncryptor.java b/src/main/java/SimpleEncryptor.java
new file mode 100644
index 0000000..69fa483
--- /dev/null
+++ b/src/main/java/SimpleEncryptor.java
@@ -0,0 +1,112 @@
+import org.bouncycastle.crypto.digests.SHA256Digest;
+import org.bouncycastle.crypto.generators.PKCS5S2ParametersGenerator;
+import org.bouncycastle.crypto.params.KeyParameter;
+
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.PBEKeySpec;
+import javax.crypto.spec.SecretKeySpec;
+import java.nio.charset.Charset;
+import java.security.GeneralSecurityException;
+import java.security.spec.KeySpec;
+
+
+public class SimpleEncryptor {
+
+ public static final String DEFAULT_CIPHER_ALGORITHM = "AES/CBC/PKCS5Padding";
+
+ private static final Charset characterSetUtf8 = Charset.forName("UTF-8");
+
+ private static final Charset characterSetAscii = Charset.forName("US-ASCII");
+
+ private static final byte[] IV = {10, 2, 3, -4, 20, 23, 47, -38, 27, -22, 14, -20, -22, 37, 36, 54};
+ private static final byte[] KeyValue = new byte[]{82, 26, -72, 65, -36, 122, -35, 0, -87, 41 - 39, 42, 27, 44, 6 - 97, 86, -36, 124, 115, 82, -97, 115, -85, 40, 107, -17, 120, -10, -107, 13, -48};
+ private Cipher encryptor;
+ private Cipher decryptor;
+
+ public SimpleEncryptor(byte[] salt) {
+ this(DEFAULT_CIPHER_ALGORITHM, IV, KeyValue, salt);
+ }
+
+ public SimpleEncryptor(byte[] IV, byte[] keyValue, byte[] salt) {
+ this(DEFAULT_CIPHER_ALGORITHM, IV, keyValue, salt);
+ }
+
+ public SimpleEncryptor(String cipherAlgorithm, byte[] IV, byte[] keyValue, byte[] salt) {
+ try {
+
+
+// SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
+// KeySpec keySpec = new PBEKeySpec(new String(keyValue, characterSetAscii).toCharArray(), salt, 2, 256);
+// SecretKey tmp = factory.generateSecret(keySpec);
+//
+//
+
+
+ //PBKDF2WithHmacSHA256
+ final PKCS5S2ParametersGenerator gen = new PKCS5S2ParametersGenerator(new SHA256Digest());
+ gen.init(keyValue, salt, 2);
+ final byte[] dk = ((KeyParameter) gen.generateDerivedParameters(256)).getKey();
+
+ SecretKey secret = new SecretKeySpec(dk, "AES");
+ encryptor = Cipher.getInstance(cipherAlgorithm);
+ encryptor.init(Cipher.ENCRYPT_MODE, secret, new IvParameterSpec(IV));
+ decryptor = Cipher.getInstance(cipherAlgorithm);
+ decryptor.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(IV));
+ } catch (GeneralSecurityException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+
+ public byte[] encrypt(byte[] source) {
+ if (source == null) {
+ return null;
+ }
+ try {
+ return encryptor.doFinal(source);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+ public byte[] decrypt(byte[] source) {
+ if (source == null) {
+ return null;
+ }
+ try {
+ return decryptor.doFinal(source);
+ } catch (Exception e) {
+ e.printStackTrace();
+
+ return null;
+ }
+ }
+
+ public String encrypt(String source) {
+ if (source == null) {
+ return null;
+ }
+ try {
+ return new String(Base64.encode(encryptor.doFinal(source.getBytes(characterSetAscii))));
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+ public String decrypt(String source) {
+ if (source == null) {
+ return null;
+ }
+ try {
+ return new String(decryptor.doFinal(Base64.decode(source)), characterSetUtf8);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+}
diff --git a/src/main/java/SimpleObfuscator.java b/src/main/java/SimpleObfuscator.java
new file mode 100644
index 0000000..20a9810
--- /dev/null
+++ b/src/main/java/SimpleObfuscator.java
@@ -0,0 +1,107 @@
+
+import java.nio.ByteBuffer;
+import java.nio.charset.Charset;
+
+
+public class SimpleObfuscator {
+ private final byte[] key;
+ public static final byte[] OBFUSCATE_SALT = {-79, -62, 15, -19, -48, -45, -36, 8, 0, -28, -72, 35, 14, -126, 49, -97};
+ public static final byte[] ENCRYPT_SALT = {-78, 117, 95, 10, -79, 93, 115, 51, -5, -46, 75, -32, 47, -90, 39, 39};
+
+ public SimpleObfuscator(byte[] key) {
+ this.key = key;
+ }
+
+
+ public byte[] unobfuscate(byte[] s) {
+ return xorByte(s);
+ }
+
+ public byte[] obfuscate(byte[] s) {
+ return xorByte(s);
+ }
+
+ private byte[] xorByte(byte[] message) {
+ try {
+ if (message == null || key == null)
+ return null;
+
+ int ml = message.length;
+ int kl = key.length;
+
+ ByteBuffer byteBuf = ByteBuffer.allocate(ml);
+ byteBuf.clear();
+
+ for (int i = 0; i < ml; i++) {
+ byteBuf.put((byte) (message[i] ^ key[i % kl]));
+ }// for i
+ byteBuf.flip();
+ return byteBuf.array();
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+ public static void main(String[] args) {
+
+ Obfuscator soe = new Obfuscator(OBFUSCATE_SALT, ENCRYPT_SALT);
+
+
+ StringBuffer log = new StringBuffer();
+
+ Charset characterSet = Charset.forName("US-ASCII");
+
+ //sslpins
+
+// String[] keys={
+// "sha256/SlNzY+e3VjHNRXeCxFsG74HzSkjeZ3jbqoSYCD+nBcE=",
+// "sha256/klO23nT2ehFDXCfx3eHTDRESMz3asj1muO+4aIdjiuY=",
+// "sha256/grX4Ta9HpZx6tSHkmCrvpApTQGo67CYDnvprLg5yRME="
+// };
+ //dbkeys
+ byte[][] keys = {
+ {-45, 38, 70, -101, -53, 80, 47, -11, -103, 19, 60, 72, 95, -86, 105, 121, -68, 58, 106, -100, -72, 56, -44, -43, 35, 100, -35, 40, 125, -93, 58, -120, 96, -56, 50, -18, -113, -50, 62, 27, -76, -36, -99, 36, 112, 62, -6, -39, 117, -56, -74, 68, 82, 35, -50, -109, -66, 11, 69, 124, 11, -36, -9, -1},
+ {-11,-95,82,80,114,-61,-119,-35,-87,38,34,79,-110,5,57,-93,-40,-83,46,53,-56,-86,-14,-114,52,95,67,5,-30,-91,-40,43,-88,-5,-74,11,38,-84,-33,89,-60,64,35,1,23,66,102,54,16,-116,59,51,127,55,20,-103,109,-52,-51,106,77,83,114,-118},
+ {-7,-12,-21,-123,-88,-7,115,-14,-81,102,-59,101,-108,-55,18,-101,-54,73,57,-1,116,17,-26,-2,61,-75,18,-47,55,64,-13,25,112,113,32,80,-23,119,84,24,9,25,-82,-115,61,35,117,-20,-2,-83,108,25,31,45,22,-29,-122,-33,44,11,-121,85,52,-4}
+ };
+ for (int i = 0; i < keys.length; i++) {
+// String sourceStr = keys[i];
+
+ byte[] selT = keys[i];//sourceStr.getBytes(characterSet);
+
+// String output = new String(selT, 0, selT.length, characterSet);
+//
+// log.append(sourceStr);
+// if (sourceStr.equals(output)) {
+// log.append(" EQ\t");
+// } else {
+// log.append(" NG\t");
+// }
+// log.append('\t');
+
+
+ byte[] out = soe.obfuscate(selT);
+ log.append(" {");
+ for (int j = 0; j < out.length; j++) {
+ log.append(String.valueOf(out[j]) + ",");
+ }
+ log.append(" }");
+
+ log.append('\t');
+
+ byte[] reout = soe.unobfuscate(out);
+
+
+ String outputRe = new String(reout, 0, reout.length, characterSet);
+// if (!sourceStr.equals(outputRe)) {
+// log.append(" NG\t");
+// }
+
+ log.append('\n');
+
+ }
+ System.out.println(log.toString());
+
+ }
+}