@Test
public void testSHA1() {
eq(Crypto.sha1("abc"), "a9993e364706816aba3e25717850c26c9cd0d89d");
eq(Crypto.sha1("x"), "11f6ad8ec52a2984abaafd7c3b516503785c2072");
eq(Crypto.sha1(" "), "b858cb282617fb0956d960215c8e84d1ccf909c6");
eq(Crypto.sha1(""), "da39a3ee5e6b4b0d3255bfef95601890afd80709");
}
@Test
public void testMD5() {
eq(Crypto.md5("abc"), "900150983cd24fb0d6963f7d28e17f72");
eq(Crypto.md5("x"), "9dd4e461268c8034f5c8564e155c67a6");
eq(Crypto.md5(" "), "7215ee9c7d9dc229d2921a40e899ec5f");
eq(Crypto.md5(""), "d41d8cd98f00b204e9800998ecf8427e");
}
@Test
public void testEncrypt() {
for (int i = 0; i < 10000; i++) {
String msg1 = U.copyNtimes("x", i);
byte[] enc = Crypto.encrypt(msg1.getBytes());
byte[] dec = Crypto.decrypt(enc);
String msg2 = new String(dec);
eq(msg2, msg1);
}
}
@Test
public void testSecret() {
notNull(Crypto.secret());
isTrue(Crypto.secret() == Crypto.secret());
// default secret in dev mode is an empty string
eq(Crypto.secret(), "");
Conf.args("secret=mysecret");
eq(Crypto.secret(), "mysecret");
}
@Override
public void execute() throws IOException {
BufferedInputStream urlIn = new BufferedInputStream(new URL(url).openStream());
File file = new File(filename);
if ("".equals(aesKeyBase64)) {
crypto.copyToFileClosing(urlIn, file);
} else {
crypto.decodeToFileClosing(aesKeyBase64, urlIn, file);
}
syserr("downloaded " + url + " to " + file);
}
@Test
public void testSHA512() {
eq(
Crypto.sha512("abc"),
"ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f");
eq(
Crypto.sha512("x"),
"a4abd4448c49562d828115d13a1fccea927f52b4d5459297f8b43e42da89238bc13626e43dcb38ddb082488927ec904fb42057443983e88585179d50551afe62");
eq(
Crypto.sha512(" "),
"f90ddd77e400dfe6a3fcf479b00b1ee29e7015c5bb8cd70f5f15b4886cc339275ff553fc8a053f8ddc7324f45168cffaf81f8c3ac93996f6536eef38e5e40768");
eq(
Crypto.sha512(""),
"cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e");
}
/** Send session key to Bryan. */
public void sendSessionKey() {
SealedObject object = crypto.getSessionKey();
try {
this.toBryan.writeObject(object);
} catch (IOException e) {
System.out.println("Error: cannot send to Bryan.");
}
}
@Override
public void execute() throws IOException {
File plainFile = new File(filename);
File encodedFile = new File(filename2);
crypto.encodeFile(aesKeyBase64, plainFile, encodedFile);
syserr("encoded " + plainFile + " to " + encodedFile);
}
public void setMacName(String macName) {
this.macName = macName;
try {
this.mac = Mac.getInstance(this.macName, Crypto.getCryptoProvider());
} catch (GeneralSecurityException e) {
throw new IllegalArgumentException(e);
}
}
/** Wraps the input stream if it needs to be decrypted. */
InputStream decrypt(InputStream in) throws IOException {
if (mCrypto != null) {
try {
in = mCrypto.newDecryptingStream(0, in);
} catch (GeneralSecurityException e) {
throw new DatabaseException(e);
}
}
return in;
}
/** Wraps the output stream if it needs to be encrypted. */
OutputStream encrypt(OutputStream out) throws IOException {
if (mCrypto != null) {
try {
out = mCrypto.newEncryptingStream(0, out);
} catch (GeneralSecurityException e) {
throw new DatabaseException(e);
}
}
return out;
}
private String encrypt(String post) throws Exception {
String code = "" + System.currentTimeMillis() + (new Random().nextInt(260000));
String md5content = post + HSKEY_2 + code;
String md5String = MD5.hexdigest(md5content);
String hs = md5String.substring(0, 16);
String key = hs + AUTHKEY_2;
String aescontent = md5String.substring(16);
String es = Crypto.encrypt(key, aescontent);
String pj = "&token=" + es + "&code=" + code;
return pj;
}
/*
* creates a new packet valid for authentication an SIP request
* @param answer answer from server
* @in: sendData - last send data
* @out: new string
*/
private String handleAuthentication(String answer, String sendData) {
Crypto myCrypto = new Crypto(m_verbose);
// increase cseq by one
sendData = setCSeq(sendData, m_cseq + 1);
String response =
myCrypto.createResponse(
m_userName,
m_password,
getAlg(answer),
getRealm(answer),
getNonce(answer),
getSipMode(sendData.toUpperCase()),
getOpaque(answer),
"sip:tel.t-online.de");
// TODO generic fix for authentication fix
// insert reponse before "Content-Length"
return insertText(sendData, response, "Content-Length");
} // handleRegisterAuthentication
/**
* If the device has not previously generated and persisted its device ID (aka public/private
* keypair for PSI), generates and stores said ID.
*
* <p>If the ID is already stored, this harmlessly does nothing.
*/
private void generateAndStoreDeviceID(Context context, int encryption) {
if (store == null) store = new StorageBase(context, encryption);
String privateDeviceID = store.get(DEVICE_PRIVATE_ID_KEY);
String publicDeviceID = store.get(DEVICE_PUBLIC_ID_KEY);
if (privateDeviceID == null || publicDeviceID == null) {
// This would be very strange, if only half the ID was stored.
if (privateDeviceID != publicDeviceID) {
if (privateDeviceID == null) {
log.error(
"Only one of private and public ID are stored! Public is stored, private is null.");
} else {
log.error(
"Only one of private and public ID are stored! Private is stored, public is null.");
}
}
AsymmetricCipherKeyPair keypair = Crypto.generateUserID();
privateDeviceID = bytesToBase64(Crypto.generatePrivateID(keypair));
publicDeviceID = bytesToBase64(Crypto.generatePublicID(keypair));
store.put(DEVICE_PRIVATE_ID_KEY, privateDeviceID);
store.put(DEVICE_PUBLIC_ID_KEY, publicDeviceID);
}
}
public static void main(String[] args) {
Options options = KeyGenCLI.buildOptions();
HelpFormatter helpFormatter = new HelpFormatter();
CommandLineParser parser = new GnuParser();
try {
CommandLine commandLine = parser.parse(options, args);
String service = commandLine.getOptionValue("service");
String key = Crypto.generateAes128KeyWithSeed(service);
if (key == null) {
throw new Exception("Key was not generated!");
}
JSONObject keyObject = new JSONObject();
keyObject.put("name", service);
keyObject.put("data", key);
System.out.println(String.format("Key: `%s`\n", key));
System.out.println("Key object:");
System.out.println(keyObject.toString());
} catch (MissingOptionException e) {
System.out.println("Missing required option(s)!");
helpFormatter.printHelp(
"\nKeyGenCLI",
"This tool generates a unique key and prints the result.",
options,
"",
true);
} catch (UnrecognizedOptionException e) {
System.out.println("Unrecognized option!");
helpFormatter.printHelp(
"\nKeyGenCLI",
"This tool generates a unique key and prints the result.",
options,
"",
true);
} catch (ParseException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public void setCipherAlgorithmNameModePadding(String cipherAlgorithmNameModePadding) {
String cipherAlgorithmExpected, cipherAlgorithmReceived;
cipherAlgorithmExpected = this.getCipherAlgorithm();
cipherAlgorithmReceived = CryptoUtil.getCipherNameAsString(cipherAlgorithmNameModePadding);
if (!cipherAlgorithmExpected.equals(cipherAlgorithmReceived)) {
throw new IllegalArgumentException("algorithm must be " + cipherAlgorithmExpected);
}
this.cipherAlgorithmNameModePadding = cipherAlgorithmNameModePadding;
try {
this.cipher =
Cipher.getInstance(this.cipherAlgorithmNameModePadding, Crypto.getCryptoProvider());
} catch (GeneralSecurityException e) {
logException(getClass(), e);
throw new IllegalArgumentException(e);
}
}
/** Receive messages one by one from Bryan, decrypt and write to file */
public void receiveMessages() {
try {
PrintWriter writer = new PrintWriter(new FileWriter(MESSAGE_FILE));
for (int i = 0; i < 10; i++) {
SealedObject object = (SealedObject) this.fromBryan.readObject();
String msg = crypto.decryptMsg(object);
writer.write(msg);
writer.write("\n");
}
writer.close();
} catch (ClassNotFoundException e) {
System.out.println("Error: cannot typecast to class SealedObject.");
System.exit(1);
} catch (IOException e) {
System.out.println("Error: cannot receive messages from Bryan.");
System.exit(1);
}
}
/** Receive public key from Bryan */
public void receivePublicKey() {
try {
PublicKey pubKey = (PublicKey) this.fromBryan.readObject();
byte[] digest = (byte[]) this.fromBryan.readObject();
boolean isVerified = crypto.verifyBryanPubKey(pubKey, digest);
if (!isVerified) {
System.out.println("Error:MD5 signature does not match");
System.exit(1);
}
} catch (ClassNotFoundException e) {
System.out.println("Error: cannot typecast to class PublicKey or byte[].");
System.exit(1);
} catch (IOException e) {
System.out.println("Error: cannot varify bryan's key.");
System.exit(1);
}
}
@Test
public void testDigest() {
notNull(Crypto.digest("MD5"));
notNull(Crypto.digest("SHA-1"));
notNull(Crypto.digest("SHA-512"));
}
public static boolean backUp(Context context, backUpCall back) {
int process = 0;
// 判断当前sd卡的状态
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
Log.v("Daniel", "有sd卡");
ContentResolver resolver = context.getContentResolver();
// 拿到获取短信的uri
Uri uri = Uri.parse("content://sms/");
/*
* type=1，表示接受的短信 type=2，表示发送的短信
*/
Cursor cursor =
resolver.query(uri, new String[] {"address", "date", "type", "body"}, null, null, null);
int count = cursor.getCount();
back.before(count);
XmlSerializer serializer = Xml.newSerializer();
// 在sd卡创建backup.xml的文件
File file = new File(Environment.getExternalStorageDirectory(), "backup.xml");
Log.v("Daniel", "创建好了文件");
try {
FileOutputStream os = new FileOutputStream(file);
// serilizer的输出位置就是os
serializer.setOutput(os, "UTF-8");
// 设置编码格式，以及独立存在
serializer.startDocument("utf-8", true);
// 开始节点为“smss”
serializer.startTag(null, "smss");
// 开始节点为address
while (cursor.moveToNext()) {
serializer.startTag(null, "address");
serializer.text(cursor.getString(0));
serializer.endTag(null, "address");
// 开始节点为data
serializer.startTag(null, "data");
serializer.text(cursor.getString(1));
serializer.endTag(null, "data");
// 开始节点为type
serializer.startTag(null, "type");
serializer.text(cursor.getString(2));
serializer.endTag(null, "type");
// 开始节点为body
serializer.startTag(null, "body");
serializer.text(Crypto.encrypt("231617", cursor.getString(3)));
serializer.endTag(null, "body");
SystemClock.sleep(1000);
process++;
back.onBackUp(process);
}
serializer.endTag(null, "smss");
serializer.endDocument();
cursor.close();
os.flush();
os.close();
return true;
} catch (Exception e) {
// TODO Auto-generated catch block
}
}
return false;
}
@Override
public void onClick(View view) {
Utils.Log("Send clicked");
// If the message field is not empty
if (!messageText.getText().toString().isEmpty()) {
final Message message = new Message();
message.setSender(username);
message.setRecipient(conversation.getUsername());
// If DHKE was completed and a key exists
if (!dbManager.getAESKey(conversation.getUsername()).isEmpty()) {
String signature = "";
String key = dbManager.getAESKey(conversation.getUsername());
byte[] iv = Crypto.GenerateRandomIV();
final String plainText = messageText.getText().toString();
final String cipherText = Crypto.AESencrypt(key, plainText, iv);
final String base64IV = Base64.encodeToString(iv, Base64.NO_WRAP);
try {
PrivateKey RSAKeySign =
Crypto.RSAStringToPrivateKey(dbManager.getRSAKeySignaturePrivate());
signature =
Base64.encodeToString(
Crypto.RSASign(Base64.decode(cipherText, Base64.NO_WRAP), RSAKeySign),
Base64.NO_WRAP);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (InvalidKeySpecException e) {
e.printStackTrace();
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (InvalidKeyException e) {
e.printStackTrace();
} catch (SignatureException e) {
e.printStackTrace();
}
message.setMessage(cipherText);
message.setIv(base64IV);
message.setSignature(signature);
new HttpHandler() {
@Override
public HttpUriRequest getHttpRequestMethod() {
HttpPost httpPost = new HttpPost(Utils.SERVER_SEND_MESSAGE);
List<NameValuePair> nameValuePairs = new ArrayList<>();
nameValuePairs.add(new BasicNameValuePair("sender", message.getSender()));
nameValuePairs.add(new BasicNameValuePair("recipient", message.getRecipient()));
nameValuePairs.add(new BasicNameValuePair("message", message.getMessage()));
nameValuePairs.add(new BasicNameValuePair("iv", message.getIv()));
nameValuePairs.add(new BasicNameValuePair("signature", message.getSignature()));
try {
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return httpPost;
}
@Override
public void onResponse(String result) {
Utils.Log("HttpResult: " + result);
if (conversation.isEncrypted().equals("true")) {
message.setMessage(
Crypto.AESencrypt(
conversationPass,
plainText,
Base64.decode(message.getIv(), Base64.NO_WRAP)));
message.setEncrypted(true);
dbManager.addMessage(message);
message.setEncrypted(false);
message.setMessage(plainText);
messages.add(message);
adapter.notifyDataSetChanged();
} else {
message.setMessage(plainText);
message.setEncrypted(false);
dbManager.addMessage(message);
messages.add(message);
adapter.notifyDataSetChanged();
}
messageList.setSelection(messages.size() + 1);
}
}.execute();
messageText.setText("");
}
// DHKE was not complete yet, store messages unencrypted temporarily
// and then encrypt and send them once the exchange is complete
else {
message.setEncrypted(false);
message.setMessage(messageText.getText().toString());
message.setIv(Base64.encodeToString(Crypto.GenerateRandomIV(), Base64.NO_WRAP));
dbManager.addMessage(message);
messages.add(message);
adapter.notifyDataSetChanged();
messageList.setSelection(adapter.getCount() - 1);
messageText.setText("");
}
}
}