mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-24 16:57:50 +00:00
parent
b7badec752
commit
0b62cf372b
@ -25,11 +25,11 @@ package org.thoughtcrime.securesms.contacts;
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public class NameAndNumber {
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public String name;
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public String number;
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public NameAndNumber(String name, String number) {
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this.name = name;
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this.number = number;
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}
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public NameAndNumber() {}
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}
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@ -60,7 +60,7 @@ public class AsymmetricMasterCipher {
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public AsymmetricMasterCipher(AsymmetricMasterSecret asymmetricMasterSecret) {
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this.asymmetricMasterSecret = asymmetricMasterSecret;
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}
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public String decryptBody(String body) throws IOException, InvalidMessageException {
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try {
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byte[] combined = Base64.decode(body);
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@ -77,7 +77,7 @@ public class AsymmetricMasterCipher {
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throw new InvalidMessageException(ike);
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}
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}
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public String encryptBody(String body) {
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try {
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ECPublicKey theirPublic = asymmetricMasterSecret.getDjbPublicKey();
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@ -95,31 +95,31 @@ public class AsymmetricMasterCipher {
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throw new AssertionError(e);
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}
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}
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private MasterCipher getMasterCipherForSecret(byte[] secretBytes) {
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SecretKeySpec cipherKey = deriveCipherKey(secretBytes);
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SecretKeySpec macKey = deriveMacKey(secretBytes);
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MasterSecret masterSecret = new MasterSecret(cipherKey, macKey);
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return new MasterCipher(masterSecret);
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return new MasterCipher(masterSecret);
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}
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private SecretKeySpec deriveMacKey(byte[] secretBytes) {
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byte[] digestedBytes = getDigestedBytes(secretBytes, 1);
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byte[] macKeyBytes = new byte[20];
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System.arraycopy(digestedBytes, 0, macKeyBytes, 0, macKeyBytes.length);
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return new SecretKeySpec(macKeyBytes, "HmacSHA1");
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}
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private SecretKeySpec deriveCipherKey(byte[] secretBytes) {
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byte[] digestedBytes = getDigestedBytes(secretBytes, 0);
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byte[] cipherKeyBytes = new byte[16];
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System.arraycopy(digestedBytes, 0, cipherKeyBytes, 0, cipherKeyBytes.length);
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System.arraycopy(digestedBytes, 0, cipherKeyBytes, 0, cipherKeyBytes.length);
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return new SecretKeySpec(cipherKeyBytes, "AES");
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}
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private byte[] getDigestedBytes(byte[] secretBytes, int iteration) {
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try {
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Mac mac = Mac.getInstance("HmacSHA256");
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@ -44,24 +44,24 @@ import android.util.Log;
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*/
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public class DecryptingPartInputStream extends FileInputStream {
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private static final int IV_LENGTH = 16;
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private static final int MAC_LENGTH = 20;
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private Cipher cipher;
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private Mac mac;
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private boolean done;
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private long totalDataSize;
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private long totalRead;
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private byte[] overflowBuffer;
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public DecryptingPartInputStream(File file, MasterSecret masterSecret) throws FileNotFoundException {
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super(file);
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try {
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if (file.length() <= IV_LENGTH + MAC_LENGTH)
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throw new FileNotFoundException("Part shorter than crypto overhead!");
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done = false;
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mac = initializeMac(masterSecret.getMacKey());
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cipher = initializeCipher(masterSecret.getEncryptionKey());
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@ -81,12 +81,12 @@ public class DecryptingPartInputStream extends FileInputStream {
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throw new FileNotFoundException("IOException while reading IV!");
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}
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}
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@Override
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public int read(byte[] buffer) throws IOException {
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return read(buffer, 0, buffer.length);
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}
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@Override
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public int read(byte[] buffer, int offset, int length) throws IOException {
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if (totalRead != totalDataSize)
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@ -96,11 +96,11 @@ public class DecryptingPartInputStream extends FileInputStream {
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else
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return -1;
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}
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private int readFinal(byte[] buffer, int offset, int length) throws IOException {
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try {
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try {
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int flourish = cipher.doFinal(buffer, offset);
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// mac.update(buffer, offset, flourish);
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//mac.update(buffer, offset, flourish);
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byte[] ourMac = mac.doFinal();
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byte[] theirMac = new byte[mac.getMacLength()];
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@ -108,7 +108,7 @@ public class DecryptingPartInputStream extends FileInputStream {
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if (!Arrays.equals(ourMac, theirMac))
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throw new IOException("MAC doesn't match! Potential tampering?");
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done = true;
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return flourish;
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} catch (IllegalBlockSizeException e) {
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@ -122,7 +122,7 @@ public class DecryptingPartInputStream extends FileInputStream {
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throw new IOException("Bad padding exception!");
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}
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}
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private int readIncremental(byte[] buffer, int offset, int length) throws IOException {
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int readLength = 0;
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if (null != overflowBuffer) {
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@ -145,11 +145,11 @@ public class DecryptingPartInputStream extends FileInputStream {
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if (length + totalRead > totalDataSize)
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length = (int)(totalDataSize - totalRead);
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byte[] internalBuffer = new byte[length];
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int read = super.read(internalBuffer, 0, internalBuffer.length <= cipher.getBlockSize() ? internalBuffer.length : internalBuffer.length - cipher.getBlockSize());
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totalRead += read;
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try {
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mac.update(internalBuffer, 0, read);
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@ -175,41 +175,41 @@ public class DecryptingPartInputStream extends FileInputStream {
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throw new AssertionError(e);
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}
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}
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private Mac initializeMac(SecretKeySpec key) throws NoSuchAlgorithmException, InvalidKeyException {
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Mac hmac = Mac.getInstance("HmacSHA1");
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hmac.init(key);
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return hmac;
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}
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private Cipher initializeCipher(SecretKeySpec key)
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throws InvalidKeyException, InvalidAlgorithmParameterException,
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NoSuchAlgorithmException, NoSuchPaddingException, IOException
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NoSuchAlgorithmException, NoSuchPaddingException, IOException
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{
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Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
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IvParameterSpec iv = readIv(cipher.getBlockSize());
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cipher.init(Cipher.DECRYPT_MODE, key, iv);
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return cipher;
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}
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private IvParameterSpec readIv(int size) throws IOException {
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byte[] iv = new byte[size];
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readFully(iv);
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mac.update(iv);
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return new IvParameterSpec(iv);
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}
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private void readFully(byte[] buffer) throws IOException {
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int offset = 0;
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for (;;) {
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int read = super.read(buffer, offset, buffer.length-offset);
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if (read + offset < buffer.length) offset += read;
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else return;
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}
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else return;
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}
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}
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}
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@ -43,7 +43,7 @@ public class EncryptingPartOutputStream extends FileOutputStream {
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private Cipher cipher;
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private Mac mac;
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private boolean closed;
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public EncryptingPartOutputStream(File file, MasterSecret masterSecret) throws FileNotFoundException {
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super(file);
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@ -62,37 +62,37 @@ public class EncryptingPartOutputStream extends FileOutputStream {
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throw new AssertionError(e);
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}
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}
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@Override
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public void write(byte[] buffer) throws IOException {
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this.write(buffer, 0, buffer.length);
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}
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@Override
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public void write(byte[] buffer, int offset, int length) throws IOException {
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byte[] encryptedBuffer = cipher.update(buffer, offset, length);
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if (encryptedBuffer != null) {
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mac.update(encryptedBuffer);
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super.write(encryptedBuffer, 0, encryptedBuffer.length);
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}
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}
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@Override
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public void close() throws IOException {
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try {
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if (!closed) {
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byte[] encryptedRemainder = cipher.doFinal();
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mac.update(encryptedRemainder);
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byte[] macBytes = mac.doFinal();
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super.write(encryptedRemainder, 0, encryptedRemainder.length);
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super.write(macBytes, 0, macBytes.length);
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super.write(macBytes, 0, macBytes.length);
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closed = true;
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}
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super.close();
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} catch (BadPaddingException bpe) {
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throw new AssertionError(bpe);
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@ -100,22 +100,22 @@ public class EncryptingPartOutputStream extends FileOutputStream {
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throw new AssertionError(e);
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}
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}
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private Mac initializeMac(SecretKeySpec key) throws NoSuchAlgorithmException, InvalidKeyException {
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Mac hmac = Mac.getInstance("HmacSHA1");
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hmac.init(key);
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return hmac;
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}
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private Cipher initializeCipher(Mac mac, SecretKeySpec key) throws IOException, InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException {
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Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
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cipher.init(Cipher.ENCRYPT_MODE, key);
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byte[] ivBytes = cipher.getIV();
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byte[] ivBytes = cipher.getIV();
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mac.update(ivBytes);
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super.write(ivBytes, 0, ivBytes.length);
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return cipher;
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}
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@ -42,7 +42,7 @@ public class IdentityKeyUtil {
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private static final String IDENTITY_PUBLIC_KEY_DJB_PREF = "pref_identity_public_curve25519";
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private static final String IDENTITY_PRIVATE_KEY_DJB_PREF = "pref_identity_private_curve25519";
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public static boolean hasIdentityKey(Context context) {
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SharedPreferences preferences = context.getSharedPreferences(MasterSecretUtil.PREFERENCES_NAME, 0);
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@ -50,10 +50,10 @@ public class IdentityKeyUtil {
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preferences.contains(IDENTITY_PUBLIC_KEY_DJB_PREF) &&
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preferences.contains(IDENTITY_PRIVATE_KEY_DJB_PREF);
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}
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public static IdentityKey getIdentityKey(Context context) {
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if (!hasIdentityKey(context)) return null;
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try {
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byte[] publicKeyBytes = Base64.decode(retrieve(context, IDENTITY_PUBLIC_KEY_DJB_PREF));
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return new IdentityKey(publicKeyBytes, 0);
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@ -114,11 +114,11 @@ public class IdentityKeyUtil {
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SharedPreferences preferences = context.getSharedPreferences(MasterSecretUtil.PREFERENCES_NAME, 0);
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return preferences.getString(key, null);
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}
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public static void save(Context context, String key, String value) {
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SharedPreferences preferences = context.getSharedPreferences(MasterSecretUtil.PREFERENCES_NAME, 0);
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Editor preferencesEditor = preferences.edit();
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preferencesEditor.putString(key, value);
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if (!preferencesEditor.commit()) throw new AssertionError("failed to save identity key/value to shared preferences");
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}
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@ -41,12 +41,12 @@ public class AudioSlide extends Slide {
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public AudioSlide(Context context, Uri uri) throws IOException, MediaTooLargeException {
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super(context, constructPartFromUri(context, uri));
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}
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@Override
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public boolean hasImage() {
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return true;
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}
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@Override
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public boolean hasAudio() {
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return true;
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@ -69,15 +69,15 @@ public class AudioSlide extends Slide {
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public static PduPart constructPartFromUri(Context context, Uri uri) throws IOException, MediaTooLargeException {
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PduPart part = new PduPart();
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if (getMediaSize(context, uri) > MAX_MESSAGE_SIZE)
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throw new MediaTooLargeException("Audio track larger than size maximum.");
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Cursor cursor = null;
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try {
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cursor = context.getContentResolver().query(uri, new String[]{Audio.Media.MIME_TYPE}, null, null, null);
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if (cursor != null && cursor.moveToFirst())
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part.setContentType(cursor.getString(0).getBytes());
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else
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@ -90,7 +90,7 @@ public class AudioSlide extends Slide {
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part.setDataUri(uri);
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part.setContentId((System.currentTimeMillis()+"").getBytes());
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part.setName(("Audio" + System.currentTimeMillis()).getBytes());
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return part;
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}
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}
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@ -64,7 +64,7 @@ public class SlideDeck {
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public void clear() {
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slides.clear();
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}
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public PduBody toPduBody() {
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PduBody body = new PduBody();
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@ -87,7 +87,7 @@ public class SlideDeck {
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public void addSlide(Slide slide) {
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slides.add(slide);
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}
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public List<Slide> getSlides() {
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return slides;
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}
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@ -101,5 +101,5 @@ public class SlideDeck {
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return false;
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}
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}
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@ -37,7 +37,7 @@ import ws.com.google.android.mms.pdu.CharacterSets;
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import ws.com.google.android.mms.pdu.PduPart;
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public class TextSlide extends Slide {
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private static final int MAX_CACHE_SIZE = 10;
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private static final Map<Uri, SoftReference<String>> textCache =
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Collections.synchronizedMap(new LRUCache<Uri, SoftReference<String>>(MAX_CACHE_SIZE));
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@ -54,7 +54,7 @@ public class TextSlide extends Slide {
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public boolean hasText() {
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return true;
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}
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@Override
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public String getText() {
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try {
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@ -69,9 +69,9 @@ public class TextSlide extends Slide {
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}
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String text = new String(getPartData(), CharacterSets.getMimeName(part.getCharset()));
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String text = new String(getPartData(), CharacterSets.getMimeName(part.getCharset()));
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textCache.put(part.getDataUri(), new SoftReference<String>(text));
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return text;
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} catch (UnsupportedEncodingException uee) {
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Log.w("TextSlide", uee);
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@ -79,7 +79,7 @@ public class VideoSlide extends Slide {
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PduPart part = new PduPart();
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ContentResolver resolver = context.getContentResolver();
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Cursor cursor = null;
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try {
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cursor = resolver.query(uri, new String[] {MediaStore.Video.Media.MIME_TYPE}, null, null, null);
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if (cursor != null && cursor.moveToFirst()) {
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@ -90,14 +90,14 @@ public class VideoSlide extends Slide {
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if (cursor != null)
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cursor.close();
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}
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if (getMediaSize(context, uri) > MAX_MESSAGE_SIZE)
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throw new MediaTooLargeException("Video exceeds maximum message size.");
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part.setDataUri(uri);
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part.setContentId((System.currentTimeMillis()+"").getBytes());
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part.setName(("Video" + System.currentTimeMillis()).getBytes());
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return part;
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}
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}
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@ -1,4 +1,4 @@
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/**
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/**
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* Copyright (C) 2011 Whisper Systems
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* Copyright (C) 2014 Open Whisper Systems
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*
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@ -26,7 +26,7 @@ import org.whispersystems.libaxolotl.protocol.CiphertextMessage;
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import java.io.IOException;
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public class SmsTransportDetails {
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public static final int SMS_SIZE = 160;
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public static final int MULTIPART_SMS_SIZE = 153;
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@ -37,7 +37,7 @@ public class MemoryCleaner {
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public static void clean(MasterSecret masterSecret) {
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// if (masterSecret == null)
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// return;
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//
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//
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// try {
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// SecretKeySpec cipherKey = masterSecret.getEncryptionKey();
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// SecretKeySpec macKey = masterSecret.getMacKey();
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Reference in New Issue
Block a user