List of usage examples for org.bouncycastle.crypto Mac update
public void update(byte[] in, int inOff, int len) throws DataLengthException, IllegalStateException;
From source file:com.github.capone.protocol.crypto.SymmetricKey.java
License:Open Source License
public byte[] encrypt(Nonce nonce, byte[] message) throws EncryptionException { try {//from w w w.ja v a2 s .co m byte[] subkey = new byte[SUBKEYBYTES]; byte[] encrypted = new byte[message.length + MACBYTES]; StreamCipher cipher = new XSalsa20Engine(); cipher.init(true, new ParametersWithIV(key, nonce.nonce)); cipher.processBytes(subkey, 0, subkey.length, subkey, 0); cipher.processBytes(message, 0, message.length, encrypted, MACBYTES); Mac auth = new Poly1305(); auth.init(new KeyParameter(subkey)); auth.update(encrypted, MACBYTES, message.length); auth.doFinal(encrypted, 0); return encrypted; } catch (Exception e) { throw new EncryptionException(); } }
From source file:com.github.capone.protocol.crypto.SymmetricKey.java
License:Open Source License
public byte[] decrypt(Nonce nonce, byte[] encrypted) throws DecryptionException { byte[] subkey = new byte[SUBKEYBYTES]; byte[] mac = new byte[MACBYTES]; byte[] plain = new byte[encrypted.length - MACBYTES]; if (encrypted.length < MACBYTES) { throw new DecryptionException(); }/*from w ww . j a va 2 s . com*/ StreamCipher cipher = new XSalsa20Engine(); cipher.init(true, new ParametersWithIV(key, nonce.nonce)); cipher.processBytes(subkey, 0, subkey.length, subkey, 0); Mac auth = new Poly1305(); auth.init(new KeyParameter(subkey)); auth.update(encrypted, MACBYTES, encrypted.length - MACBYTES); auth.doFinal(mac, 0); boolean validMac = true; for (int i = 0; i < MACBYTES; i++) { validMac &= mac[i] == encrypted[i]; } if (!validMac) { throw new DecryptionException(); } cipher.processBytes(encrypted, MACBYTES, encrypted.length - MACBYTES, plain, 0); return plain; }
From source file:com.github.jinahya.rfc5849.OAuthSignatureHmacSha1Bc.java
License:Apache License
@Override byte[] get(final byte[] keyBytes, final byte[] baseBytes) throws Exception { final Mac mac = new HMac(new SHA1Digest()); mac.init(new KeyParameter(keyBytes)); mac.update(baseBytes, 0, baseBytes.length); final byte[] output = new byte[mac.getMacSize()]; mac.doFinal(output, 0);// w w w . j a va2 s. com return output; }
From source file:com.google.authenticator.blackberry.PasscodeGenerator.java
License:Apache License
/** * @param mac A {@link Mac} used to generate passcodes * @param passCodeLength The length of the decimal passcode * @param interval The interval that a passcode is valid for *//*from ww w .j a va 2s. co m*/ public PasscodeGenerator(final Mac mac, int passCodeLength, int interval) { this(new Signer() { public byte[] sign(byte[] data) { mac.reset(); mac.update(data, 0, data.length); int length = mac.getMacSize(); byte[] out = new byte[length]; mac.doFinal(out, 0); mac.reset(); return out; } }, passCodeLength, interval); }
From source file:de.tsenger.animamea.crypto.AmAESCrypto.java
License:Open Source License
@Override public byte[] getMAC(byte[] data) { byte[] n = new byte[sscBytes.length + data.length]; System.arraycopy(sscBytes, 0, n, 0, sscBytes.length); System.arraycopy(data, 0, n, sscBytes.length, data.length); n = addPadding(n);/*from w w w . ja v a2s. co m*/ BlockCipher cipher = new AESFastEngine(); Mac mac = new CMac(cipher, 64); mac.init(keyP); mac.update(n, 0, n.length); byte[] out = new byte[mac.getMacSize()]; mac.doFinal(out, 0); return out; }
From source file:de.tsenger.animamea.crypto.AmAESCrypto.java
License:Open Source License
@Override public byte[] getMAC(byte[] key, byte[] data) { BlockCipher cipher = new AESFastEngine(); Mac mac = new CMac(cipher, 64); // TODO Padding der Daten KeyParameter keyP = new KeyParameter(key); mac.init(keyP);/*w w w. ja v a 2 s.com*/ mac.update(data, 0, data.length); byte[] out = new byte[8]; mac.doFinal(out, 0); return out; }
From source file:de.tsenger.animamea.crypto.AmDESCrypto.java
License:Open Source License
@Override public byte[] getMAC(byte[] data) { byte[] n = new byte[8 + data.length]; System.arraycopy(sscBytes, 0, n, 0, 8); System.arraycopy(data, 0, n, 8, data.length); BlockCipher cipher = new DESEngine(); Mac mac = new ISO9797Alg3Mac(cipher, 64, new ISO7816d4Padding()); ParametersWithIV parameterIV = new ParametersWithIV(keyP, IV); mac.init(parameterIV);/*from www. j av a 2s. co m*/ mac.update(n, 0, n.length); byte[] out = new byte[8]; mac.doFinal(out, 0); return out; }
From source file:de.tsenger.animamea.crypto.AmDESCrypto.java
License:Open Source License
@Override public byte[] getMAC(byte[] key, byte[] data) { BlockCipher cipher = new DESEngine(); Mac mac = new ISO9797Alg3Mac(cipher, 64, new ISO7816d4Padding()); KeyParameter keyP = new KeyParameter(key); mac.init(keyP);//w ww . j a va2 s .co m mac.update(data, 0, data.length); byte[] out = new byte[8]; mac.doFinal(out, 0); return out; }
From source file:org.cryptomator.crypto.aes256.AesSivCipherUtil.java
License:Open Source License
private static byte[] mac(Mac mac, byte[] in) { byte[] result = new byte[mac.getMacSize()]; mac.update(in, 0, in.length); mac.doFinal(result, 0);/*from w ww. j ava 2 s . com*/ return result; }
From source file:org.jitsi.impl.neomedia.transform.srtp.CryptoBenchmark.java
License:LGPL
public static void main(String[] args) throws Exception { boolean benchmarkJavaxCryptoCipher = false; boolean benchmarkNIOBlockCipher = false; for (String arg : args) { if ("-javax-crypto-cipher".equalsIgnoreCase(arg)) benchmarkJavaxCryptoCipher = true; else if ("-nio-block-cipher".equalsIgnoreCase(arg)) benchmarkNIOBlockCipher = true; }/*w w w . j a v a2 s . c om*/ Provider sunPKCS11 = new sun.security.pkcs11.SunPKCS11( "--name=CryptoBenchmark\\n" + "nssDbMode=noDb\\n" + "attributes=compatibility"); Provider sunJCE = Security.getProvider("SunJCE"); // for (Provider provider : new Provider[] { sunPKCS11, sunJCE }) // for (Provider.Service service : provider.getServices()) // if ("Cipher".equalsIgnoreCase(service.getType())) // System.err.println(service); // org.bouncycastle.crypto.Digest & java.security.MessageDigest Digest[] digests = { new SHA1Digest(), new OpenSSLDigest(OpenSSLDigest.SHA1) }; MessageDigest[] messageDigests = { MessageDigest.getInstance("SHA-1"), MessageDigest.getInstance("SHA-1", sunPKCS11) }; int maxDigestSize = 0; int maxByteLength = 0; for (Digest digest : digests) { int digestSize = digest.getDigestSize(); if (maxDigestSize < digestSize) maxDigestSize = digestSize; int byteLength = (digest instanceof ExtendedDigest) ? ((ExtendedDigest) digest).getByteLength() : 64; if (maxByteLength < byteLength) maxByteLength = byteLength; System.err.println(digest.getClass().getName() + ": digestSize " + digestSize + ", byteLength " + byteLength + "."); } for (MessageDigest messageDigest : messageDigests) { int digestLength = messageDigest.getDigestLength(); if (maxDigestSize < digestLength) maxDigestSize = digestLength; System.err.println( messageDigest.getProvider().getClass().getName() + ": digestLength " + digestLength + "."); } // org.bouncycastle.crypto.BlockCipher BlockCipher[] ciphers = { new AESFastEngine(), new BlockCipherAdapter(Cipher.getInstance("AES_128/ECB/NoPadding", sunPKCS11)), new BlockCipherAdapter(Cipher.getInstance("AES_128/ECB/NoPadding", sunJCE)), new OpenSSLBlockCipher(OpenSSLBlockCipher.AES_128_ECB) }; for (BlockCipher cipher : ciphers) { Class<?> clazz; if (cipher instanceof BlockCipherAdapter) { clazz = ((BlockCipherAdapter) cipher).getCipher().getProvider().getClass(); } else { clazz = cipher.getClass(); } System.err.println(clazz.getName() + ": blockSize " + cipher.getBlockSize()); } // org.bouncycastle.crypto.Mac Mac[] macs = { new HMac(new SHA1Digest()), new HMac(new OpenSSLDigest(OpenSSLDigest.SHA1)), new OpenSSLHMAC(OpenSSLDigest.SHA1) }; Random random = new Random(System.currentTimeMillis()); byte[] in = new byte[1024 * maxByteLength]; ByteBuffer inNIO = ByteBuffer.allocateDirect(in.length); byte[] out = new byte[maxDigestSize]; ByteBuffer outNIO = ByteBuffer.allocateDirect(out.length); long time0 = 0; int dMax = Math.max(digests.length, messageDigests.length); final int iEnd = 1000, jEnd = 1000; // Base64.Encoder byteEncoder = Base64.getEncoder().withoutPadding(); inNIO.order(ByteOrder.nativeOrder()); outNIO.order(ByteOrder.nativeOrder()); for (int i = 0; i < iEnd; ++i) { System.err.println("========================================"); random.nextBytes(in); inNIO.clear(); inNIO.put(in); // org.bouncycastle.crypto.BlockCipher time0 = 0; for (BlockCipher blockCipher : ciphers) { NIOBlockCipher nioBlockCipher = (blockCipher instanceof NIOBlockCipher) ? (NIOBlockCipher) blockCipher : null; Cipher cipher; Class<?> clazz; if (blockCipher instanceof BlockCipherAdapter) { cipher = ((BlockCipherAdapter) blockCipher).getCipher(); clazz = cipher.getProvider().getClass(); } else { cipher = null; clazz = blockCipher.getClass(); } int blockSize = blockCipher.getBlockSize(); blockCipher.init(true, new KeyParameter(in, 0, blockSize)); long startTime, endTime; int offEnd = in.length - blockSize; if (nioBlockCipher != null && benchmarkNIOBlockCipher) { inNIO.clear(); outNIO.clear(); startTime = System.nanoTime(); for (int j = 0; j < jEnd; ++j) { for (int off = 0; off < offEnd;) { nioBlockCipher.processBlock(inNIO, off, outNIO, 0); off += blockSize; } // nioBlockCipher.reset(); } endTime = System.nanoTime(); outNIO.get(out); } else if (cipher != null && benchmarkJavaxCryptoCipher) { startTime = System.nanoTime(); for (int j = 0; j < jEnd; ++j) { for (int off = 0; off < offEnd;) { int nextOff = off + blockSize; inNIO.limit(nextOff); inNIO.position(off); outNIO.clear(); cipher.update(inNIO, outNIO); off = nextOff; } // cipher.doFinal(); } endTime = System.nanoTime(); outNIO.clear(); outNIO.get(out); } else { startTime = System.nanoTime(); for (int j = 0; j < jEnd; ++j) { for (int off = 0; off < offEnd;) { blockCipher.processBlock(in, off, out, 0); off += blockSize; } // blockCipher.reset(); } endTime = System.nanoTime(); } long time = endTime - startTime; if (time0 == 0) time0 = time; Arrays.fill(out, blockSize, out.length, (byte) 0); System.err.println(clazz.getName() + ": ratio " + String.format("%.2f", time / (double) time0) + ", time " + time + ", out " /*+ byteEncoder.encodeToString(out)*/ + "."); } // org.bouncycastle.crypto.Digest & java.security.MessageDigest System.err.println("----------------------------------------"); time0 = 0; for (int d = 0; d < dMax; ++d) { Arrays.fill(out, (byte) 0); // org.bouncycastle.crypto.Digest Digest digest = (d < digests.length) ? digests[d] : null; int byteLength = (digest instanceof ExtendedDigest) ? ((ExtendedDigest) digest).getByteLength() : 64; long startTime, endTime; int offEnd = in.length - byteLength; if (digest != null) { startTime = System.nanoTime(); for (int j = 0; j < jEnd; ++j) { for (int off = 0; off < offEnd;) { digest.update(in, off, byteLength); off += byteLength; } digest.doFinal(out, 0); } endTime = System.nanoTime(); long time = endTime - startTime; if (time0 == 0) time0 = time; System.err.println(digest.getClass().getName() + ": ratio " + String.format("%.2f", time / (double) time0) + ", time " + time + ", digest " /*+ byteEncoder.encodeToString(out)*/ + "."); } // java.security.MessageDigest MessageDigest messageDigest = (d < messageDigests.length) ? messageDigests[d] : null; if (messageDigest != null) { @SuppressWarnings("unused") byte[] t = null; startTime = System.nanoTime(); for (int j = 0; j < jEnd; ++j) { for (int off = 0; off < offEnd;) { messageDigest.update(in, off, byteLength); off += byteLength; } t = messageDigest.digest(); } endTime = System.nanoTime(); long time = endTime - startTime; if (time0 == 0) time0 = time; System.err.println(messageDigest.getProvider().getClass().getName() + ": ratio " + String.format("%.2f", time / (double) time0) + ", time " + (endTime - startTime) + ", digest " /*+ byteEncoder.encodeToString(t)*/ + "."); } } // org.bouncycastle.crypto.Mac System.err.println("----------------------------------------"); time0 = 0; for (Mac mac : macs) { mac.init(new KeyParameter(in, 0, maxByteLength)); long startTime, endTime; int offEnd = in.length - maxByteLength; startTime = System.nanoTime(); for (int j = 0; j < jEnd; ++j) { for (int off = 0; off < offEnd; off = off + maxByteLength) mac.update(in, off, maxByteLength); mac.doFinal(out, 0); } endTime = System.nanoTime(); int macSize = mac.getMacSize(); long time = endTime - startTime; if (time0 == 0) time0 = time; Arrays.fill(out, macSize, out.length, (byte) 0); System.err.println(mac.getClass().getName() + ": ratio " + String.format("%.2f", time / (double) time0) + ", time " + time + ", out " /*+ byteEncoder.encodeToString(out)*/ + "."); } } }