List of usage examples for java.security Security addProvider
public static int addProvider(Provider provider)
From source file:MainClass.java
public static void main(String[] args) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); byte[] input = "www.java2s.com".getBytes(); byte[] keyBytes = new byte[] { 0x01, 0x23, 0x45, 0x67, (byte) 0x89, (byte) 0xab, (byte) 0xcd, (byte) 0xef }; byte[] ivBytes = new byte[] { 0x00, 0x01, 0x02, 0x03, 0x00, 0x00, 0x00, 0x01 }; SecretKeySpec key = new SecretKeySpec(keyBytes, "DES"); IvParameterSpec ivSpec = new IvParameterSpec(ivBytes); Cipher cipher = Cipher.getInstance("DES/CTR/NoPadding", "BC"); System.out.println("input : " + new String(input)); // encryption pass cipher.init(Cipher.ENCRYPT_MODE, key, ivSpec); byte[] cipherText = new byte[cipher.getOutputSize(input.length)]; int ctLength = cipher.update(input, 0, input.length, cipherText, 0); ctLength += cipher.doFinal(cipherText, ctLength); System.out.println("cipher: " + new String(cipherText) + " bytes: " + ctLength); // decryption pass cipher.init(Cipher.DECRYPT_MODE, key, ivSpec); byte[] plainText = new byte[cipher.getOutputSize(ctLength)]; int ptLength = cipher.update(cipherText, 0, ctLength, plainText, 0); ptLength += cipher.doFinal(plainText, ptLength); System.out.println("plain : " + new String(plainText) + " bytes: " + ptLength); }
From source file:MainClass.java
public static void main(String args[]) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); SecretKey secretKey;/* www . j av a 2 s .com*/ Cipher encrypter, decrypter; secretKey = KeyGenerator.getInstance("DES").generateKey(); encrypter = Cipher.getInstance("DES"); encrypter.init(Cipher.ENCRYPT_MODE, secretKey); decrypter = Cipher.getInstance("DES"); decrypter.init(Cipher.DECRYPT_MODE, secretKey); MyClass cust, unsealed; SealedObject sealed; cust = new MyClass(); cust.name = "Paul"; cust.password = "password"; // Seal it, storing it in a SealedObject sealed = (new SealedObject(cust, encrypter)); // Try unsealing it String algorithmName = sealed.getAlgorithm(); System.out.println(algorithmName); unsealed = (MyClass) sealed.getObject(decrypter); System.out.println("NAME: " + unsealed.name); System.out.println("PASSWORD: " + unsealed.password); }
From source file:MainClass.java
public static void main(String[] args) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); Signature signature = Signature.getInstance("SHA1withRSAandMGF1", "BC"); signature.setParameter(PSSParameterSpec.DEFAULT); AlgorithmParameters params = signature.getParameters(); ASN1InputStream aIn = new ASN1InputStream(params.getEncoded("ASN.1")); System.out.println(ASN1Dump.dumpAsString(aIn.readObject())); }
From source file:MainClass.java
public static void main(String args[]) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); SecretKey key = KeyGenerator.getInstance("DES").generateKey(); // for CBC; must be 8 bytes byte[] initVector = new byte[] { 0x10, 0x10, 0x01, 0x04, 0x01, 0x01, 0x01, 0x02 }; AlgorithmParameterSpec algParamSpec = new IvParameterSpec(initVector); Cipher m_encrypter = Cipher.getInstance("DES/CBC/PKCS5Padding"); Cipher m_decrypter = Cipher.getInstance("DES/CBC/PKCS5Padding"); m_encrypter.init(Cipher.ENCRYPT_MODE, key, algParamSpec); m_decrypter.init(Cipher.DECRYPT_MODE, key, algParamSpec); byte[] clearText = "www.java2s.com".getBytes(); byte[] encryptedText = m_encrypter.doFinal(clearText); byte[] decryptedText = m_decrypter.doFinal(encryptedText); System.out.println(new String(clearText)); System.out.println(new String(encryptedText)); System.out.println(new String(decryptedText)); }
From source file:MainClass.java
public static void main(String args[]) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); KeyPair keyPair = generateKeyPair(999); byte[] data = { 65, 66, 67, 68, 69, 70, 71, 72, 73, 74 }; byte[] digitalSignature = signData(data, keyPair.getPrivate()); boolean verified; verified = verifySig(data, keyPair.getPublic(), digitalSignature); System.out.println(verified); keyPair = generateKeyPair(888);/*from w w w .j a va 2 s . co m*/ verified = verifySig(data, keyPair.getPublic(), digitalSignature); System.out.println(verified); }
From source file:MainClass.java
public static void main(String[] args) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); byte[] input = "www.java2s.com".getBytes(); byte[] keyBytes = new byte[] { 0x01, 0x23, 0x45, 0x67, (byte) 0x89, (byte) 0xab, (byte) 0xcd, (byte) 0xef }; byte[] msgNumber = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; IvParameterSpec zeroIv = new IvParameterSpec(new byte[8]); SecretKeySpec key = new SecretKeySpec(keyBytes, "DES"); Cipher cipher = Cipher.getInstance("DES/CBC/PKCS7Padding", "BC"); System.out.println("input : " + new String(input)); // encryption pass cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv); IvParameterSpec encryptionIv = new IvParameterSpec(cipher.doFinal(msgNumber), 0, 8); // encrypt message cipher.init(Cipher.ENCRYPT_MODE, key, encryptionIv); byte[] cipherText = new byte[cipher.getOutputSize(input.length)]; int ctLength = cipher.update(input, 0, input.length, cipherText, 0); ctLength += cipher.doFinal(cipherText, ctLength); System.out.println("cipher: " + new String(cipherText) + " bytes: " + ctLength); cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv); IvParameterSpec decryptionIv = new IvParameterSpec(cipher.doFinal(msgNumber), 0, 8); // decrypt message cipher.init(Cipher.DECRYPT_MODE, key, decryptionIv); byte[] plainText = new byte[cipher.getOutputSize(ctLength)]; int ptLength = cipher.update(cipherText, 0, ctLength, plainText, 0); ptLength += cipher.doFinal(plainText, ptLength); System.out.println("plain : " + new String(plainText) + " bytes: " + ptLength); }
From source file:MainClass.java
public static void main(String[] args) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); byte[] input = new byte[] { (byte) 0xbe, (byte) 0xef }; Cipher cipher = Cipher.getInstance("RSA/None/NoPadding", "BC"); KeyFactory keyFactory = KeyFactory.getInstance("RSA", "BC"); RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(new BigInteger("12345678", 16), new BigInteger("11", 16)); RSAPrivateKeySpec privKeySpec = new RSAPrivateKeySpec(new BigInteger("12345678", 16), new BigInteger("12345678", 16)); RSAPublicKey pubKey = (RSAPublicKey) keyFactory.generatePublic(pubKeySpec); RSAPrivateKey privKey = (RSAPrivateKey) keyFactory.generatePrivate(privKeySpec); cipher.init(Cipher.ENCRYPT_MODE, pubKey); byte[] cipherText = cipher.doFinal(input); System.out.println("cipher: " + new String(cipherText)); cipher.init(Cipher.DECRYPT_MODE, privKey); byte[] plainText = cipher.doFinal(cipherText); System.out.println("plain : " + new String(plainText)); }
From source file:MainClass.java
public static void main(String[] args) throws Exception { Security.addProvider(new BouncyCastleProvider()); byte[] input = "www.java2s.com".getBytes(); System.out.println("input : " + new String(input)); MessageDigest hash = MessageDigest.getInstance("SHA1"); ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(input); DigestInputStream digestInputStream = new DigestInputStream(byteArrayInputStream, hash); ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); int ch;/*from w ww . ja va 2 s. com*/ while ((ch = digestInputStream.read()) >= 0) { byteArrayOutputStream.write(ch); } byte[] newInput = byteArrayOutputStream.toByteArray(); System.out.println("in digest : " + new String(digestInputStream.getMessageDigest().digest())); byteArrayOutputStream = new ByteArrayOutputStream(); DigestOutputStream digestOutputStream = new DigestOutputStream(byteArrayOutputStream, hash); digestOutputStream.write(newInput); digestOutputStream.close(); System.out.println("out digest: " + new String(digestOutputStream.getMessageDigest().digest())); }
From source file:MainClass.java
public static void main(String[] args) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); byte[] input = "www.java2s.com".getBytes(); byte[] keyBytes = new byte[] { 0x73, 0x2f, 0x2d, 0x33, (byte) 0xc8, 0x01, 0x73, 0x2b, 0x72, 0x06, 0x75, 0x6c, (byte) 0xbd, 0x44, (byte) 0xf9, (byte) 0xc1, (byte) 0xc1, 0x03, (byte) 0xdd, (byte) 0xd9, 0x7c, 0x7c, (byte) 0xbe, (byte) 0x8e }; byte[] ivBytes = new byte[] { (byte) 0xb0, 0x7b, (byte) 0xf5, 0x22, (byte) 0xc8, (byte) 0xd6, 0x08, (byte) 0xb8 }; // encrypt the data using precalculated keys Cipher cEnc = Cipher.getInstance("DESede/CBC/PKCS7Padding", "BC"); cEnc.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(keyBytes, "DESede"), new IvParameterSpec(ivBytes)); byte[] out = cEnc.doFinal(input); // decrypt the data using PBE char[] password = "password".toCharArray(); byte[] salt = new byte[] { 0x7d, 0x60, 0x43, 0x5f, 0x02, (byte) 0xe9, (byte) 0xe0, (byte) 0xae }; int iterationCount = 2048; PBEKeySpec pbeSpec = new PBEKeySpec(password, salt, iterationCount); SecretKeyFactory keyFact = SecretKeyFactory.getInstance("PBEWithSHAAnd3KeyTripleDES"); Cipher cDec = Cipher.getInstance("PBEWithSHAAnd3KeyTripleDES"); Key sKey = keyFact.generateSecret(pbeSpec); cDec.init(Cipher.DECRYPT_MODE, sKey); System.out.println("cipher : " + new String(out)); System.out.println("gen key: " + new String(sKey.getEncoded())); System.out.println("gen iv : " + new String(cDec.getIV())); System.out.println("plain : " + new String(cDec.doFinal(out))); }
From source file:MainClass.java
public static void main(String[] args) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding", "BC"); SecureRandom random = new SecureRandom(); KeyPairGenerator fact = KeyPairGenerator.getInstance("RSA", "BC"); fact.initialize(1024, random);// w w w. j a v a2 s .co m KeyPair keyPair = fact.generateKeyPair(); Key wrapKey = createKeyForAES(256, random); cipher.init(Cipher.WRAP_MODE, wrapKey); byte[] wrappedKey = cipher.wrap(keyPair.getPrivate()); cipher.init(Cipher.UNWRAP_MODE, wrapKey); Key key = cipher.unwrap(wrappedKey, "RSA", Cipher.PRIVATE_KEY); System.out.println(keyPair.getPrivate().equals(key)); }