Example usage for javax.crypto Cipher ENCRYPT

Introduction

In this page you can find the example usage for javax.crypto Cipher ENCRYPT_MODE.

Prototype

int ENCRYPT_MODE

To view the source code for javax.crypto Cipher ENCRYPT_MODE.

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Document

Constant used to initialize cipher to encryption mode.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {

    SecretKey key = KeyGenerator.getInstance("DES").generateKey();

    Cipher ecipher = Cipher.getInstance("DES");
    ecipher.init(Cipher.ENCRYPT_MODE, key);

    SealedObject so = new SealedObject(new MySecretClass(), ecipher);

    String algoName = so.getAlgorithm(); // DES

    Cipher dcipher = Cipher.getInstance("DES");
    dcipher.init(Cipher.DECRYPT_MODE, key);
    MySecretClass o = (MySecretClass) so.getObject(dcipher);

}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    KeyGenerator kg = KeyGenerator.getInstance("DES");
    Cipher c = Cipher.getInstance("DES/CBC/PKCS5Padding");
    Key key = kg.generateKey();/*w  w  w  . j a v  a 2  s.  c om*/

    c.init(Cipher.ENCRYPT_MODE, key);
    byte input[] = "Stand and unfold yourself".getBytes();
    byte encrypted[] = c.doFinal(input);
    byte iv[] = c.getIV();

    IvParameterSpec dps = new IvParameterSpec(iv);
    c.init(Cipher.DECRYPT_MODE, key, dps);
    byte output[] = c.doFinal(encrypted);
    System.out.println(new String(output));
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    KeyGenerator keyGenerator = KeyGenerator.getInstance("DESede");
    keyGenerator.init(168);/*from  w  ww  . j  a  va 2 s  . c  o  m*/
    Key key = keyGenerator.generateKey();

    Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, key);

    byte[] ciphertext = cipher.doFinal("text".getBytes("UTF8"));

    for (int i = 0; i < ciphertext.length; i++) {
        System.out.print(ciphertext[i] + " ");
    }

    cipher.init(Cipher.DECRYPT_MODE, key);

    byte[] decryptedText = cipher.doFinal(ciphertext);

    System.out.println(new String(decryptedText, "UTF8"));
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {

    KeyGenerator keyGenerator = KeyGenerator.getInstance("Blowfish");
    keyGenerator.init(128);//from   w  ww  . j a v  a  2s. c  o  m
    SecretKey key = keyGenerator.generateKey();

    Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, key);

    byte[] cipherText = cipher.doFinal("This is a test.".getBytes("UTF8"));

    System.out.println(new String(cipherText));
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    String creditCard = "1234567890";

    KeyGenerator keyGenerator = KeyGenerator.getInstance("DESede");

    Key key = keyGenerator.generateKey();
    Cipher cipher = Cipher.getInstance("DESede");
    cipher.init(Cipher.ENCRYPT_MODE, key);

    SealedObject so = new SealedObject(creditCard, cipher);

    String unencryptedCreditCard = (String) so.getObject(key);

    System.out.println(unencryptedCreditCard);
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    String text = "java2s";

    KeyGenerator keyGenerator = KeyGenerator.getInstance("Blowfish");
    keyGenerator.init(128);/*from w  w w . j av  a 2s. c  o m*/

    Key key = keyGenerator.generateKey();

    Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, key);

    byte[] ciphertext = cipher.doFinal(text.getBytes("UTF8"));

    for (int i = 0; i < ciphertext.length; i++) {
        System.out.print(ciphertext[i] + " ");
    }
    cipher.init(Cipher.DECRYPT_MODE, key);
    byte[] decryptedText = cipher.doFinal(ciphertext);

    System.out.println(new String(decryptedText, "UTF8"));
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    byte[] data = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 };

    SecretKey key64 = new SecretKeySpec(new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 },
            "Blowfish");

    Cipher c = Cipher.getInstance("Blowfish/ECB/NoPadding");

    c.init(Cipher.ENCRYPT_MODE, key64);
    c.doFinal(data);/*from  w ww  .j a v a 2 s. c  o  m*/

}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Cipher cipher = createCipher(Cipher.ENCRYPT_MODE);
    applyCipher("file_to_encrypt", "encrypted_file", cipher);

    cipher = createCipher(Cipher.DECRYPT_MODE);
    applyCipher("file_to_decrypt", "decrypted_file", cipher);

}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    byte[] data = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 };

    Cipher c = Cipher.getInstance("Blowfish/ECB/NoPadding");

    SecretKey key192 = new SecretKeySpec(new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
            0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 },
            "Blowfish");

    c.init(Cipher.ENCRYPT_MODE, key192);
    c.doFinal(data);/*from ww  w.j av a2 s.c  o  m*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    //Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());

    byte[] input = "input".getBytes();
    byte[] keyBytes = "input123".getBytes();

    SecretKeySpec key = new SecretKeySpec(keyBytes, "ARC4");

    Cipher cipher = Cipher.getInstance("ARC4", "BC");

    byte[] cipherText = new byte[input.length];

    cipher.init(Cipher.ENCRYPT_MODE, key);

    int ctLength = cipher.update(input, 0, input.length, cipherText, 0);

    ctLength += cipher.doFinal(cipherText, ctLength);

    System.out.println("cipher text: " + new String(cipherText));

    byte[] plainText = new byte[ctLength];

    cipher.init(Cipher.DECRYPT_MODE, key);

    int ptLength = cipher.update(cipherText, 0, ctLength, plainText, 0);

    ptLength += cipher.doFinal(plainText, ptLength);

    System.out.println("plain text : " + new String(plainText));
}

Example usage for javax.crypto Cipher ENCRYPT_MODE

Introduction

Prototype

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Usage