Example usage for javax.crypto.spec DESedeKeySpec DESedeKeySpec

Introduction

In this page you can find the example usage for javax.crypto.spec DESedeKeySpec DESedeKeySpec.

Prototype

public DESedeKeySpec(byte[] key) throws InvalidKeyException

Source Link

Document

Creates a DESedeKeySpec object using the first 24 bytes in key as the key material for the DES-EDE key.

Usage

From source file:Main.java

public static Key updGenerateKey(String key) {
    try {/*from w  w  w.j a va  2 s. com*/
        DESedeKeySpec KeySpec = new DESedeKeySpec(UdpHexDecode(key));
        SecretKeyFactory KeyFactory = SecretKeyFactory.getInstance("DESede");
        Key k = ((KeyFactory.generateSecret(((KeySpec)))));
        return k;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:Main.java

public static byte[] des3EncodeECB(byte[] key, byte[] data) throws Exception {

    Key deskey = null;/*ww  w  .  j av  a  2 s .co  m*/
    DESedeKeySpec spec = new DESedeKeySpec(key);
    SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
    deskey = keyfactory.generateSecret(spec);

    Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding");

    cipher.init(Cipher.ENCRYPT_MODE, deskey);
    byte[] bOut = cipher.doFinal(data);

    return bOut;
}

From source file:Main.java

public static byte[] ees3DecodeECB(byte[] key, byte[] data) throws Exception {

    Key deskey = null;//from ww w.  j  av a2  s  .  c  om
    DESedeKeySpec spec = new DESedeKeySpec(key);
    SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
    deskey = keyfactory.generateSecret(spec);

    Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding");

    cipher.init(Cipher.DECRYPT_MODE, deskey);

    byte[] bOut = cipher.doFinal(data);

    return bOut;

}

From source file:Main.java

public static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception {

    Key deskey = null;//from  ww  w .jav  a  2s  .c  om
    DESedeKeySpec spec = new DESedeKeySpec(key);
    SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
    deskey = keyfactory.generateSecret(spec);

    Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");
    IvParameterSpec ips = new IvParameterSpec(keyiv);
    cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);
    byte[] bOut = cipher.doFinal(data);

    return bOut;
}

From source file:Main.java

public static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception {

    Key deskey = null;/*from  w  w w .j  a  va2  s. c  o m*/
    DESedeKeySpec spec = new DESedeKeySpec(key);
    SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
    deskey = keyfactory.generateSecret(spec);

    Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");
    IvParameterSpec ips = new IvParameterSpec(keyiv);

    cipher.init(Cipher.DECRYPT_MODE, deskey, ips);

    byte[] bOut = cipher.doFinal(data);

    return bOut;

}

From source file:Main.java

public static byte[] TDesDec(byte[] key, byte[] in) throws Exception {

    Key deskey = null;// w  ww . ja  v  a 2s. c  o m
    byte[] tdesKey = new byte[24];
    if (key.length % 8 != 0)
        return null;

    if (key.length == 8) {
        System.arraycopy(key, 0, tdesKey, 0, 8);
        System.arraycopy(key, 0, tdesKey, 8, 8);
        System.arraycopy(key, 0, tdesKey, 16, 8);
    }

    if (key.length == 16) {
        System.arraycopy(key, 0, tdesKey, 0, 16);
        System.arraycopy(key, 0, tdesKey, 16, 8);
    }

    DESedeKeySpec spec = new DESedeKeySpec(tdesKey);
    SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
    deskey = keyfactory.generateSecret(spec);

    Cipher cipher = Cipher.getInstance("desede" + "/ECB/NoPadding");

    cipher.init(Cipher.DECRYPT_MODE, deskey);
    byte[] bOut = cipher.doFinal(in);

    return bOut;
}

From source file:Main.java

public static byte[] TDesEnc(byte[] key, byte[] in) throws Exception {

    Key deskey = null;/*from  w  ww.  jav  a  2s . c om*/
    byte[] tdesKey = new byte[24];
    if (key.length % 8 != 0)
        return null;

    if (key.length == 8) {
        System.arraycopy(key, 0, tdesKey, 0, 8);
        System.arraycopy(key, 0, tdesKey, 8, 8);
        System.arraycopy(key, 0, tdesKey, 16, 8);
    }

    if (key.length == 16) {
        System.arraycopy(key, 0, tdesKey, 0, 16);
        System.arraycopy(key, 0, tdesKey, 16, 8);
    }

    DESedeKeySpec spec = new DESedeKeySpec(tdesKey);
    SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
    deskey = keyfactory.generateSecret(spec);

    Cipher cipher = Cipher.getInstance("desede" + "/ECB/NoPadding");

    cipher.init(Cipher.ENCRYPT_MODE, deskey);
    byte[] bOut = cipher.doFinal(in);

    return bOut;
}

From source file:Authentication.HashPassword.java

public HashPassword() throws Exception {
    myEncryptionKey = "ThisIsSpartaThisIsSparta";
    myEncryptionScheme = DESEDE_ENCRYPTION_SCHEME;
    arrayBytes = myEncryptionKey.getBytes(UNICODE_FORMAT);
    ks = new DESedeKeySpec(arrayBytes);
    skf = SecretKeyFactory.getInstance(myEncryptionScheme);
    cipher = Cipher.getInstance(myEncryptionScheme);
    key = skf.generateSecret(ks);/*from  w ww .  ja va 2s .c  o m*/
}

From source file:com.sds.acube.ndisc.xnapi.XNApiDesCipher.java

/**
 *   ?<br>/*w  w w .  ja va 2  s.co  m*/
 * 3DES ?? 24bit KEY ?<br>
 * DES ??  16bit KEY ?.<br>
 * 
 * @return 
 */
private static Key getKey() {
    String key = "x0134-ad17s658601j56-q75k2we0des-key".substring(0, 24); // ??   .
    try {
        DESedeKeySpec desKeySpec = new DESedeKeySpec(key.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
        return keyFactory.generateSecret(desKeySpec);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:com.arwantech.docjavaui.utils.TripleDES.java

public TripleDES(String secretKey) throws Exception {
    myEncryptionKey = secretKey;//from   w w w  . j  ava  2  s. c om
    myEncryptionScheme = DESEDE_ENCRYPTION_SCHEME;
    arrayBytes = myEncryptionKey.getBytes(UNICODE_FORMAT);
    ks = new DESedeKeySpec(arrayBytes);
    skf = SecretKeyFactory.getInstance(myEncryptionScheme);
    cipher = Cipher.getInstance(myEncryptionScheme);
    key = skf.generateSecret(ks);
}