Examples with DESKeySpec javax.crypto.spec.DESKeySpec used on opensource projects

Example 1 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project yyl_example by Relucent.

the class DES_Encrypt method decode.

public static byte[] decode(byte[] bytes, byte[] keydate) throws Exception {
    // 从原始密匙数据创建一个DESKeySpec对象
    DESKeySpec dks = new DESKeySpec(keydate);
    // 创建一个密匙工厂获得SecretKey对象
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    SecretKey key = keyFactory.generateSecret(dks);
    // Cipher对象实际完成解密操作
    Cipher cipher = Cipher.getInstance("DES");
    // 用密匙初始化Cipher对象
    cipher.init(Cipher.DECRYPT_MODE, key, new SecureRandom());
    // 执行解密操作
    return cipher.doFinal(bytes);
}

Example 2 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project UltimateAndroid by cymcsg.

the class DefaultAppLock method encryptPassword.

private String encryptPassword(String clearText) {
    try {
        DESKeySpec keySpec = new DESKeySpec(PASSWORD_ENC_SECRET.getBytes("UTF-8"));
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey key = keyFactory.generateSecret(keySpec);
        Cipher cipher = Cipher.getInstance("DES");
        cipher.init(Cipher.ENCRYPT_MODE, key);
        String encrypedPwd = Base64.encodeToString(cipher.doFinal(clearText.getBytes("UTF-8")), Base64.DEFAULT);
        return encrypedPwd;
    } catch (Exception e) {
    }
    return clearText;
}

Example 3 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project UltimateAndroid by cymcsg.

the class DefaultAppLock method decryptPassword.

private String decryptPassword(String encryptedPwd) {
    try {
        DESKeySpec keySpec = new DESKeySpec(PASSWORD_ENC_SECRET.getBytes("UTF-8"));
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey key = keyFactory.generateSecret(keySpec);
        byte[] encryptedWithoutB64 = Base64.decode(encryptedPwd, Base64.DEFAULT);
        Cipher cipher = Cipher.getInstance("DES");
        cipher.init(Cipher.DECRYPT_MODE, key);
        byte[] plainTextPwdBytes = cipher.doFinal(encryptedWithoutB64);
        return new String(plainTextPwdBytes);
    } catch (Exception e) {
    }
    return encryptedPwd;
}

Example 4 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project robovm by robovm.

the class mySecretKeyFactory method testSecretKeyFactory10.

/**
     * Test for <code>generateSecret(KeySpec keySpec)</code> and
     * <code>getKeySpec(SecretKey key, Class keySpec)
     * methods
     * Assertion:
     * throw InvalidKeySpecException if parameter is inappropriate
     */
public void testSecretKeyFactory10() throws InvalidKeyException, InvalidKeySpecException {
    if (!DEFSupported) {
        fail(NotSupportMsg);
        return;
    }
    byte[] bb = new byte[24];
    KeySpec ks = (defaultAlgorithm.equals(defaultAlgorithm2) ? (KeySpec) new DESKeySpec(bb) : (KeySpec) new DESedeKeySpec(bb));
    KeySpec rks = null;
    SecretKeySpec secKeySpec = new SecretKeySpec(bb, defaultAlgorithm);
    SecretKey secKey = null;
    SecretKeyFactory[] skF = createSKFac();
    assertNotNull("SecretKeyFactory object were not created", skF);
    for (int i = 0; i < skF.length; i++) {
        try {
            skF[i].generateSecret(null);
            fail("generateSecret(null): InvalidKeySpecException must be thrown");
        } catch (InvalidKeySpecException e) {
        }
        secKey = skF[i].generateSecret(ks);
        try {
            skF[i].getKeySpec(null, null);
            fail("getKeySpec(null,null): InvalidKeySpecException must be thrown");
        } catch (InvalidKeySpecException e) {
        }
        try {
            skF[i].getKeySpec(null, ks.getClass());
            fail("getKeySpec(null, Class): InvalidKeySpecException must be thrown");
        } catch (InvalidKeySpecException e) {
        }
        try {
            skF[i].getKeySpec(secKey, null);
            fail("getKeySpec(secKey, null): NullPointerException or InvalidKeySpecException must be thrown");
        } catch (InvalidKeySpecException e) {
        // Expected
        } catch (NullPointerException e) {
        // Expected
        }
        try {
            Class c;
            if (defaultAlgorithm.equals(defaultAlgorithm2)) {
                c = DESedeKeySpec.class;
            } else {
                c = DESKeySpec.class;
            }
            skF[i].getKeySpec(secKeySpec, c);
            fail("getKeySpec(secKey, Class): InvalidKeySpecException must be thrown");
        } catch (InvalidKeySpecException e) {
        }
        rks = skF[i].getKeySpec(secKeySpec, ks.getClass());
        if (defaultAlgorithm.equals(defaultAlgorithm1)) {
            assertTrue("Incorrect getKeySpec() result 1", rks instanceof DESedeKeySpec);
        } else {
            assertTrue("Incorrect getKeySpec() result 1", rks instanceof DESKeySpec);
        }
        rks = skF[i].getKeySpec(secKey, ks.getClass());
        if (defaultAlgorithm.equals(defaultAlgorithm1)) {
            assertTrue("Incorrect getKeySpec() result 2", rks instanceof DESedeKeySpec);
        } else {
            assertTrue("Incorrect getKeySpec() result 2", rks instanceof DESKeySpec);
        }
    }
}

Example 5 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project robovm by robovm.

the class SecretKeyFactoryThread method test.

@Override
public void test() throws Exception {
    SecretKeyFactory skf = SecretKeyFactory.getInstance(algName);
    byte[] b = new byte[24];
    KeySpec ks = (KeySpec) ((algName == "DES") ? new DESKeySpec(b) : (algName == "DESede") ? new DESedeKeySpec(b) : new PBEKeySpec("passw".toCharArray()));
    skf.generateSecret(ks);
}