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

Example 76 with SecretKeySpec

use of javax.crypto.spec.SecretKeySpec in project ride-read-android by Ride-Read.

the class EncryptUtils method desTemplate.

/**
     * DES加密模板
     *
     * @param data           数据
     * @param key            秘钥
     * @param algorithm      加密算法
     * @param transformation 转变
     * @param isEncrypt      {@code true}: 加密 {@code false}: 解密
     * @return 密文或者明文，适用于DES，3DES，AES
     */
public static byte[] desTemplate(byte[] data, byte[] key, String algorithm, String transformation, boolean isEncrypt) {
    if (data == null || data.length == 0 || key == null || key.length == 0)
        return null;
    try {
        SecretKeySpec keySpec = new SecretKeySpec(key, algorithm);
        Cipher cipher = Cipher.getInstance(transformation);
        SecureRandom random = new SecureRandom();
        cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec, random);
        return cipher.doFinal(data);
    } catch (Throwable e) {
        e.printStackTrace();
        return null;
    }
}

Example 77 with SecretKeySpec

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

the class AES method decrypt.

//=================================Methods================================================
/**
	 * 将密文使用AES进行解密
	 * @param encryptText 密文字符串
	 * @return 解密后的字符串
	 */
public String decrypt(String encryptText) throws Exception {
    //通过SecretKeySpec形成一个key
    SecretKey key = new SecretKeySpec(keyByte, "AES");
    //获得一个私鈅加密类Cipher，ECB是加密方式，PKCS5Padding是填充方法
    Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
    //使用私鈅解密
    cipher.init(Cipher.DECRYPT_MODE, key);
    byte[] NewCipherText = hexStringTobyteArray(encryptText);
    byte[] newString = cipher.doFinal(NewCipherText);
    return new String(newString, encoding);
}

Example 78 with SecretKeySpec

use of javax.crypto.spec.SecretKeySpec in project wechat by motianhuo.

the class DES method decryptDES.

/**
	 * 数据解密
	 * 
	 * @param decryptString
	 * @return
	 * @throws Exception
	 */
public static String decryptDES(String decryptString) throws Exception {
    byte[] byteMi = new BASE64().decode(decryptString);
    IvParameterSpec zeroIv = new IvParameterSpec(iv);
    SecretKeySpec key = new SecretKeySpec(getkeys().getBytes(), "DES");
    Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);
    byte[] decryptedData = cipher.doFinal(byteMi);
    return new String(decryptedData);
}

Example 79 with SecretKeySpec

use of javax.crypto.spec.SecretKeySpec in project MonjaDB by Kanatoko.

the class MStringUtil method getHMacSHAHash.

//-------------------------------------------------------------------------------
public static final String getHMacSHAHash(String key, String data) {
    String result;
    try {
        // Get an hmac_sha1 key from the raw key bytes
        byte[] keyBytes = key.getBytes();
        SecretKeySpec signingKey = new SecretKeySpec(keyBytes, HMAC_SHA1_ALGORITHM);
        // Get an hmac_sha1 Mac instance and initialize with the signing key
        Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
        mac.init(signingKey);
        // Compute the hmac on input data bytes
        byte[] rawHmac = mac.doFinal(data.getBytes());
        // Convert raw bytes to Hex
        //byte[] hexBytes = new Hex().encode(rawHmac);
        //  Covert array of Hex bytes to a String
        result = byteToHexString(rawHmac);
    //System.out.println("MAC : " + result);
    } catch (Exception e) {
        //throw new SignatureException("Failed to generate HMAC : " + e.getMessage());
        return "";
    }
    return result;
}

Example 80 with SecretKeySpec

use of javax.crypto.spec.SecretKeySpec in project perun by CESNET.

the class Utils method cipherInput.

/**
	 * Return en/decrypted version of input using AES/CBC/PKCS5PADDING cipher.
	 * Perun's internal secretKey and initVector are used (you can configure them in
	 * perun.properties file).
	 *
	 * @param plainText text to en/decrypt
	 * @param decrypt TRUE = decrypt input / FALSE = encrypt input
	 * @return en/decrypted text
	 * @throws cz.metacentrum.perun.core.api.exceptions.InternalErrorException if anything fails
	 */
public static String cipherInput(String plainText, boolean decrypt) throws InternalErrorException {
    try {
        String encryptionKey = BeansUtils.getCoreConfig().getPwdresetSecretKey();
        String initVector = BeansUtils.getCoreConfig().getPwdresetInitVector();
        Cipher c = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        SecretKeySpec k = new SecretKeySpec(encryptionKey.getBytes("UTF-8"), "AES");
        c.init((decrypt) ? Cipher.DECRYPT_MODE : Cipher.ENCRYPT_MODE, k, new IvParameterSpec(initVector.getBytes("UTF-8")));
        if (decrypt) {
            byte[] bytes = Base64.decodeBase64(plainText.getBytes("UTF-8"));
            return new String(c.doFinal(bytes), "UTF-8");
        } else {
            byte[] bytes = Base64.encodeBase64(c.doFinal(plainText.getBytes("UTF-8")));
            return new String(bytes, "UTF-8");
        }
    } catch (Exception ex) {
        throw new InternalErrorException("Error when encrypting message", ex);
    }
}