Examples with PemAttribute org.kse.utilities.pem.PemAttribute used on opensource projects

Example 1 with PemAttribute

use of org.kse.utilities.pem.PemAttribute in project keystore-explorer by kaikramer.

the class OpenSslPvkUtil method getEncrypted.

/**
 * OpenSSL encode and encrypt a private key. Encrypted OpenSSL private keys
 * must always by PEM'd.
 *
 * @return The encrypted, PEM'd encoding
 * @param privateKey
 *            The private key
 * @param pbeType
 *            PBE algorithm to use for encryption
 * @param password
 *            Encryption password
 * @throws CryptoException
 *             Problem encountered while getting the encoded private key
 */
public static String getEncrypted(PrivateKey privateKey, OpenSslPbeType pbeType, Password password) throws CryptoException {
    byte[] openSsl = get(privateKey);
    String pemType = null;
    if (privateKey instanceof RSAPrivateCrtKey) {
        pemType = OPENSSL_RSA_PVK_PEM_TYPE;
    } else if (privateKey instanceof ECPrivateKey) {
        pemType = OPENSSL_EC_PVK_PEM_TYPE;
    } else {
        pemType = OPENSSL_DSA_PVK_PEM_TYPE;
    }
    byte[] salt = generateSalt(pbeType.saltSize() / 8);
    String saltHex = bytesToHex(salt);
    byte[] encOpenSsl = null;
    try {
        byte[] encryptKey = deriveKeyFromPassword(password, salt, pbeType.keySize());
        // Create cipher - use all of the salt as the IV
        Cipher cipher = createCipher(pbeType.jceCipher(), encryptKey, salt, ENCRYPT_MODE);
        encOpenSsl = cipher.doFinal(openSsl);
    } catch (GeneralSecurityException ex) {
        throw new CryptoException(MessageFormat.format("OpenSslEncryptionFailed.exception.message", pbeType.friendly()), ex);
    }
    PemAttributes attributes = new PemAttributes();
    attributes.add(new PemAttribute(PROC_TYPE_ATTR_NAME, PROC_TYPE_ATTR_VALUE));
    String dekInfoAttrValue = MessageFormat.format(DEK_INFO_ATTR_VALUE_TEMPLATE, pbeType.dekInfo(), saltHex);
    attributes.add(new PemAttribute(DEK_INFO_ATTR_NAME, dekInfoAttrValue));
    PemInfo pemInfo = new PemInfo(pemType, attributes, encOpenSsl);
    return PemUtil.encode(pemInfo);
}