Examples with PKCS8EncodedKeySpec java.security.spec.PKCS8EncodedKeySpec used on opensource projects

Example 46 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project yyl_example by Relucent.

the class Rsa method getPrivateKey.

/**
	 * 得到私钥
	 * @param key 密钥字符串（经过base64编码）
	 * @throws Exception
	 */
public static PrivateKey getPrivateKey(String key) throws Exception {
    byte[] keyBytes;
    keyBytes = (new sun.misc.BASE64Decoder()).decodeBuffer(key);
    PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes);
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    PrivateKey privateKey = keyFactory.generatePrivate(keySpec);
    return privateKey;
}

Example 47 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project azure-sdk-for-java by Azure.

the class CertificateOperationsTest method extractPrivateKeyFromPemContents.

/**
     * Extracts private key from PEM contents
     * 
     * @throws InvalidKeySpecException
     * @throws NoSuchAlgorithmException
     */
private static PrivateKey extractPrivateKeyFromPemContents(String pemContents) throws InvalidKeySpecException, NoSuchAlgorithmException {
    Matcher matcher = _privateKey.matcher(pemContents);
    if (!matcher.find()) {
        throw new IllegalArgumentException("No private key found in PEM contents.");
    }
    byte[] privateKeyBytes = _base64.decode(matcher.group(1));
    PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
    KeyFactory keyFactory = KeyFactory.getInstance(ALGO_RSA);
    PrivateKey privateKey = keyFactory.generatePrivate(keySpec);
    return privateKey;
}

Example 48 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project Gradle-demo by Arisono.

the class RSAUtils method restorePrivateKey.

/**
	 * 还原私钥，PKCS8EncodedKeySpec 用于构建私钥的规范
	 * 
	 * @param keyBytes
	 * @return
	 */
public static PrivateKey restorePrivateKey(byte[] keyBytes) {
    PKCS8EncodedKeySpec pkcs8EncodedKeySpec = new PKCS8EncodedKeySpec(keyBytes);
    try {
        KeyFactory factory = KeyFactory.getInstance(KEY_ALGORITHM);
        PrivateKey privateKey = factory.generatePrivate(pkcs8EncodedKeySpec);
        return privateKey;
    } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
        e.printStackTrace();
    }
    return null;
}

Example 49 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project CloudStack-archive by CloudStack-extras.

the class CertificateHelper method buildPrivateKey.

public static Key buildPrivateKey(String base64EncodedKeyContent) throws NoSuchAlgorithmException, InvalidKeySpecException, IOException {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    PKCS8EncodedKeySpec keysp = new PKCS8EncodedKeySpec(Base64.decodeBase64(base64EncodedKeyContent));
    return kf.generatePrivate(keysp);
}

Example 50 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project graylog2-server by Graylog2.

the class KeyUtil method createKeySpec.

private static PKCS8EncodedKeySpec createKeySpec(byte[] keyBytes, String password) throws IOException, NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException {
    if (Strings.isNullOrEmpty(password)) {
        return new PKCS8EncodedKeySpec(keyBytes);
    }
    final EncryptedPrivateKeyInfo pkInfo = new EncryptedPrivateKeyInfo(keyBytes);
    final SecretKeyFactory kf = SecretKeyFactory.getInstance(pkInfo.getAlgName());
    final PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray());
    final SecretKey secretKey = kf.generateSecret(keySpec);
    @SuppressWarnings("InsecureCryptoUsage") final Cipher cipher = Cipher.getInstance(pkInfo.getAlgName());
    cipher.init(Cipher.DECRYPT_MODE, secretKey, pkInfo.getAlgParameters());
    return pkInfo.getKeySpec(cipher);
}