Examples with RSAPrivateKey java.security.interfaces.RSAPrivateKey used on opensource projects

Example 46 with RSAPrivateKey

use of java.security.interfaces.RSAPrivateKey in project JustAndroid by chinaltz.

the class AbRsa method loadPrivateKey.

/**
     * 从字符串中加载私钥

     * 加载时使用的是PKCS8EncodedKeySpec（PKCS#8编码的Key指令）。
     *
     * @param privateKey
     * @return
     * @throws Exception
     */
public static PrivateKey loadPrivateKey(String privateKey) throws Exception {
    try {
        byte[] buffer = AbBase64.decode(privateKey);
        // X509EncodedKeySpec keySpec = new X509EncodedKeySpec(buffer);
        PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(buffer);
        KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM);
        return (RSAPrivateKey) keyFactory.generatePrivate(keySpec);
    } catch (NoSuchAlgorithmException e) {
        throw new Exception("无此算法");
    } catch (InvalidKeySpecException e) {
        throw new Exception("私钥非法");
    } catch (NullPointerException e) {
        throw new Exception("私钥数据为空");
    }
}