code: public static KeyPair generateKeyPair(String algorithm, AlgorithmParameterSpec params) {
  		return generateKeyPair(algorithm, null, params);
  	}
docs: 生成用于非对称加密的公钥和私钥<br>
  密钥对生成算法见：https://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#KeyPairGenerator
  
  @param algorithm 非对称加密算法
  @param params {@link AlgorithmParameterSpec}
  @return {@link KeyPair}
  @since 4.3.3