package com.ruoyi.common.utils.security;
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import java.security.Key;
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import java.security.NoSuchAlgorithmException;
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import javax.crypto.KeyGenerator;
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/**
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* 对称密钥密码算法工具类
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*
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* @author ruoyi
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*/
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public class CipherUtils
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{
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/**
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* 生成随机秘钥
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*
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* @param keyBitSize 字节大小
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* @param algorithmName 算法名称
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* @return 创建密匙
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*/
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public static Key generateNewKey(int keyBitSize, String algorithmName)
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{
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KeyGenerator kg;
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try
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{
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kg = KeyGenerator.getInstance(algorithmName);
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}
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catch (NoSuchAlgorithmException e)
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{
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String msg = "Unable to acquire " + algorithmName + " algorithm. This is required to function.";
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throw new IllegalStateException(msg, e);
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}
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kg.init(keyBitSize);
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return kg.generateKey();
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}
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}
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