com.gitee.huanminabc.utils_common.encryption.aes.BasicsAes Maven / Gradle / Ivy
package com.gitee.huanminabc.utils_common.encryption.aes;
public class BasicsAes {
public static final String AES = "AES";
public static final String AES_CBC_PKCS5PADDING = "AES/CBC/PKCS5Padding";
public static final String AES_EBC_PKCS5PADDING = "AES/ECB/PKCS5Padding";
private static final int KEY_LENGTH_16 = 16;
private static final int KEY_LENGTH_32 = 32;
/**
* 检查key是否合法
*
* @param key {@link String}秘钥信息
* @throws Exception 异常信息
*/
public static void checkKey(String key) throws Exception {
if (key == null || key.length() != KEY_LENGTH_16 && key.length() != KEY_LENGTH_32) {
throw new Exception("加密秘钥不正确");
}
}
/**
* 检查偏移矢量是否合法
*
* @param iv {@link String} 偏移矢量
* @throws Exception 异常信息
*/
public static void checkIV(String iv) throws Exception {
if (iv == null || iv.length() != KEY_LENGTH_16) {
throw new Exception("偏移矢量不正确，必须为16位");
}
}
public static void checkKeyAndIV(String key,String iv) throws Exception {
checkKey(key);
checkIV(iv);
}
}