package com.sandu.ximon.admin.manager.iot.rrpc.util;
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import cn.hutool.core.util.HexUtil;
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import java.util.zip.CRC32;
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/**
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* @author chenjiantian
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* @date 2021/12/3 18:43
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*/
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public class CRC32Utils {
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public static String getCRC32(String hex) {
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CRC32 crc32 = new CRC32();
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byte[] bytes = HexUtil.decodeHex(hex);
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crc32.update(bytes);
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long value = crc32.getValue();
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return SupplementUtils.suppleZero(Long.toHexString(value).toUpperCase(),8);
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}
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public static boolean validateFrame(String frame, String crc32) {
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String crc32Validate = getCRC32(frame);
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if(crc32.equals(crc32Validate)){
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return true;
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}
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return false;
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}
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}
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