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add null check
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@ -3,13 +3,14 @@
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-------------------------------------------------------------------------------------------------------------
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# 5.5.2 (2020-11-18)
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# 5.5.2 (2020-11-19)
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### 新特性
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* 【crypto 】 KeyUtil增加重载,AES构造增加重载(issue#I25NNZ@Gitee)
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* 【json 】 JSONUtil增加toList重载(issue#1228@Github)
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* 【core 】 新增CollStreamUtil(issue#1228@Github)
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* 【extra 】 新增Rhino表达式执行引擎(pr#1229@Github)
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* 【crypto 】 增加判空(issue#1230@Github)
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### Bug修复
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* 【cron 】 修复CronTimer可能死循环的问题(issue#1224@Github)
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@ -1,5 +1,7 @@
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package cn.hutool.core.codec;
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import cn.hutool.core.lang.Assert;
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/**
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* BCD码(Binary-Coded Decimal)亦称二进码十进数或二-十进制代码<br>
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* BCD码这种编码形式利用了四个位元来储存一个十进制的数码,使二进制和十进制之间的转换得以快捷的进行<br>
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@ -58,6 +60,7 @@ public class BCD {
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* @return BCD
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*/
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public static byte[] ascToBcd(byte[] ascii) {
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Assert.notNull(ascii, "Ascii must be not null!");
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return ascToBcd(ascii, ascii.length);
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}
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@ -68,6 +71,7 @@ public class BCD {
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* @return BCD
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*/
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public static byte[] ascToBcd(byte[] ascii, int ascLength) {
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Assert.notNull(ascii, "Ascii must be not null!");
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byte[] bcd = new byte[ascLength / 2];
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int j = 0;
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for (int i = 0; i < (ascLength + 1) / 2; i++) {
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@ -83,6 +87,7 @@ public class BCD {
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* @return ASCII字符串
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*/
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public static String bcdToStr(byte[] bytes) {
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Assert.notNull(bytes, "Bcd bytes must be not null!");
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char[] temp = new char[bytes.length * 2];
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char val;
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@ -4,6 +4,7 @@ import cn.hutool.core.codec.BCD;
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import cn.hutool.core.codec.Base64;
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import cn.hutool.core.io.IORuntimeException;
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import cn.hutool.core.io.IoUtil;
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import cn.hutool.core.lang.Assert;
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import cn.hutool.core.util.CharsetUtil;
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import cn.hutool.core.util.HexUtil;
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import cn.hutool.core.util.StrUtil;
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@ -301,6 +302,7 @@ public abstract class AbstractAsymmetricCrypto<T extends AbstractAsymmetricCrypt
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* @since 4.1.0
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*/
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public byte[] decryptFromBcd(String data, KeyType keyType, Charset charset) {
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Assert.notNull(data, "Bcd string must be not null!");
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final byte[] dataBytes = BCD.ascToBcd(StrUtil.bytes(data, charset));
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return decrypt(dataBytes, keyType);
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}
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