各位大神好，最被一张门禁卡的数据给搞糊涂了，请各位大神帮忙看看数据，给个分析思路，看一下这张宿舍门禁卡的数据是怎么实现的。在此万分感谢！
材料：原始门禁卡2张，复制门禁卡2张，ACR122U一台
0.00X背景：
学校只发一张门禁卡，如果丢失再买一张是50大元，已经丢过一张了，于是想把原始的门禁卡信息读出来做一个备份，并做为备用卡。
0.01X操作及读出数据
对本人的一张门禁卡读出数据如下：
0扇区
0区块:0AAAB4EBFF08040001C0886E7854F21D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:00681100000000008000000000000000
1区块:00000000000000000000000000000000
2区块:0000000000000000100B134201010000
3区块:0DA2BDEB30C9FF078069F25D4214CF36
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
后面的扇区都是初始数据，和3-5扇区一样，就不发了，破了2扇区密码和数据后写入一张空白卡，包括UID全部写入。
0X002发生的情况
在写好备份卡后拿备份卡去测试开门，门应声而开，但是问题来了，人是出去了，可是进不来了，备份卡失效了，在外面冰冻10分钟后回到宿舍，再次读取备份卡数据，数据如下：
0扇区
0区块:0AAAB4EBFF08040001C0886E7854F21D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:0A08173DFFFFFFFFFFFFFFFFFFFFFFFF
1区块:00000000000000000000000000000000
2区块:0000000000000000100B134201010000
3区块:0DA2BDEB30C9FF078069F25D4214CF36
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
第2扇区的数据有了变化，估计这个是不能开门的原因，分析了半天，也没有得到变化的规律，于是拿原始卡再去开门，然后再回来读卡，原始卡的数据如下：
0扇区
0区块:0AAAB4EBFF08040001C0886E7854F21D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:00681100000000008000000000000000
1区块:00000000000000000000000000000000
2区块:0000000000000000100B134201010000
3区块:0DA2BDEB30C9FF078069F25D4214CF36
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
发现原始卡第2扇区的数据没有变化，于是再借了同学的一张门卡读了一下，数据如下：
0扇区
0区块:2AB4AEEBDB08040001345 E9BF464861D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:01D21100000000008000000000000000
1区块:00000000000000000000000000000000
2区块:0000000000000000100B1A4201010000
3区块:2DBCA7EB30EDFF078069D2435814 CF12
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
发现2扇区的KEYA和KEYB不一样，数据也不一样，想了半天也没有想通这是为什么
0X003问题
请各位大神指导一下，提个思路，原始卡是怎么做到这一点的？应如何分析这个卡中的数据。谢谢！
材料：原始门禁卡2张，复制门禁卡2张，ACR122U一台
0.00X背景：
学校只发一张门禁卡，如果丢失再买一张是50大元，已经丢过一张了，于是想把原始的门禁卡信息读出来做一个备份，并做为备用卡。
0.01X操作及读出数据
对本人的一张门禁卡读出数据如下：
0扇区
0区块:0AAAB4EBFF08040001C0886E7854F21D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:00681100000000008000000000000000
1区块:00000000000000000000000000000000
2区块:0000000000000000100B134201010000
3区块:0DA2BDEB30C9FF078069F25D4214CF36
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
后面的扇区都是初始数据，和3-5扇区一样，就不发了，破了2扇区密码和数据后写入一张空白卡，包括UID全部写入。
0X002发生的情况
在写好备份卡后拿备份卡去测试开门，门应声而开，但是问题来了，人是出去了，可是进不来了，备份卡失效了，在外面冰冻10分钟后回到宿舍，再次读取备份卡数据，数据如下：
0扇区
0区块:0AAAB4EBFF08040001C0886E7854F21D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:0A08173DFFFFFFFFFFFFFFFFFFFFFFFF
1区块:00000000000000000000000000000000
2区块:0000000000000000100B134201010000
3区块:0DA2BDEB30C9FF078069F25D4214CF36
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
第2扇区的数据有了变化，估计这个是不能开门的原因，分析了半天，也没有得到变化的规律，于是拿原始卡再去开门，然后再回来读卡，原始卡的数据如下：
0扇区
0区块:0AAAB4EBFF08040001C0886E7854F21D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:00681100000000008000000000000000
1区块:00000000000000000000000000000000
2区块:0000000000000000100B134201010000
3区块:0DA2BDEB30C9FF078069F25D4214CF36
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
发现原始卡第2扇区的数据没有变化，于是再借了同学的一张门卡读了一下，数据如下：
0扇区
0区块:2AB4AEEBDB08040001345 E9BF464861D
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
1扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
2扇区
0区块:01D21100000000008000000000000000
1区块:00000000000000000000000000000000
2区块:0000000000000000100B1A4201010000
3区块:2DBCA7EB30EDFF078069D2435814 CF12
3扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
4扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
5扇区
0区块:00000000000000000000000000000000
1区块:00000000000000000000000000000000
2区块:00000000000000000000000000000000
3区块:FFFFFFFFFFFFFF078069FFFFFFFFFFFF
发现2扇区的KEYA和KEYB不一样，数据也不一样，想了半天也没有想通这是为什么
0X003问题
请各位大神指导一下，提个思路，原始卡是怎么做到这一点的？应如何分析这个卡中的数据。谢谢！
