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未解决 [求助] 加密电梯卡，大牛们进来帮忙看看！ 1000雪币
发表于: 2024-7-28 16:08 1777

未解决 [求助] 加密电梯卡，大牛们进来帮忙看看！ 1000雪币

mb_puepabye 活跃值
2024-7-28 16:08
1777

大神们，我有几张单元楼栋的通卡，可以刷所有楼层。现在想通过这几张卡的数据搞到所有其他楼栋的通卡，包括电梯和单元门禁，并且把所有卡合并到一张卡中。
以下是6栋2单元的通卡数据，共33层，每层5户，1楼只有3户。
楼层该卡中含有电梯数据和单元的门禁数据，应该还含有小区大门的数据，如果大神您看了这数据觉得有可能找出规律，我还可以提供其他几张卡的数据帮助分析。
首先，可以确定该卡没有滚动码，只是做了加密处理。
如果完全找不出规律，那能否把现有的几张卡合并成一张卡呢？。
当然，如果能帮忙解决这个问题，必有重谢！

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Acewipe
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你能读出数据，基础的控制位分析肯定都会了，估计你通卡之间的差异化数据太多了，不好判断每个数据块分别代表什么内容，你可以再多搞几个个业主的卡和通卡作比较，两两比较，可能容易出来，用控制变量的办法，比如同一单元不同层的业务，同一层不同单元的业主，
2024-9-7 11:33
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