求大神赐教

fupsky

卡1

0扇区
1C 31 72 66 39 08 04 00 04 CC 86 23 22 19 CA 90
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF

1扇区
3B 03 00 00 90 01 00 00 00 00 33 01 FF FF FF FF
94 C8 01 00 00 00 00 00 00 00 00 00 00 00 00 00
72 0A 6F F1 12 2C 0A 5D 65 50 EE FB 3E 16 86 6E
2D F9 EC 13 73 B5 FF 07 80 69 98 8A FF 12 61 94



卡2

0扇区
2A 51 81 DF 25 08 04 00 04 01 90 79 DC F0 A3 90
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF

1扇区
3B 03 00 00 90 01 00 00 00 00 33 01 FF FF FF FF
94 C8 01 00 00 00 00 00 00 00 00 00 00 00 00 00
3B 67 41 47 49 B0 8D F4 B8 B4 28 59 1B 88 C0 D6
1B 99 1F AA 13 83 FF 07 80 69 98 8A B5 D3 C0 6A


现在想知道1扇区3区块内后4个字节是如何计算的

dtsuifeng

知道前面怎么来的？

rockwtr

2D F9 EC 13 73 B5

卡密红色部分是怎么来的，搞清楚了吗？

fupsky

dtsuifeng 发表于 2025-1-11 18:47
知道前面怎么来的？

卡号异或

fupsky

rockwtr 发表于 2025-1-11 20:40
2D F9 EC 13 73 B5

卡密红色部分是怎么来的，搞清楚了吗？

这个知道了