初中级第四题怎么做

dyc123

例1
0扇区
0区块：2799C3DBA60804006263646566676869
1区块：B39E1487F01CA350BAB0B5B9FA12OFEC
2区块：00000000000000000000000000000000
3区块：C6602D70C0B8FF078069C6602D70C0B8

1扇区
0区块：02A90000020001001D0000000000004B
1区块：00000000000000000000000000000000
2区块：00000000000000000000130615173B00
3区块：621621910525FF078069665544332211


例2-数据为例1原卡延期

0区块：2799C3DBA60804006263646566676869
1区块：B39E1487F01CA350BAB0B5B9FA12OFEC
2区块：00000000000000000000000000000000
3区块：C6602D70C0B8FF078069C6602D70C0B8

1扇区
0区块：02A90000020001001D00000000000053
1区块：00000000000000000000000000000000
2区块：0000000000000000000014061C173B00
3区块：621621910525FF078069665544332211

梯控随意改

02A90000020001001D000000000000       00000000000000000000140C1F173B00  算法ADD累加 5C

1. 时间（1306151）明文：190621   
2.效验4B 53  
3. 时间暗文：140C1F  效验5C