Problem: [SWPUCTF 2023 秋季新生赛]Caesar_base
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思路
- 解题大致思路
EXP
import base64
import string
str1 = "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"
string1 = "HIJKLMNOPQRSTUVWXYZABCDEFGhijklmnopqrstuvwxyzabcdefg0123456789+/"
string2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
print (base64.b64decode(str1.translate(str.maketrans(string1,string2))))
总结
- 对该题的考点总结