202404_QQ群_kaisa

Ref:QQ群
Tags:变异凯撒,爆破

0x01 题目

82, 87, 75, 80, 99, 87, 84, 76, 21, 82, 72, 71, 83, 68, 82, 23, 64, 20, 12, 16, 8, 60, 83

0x02 WP

目测与ASCII码有关，尝试步进爆破

lst=[82, 87, 75, 80, 99, 87, 84, 76, 21, 82, 72, 71, 83, 68, 82, 23, 64, 20, 12, 16, 8, 60, 83]

# 尝试步进爆破
for i in range(0,70):
    flag = ""
    for item in lst:
        flag+=chr(item+i)
    print(i,flag)


# 从20开始发现flag痕迹
flag = ""
i=20
for item in lst:
    flag+=chr(item+i)
    i+=1
print(flag)