problem:回旋十三踢
from:2015广州强网杯
description:
看我回旋13踢
synt{5pq1004q-86n5-46q8-o720-oro5on0417r1}
write up:
rot13
flag{5cd1004d-86a5-46d8-b720-beb5ba0417e1}
problem:Rotated!
from:iceCTF
description:
They went and ROTated the flag by 5 and then ROTated it by 8! The scoundrels! Anyway once they were done this was all that was left VprPGS{jnvg_bar_cyhf_1_vf_3?}
tips:flag格式是IceCTF
write up:
由5,8猜测rot13
rot13
IceCTF{wait_one_plus_1_is_3?}
problem:致敬经典
from:2015广州强网杯
description:
lrua{1uy3yj9l-yw9u-48j2-uuj8-36h03706y7u7}
write up:用百度搜图发现这个人是克里斯托弗·沃肯,去百科搜他作品,发现他出演过《凯撒大帝》
凯撒密码变种
a b c d e f g h i j k l m n o p q r s t u v w x y z
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
lrua对应flag 发现偶数位左移6位,偶数位右移6位
flag{1ae3ed9f-ec9a-48d2-aad8-36b03706e7a7}
problem:
from:
description:
write up: