ALL CTF 筆記
ALL CTF: http://140.110.112.28 asciitohex: https://www.asciitohex.com/ 凱薩加解密: https://www.dcode.fr/caesar-cipher 其中 php md5 跟SHA1 的BUG 可以看這篇 : https://www.whitehatsec.com/blog/magic-hashes/ php://filter: https://www.leavesongs.com/PENETRATION/php-filter-magic.html