0X01 base解密
http://www.nicetool.net/tag/base/
0X02 各种码的识别
https://demo.dynamsoft.com/DBR/BarcodeReaderDemo.aspx
0X03 各种奇怪的加密(花瓣加密,音乐符号加密。。。)
https://www.qqxiuzi.cn/bianma/wenbenjiami.php?s=yinyue
0X04 brainfuck/Ook!
https://www.splitbrain.org/services/ook
0X04 词频分析(适用于字符替换)
0X04 CTF工具合集下载
https://www.ctftools.com/down/
0x05 看完就能应对各种RSA
https://www.freebuf.com/articles/others-articles/166049.html