MISC
北京地铁
Color Threshold
提示：AES ECB 密钥为小写字母提示 2：密钥不足位用 0 补全提示 3：不要光记得隐写不看图片本身啊 …
MulTzor
原文为英语，请破解
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
[PWN] strike
Wireshark
简单的流量分析
联盟决策大会
为了共同的利益，【组织 1】和【组织 2】成立了联盟，并遵守共同约定的协议。为了让协议的制定和修改更加公平，组织 1 和组织 2 共同决定：当三位以上【组织 1】成员和三位以上【组织 2】成员同意时，才可以制定或修改协议。为了实现这一功能，联盟的印章被锁在密码保险柜中，而保险柜的密码只通过 Shamir 秘密分享方案分享给【组织 1】和【组织 2】的每一位成员。现在，【组织 1】的【成员 1】、【成员 2】、【成员 4】，【组织 2】的【成员 3】、【成员 4】、【成员 5】一致同意制定新的协议。请还原出这套方案的设计思路，按照这套方案的思路恢复出保险柜密码，取出印章吧！
p =
C45467BBF4C87D781F903249243DF8EE868EBF7B090203D2AB0EDA8EA48719ECE9B914F9F5D0795C23BF627
E3ED40FBDE968251984513ACC2B627B4A483A6533
组织 1 成员 1 =
729FB38DB9E561487DCE6BC4FB18F4C7E1797E6B052AFAAF56B5C189D847EAFC4F29B4EB86F6E678E0EDB17
77357A0A33D24D3301FC9956FFBEA5EA6B6A3D50E
组织 1 成员 2 =
478B973CC7111CD31547FC1BD1B2AAD19522420979200EBA772DECC1E2CFFCAE34771C49B5821E9C0DDED7C
24879484234C8BE8A0B607D8F7AF0AAAC7C7F19C6
组织 1 成员 4 =
BFCFBAD74A23B3CC14AF1736C790A7BC11CD08141FB805BCD9227A6E9109A83924ADEEDBC343464D42663AB
5087AE26444A1E42B688A8ADCD7CF2BA7F75CD89D
组织 2 成员 3 =
9D3D3DBDDA2445D0FE8C6DFBB84C2C30947029E912D7FB183C425C645A85041419B89E25DD8492826BD709A
0A494BE36CEF44ADE376317E7A0C70633E3091A61
组织 2 成员 4 =
79F9F4454E84F32535AA25B8988C77283E4ECF72795014286707982E57E46004B946E42FB4BE9D22697393F
C7A6C33A27CE0D8BFC990A494C12934D61D8A2BA8
组织 2 成员 5 =
2A074DA35B3111F1B593F869093E5D5548CCBB8C0ADA0EBBA936733A21C513ECF36B83B7119A6F5BEC6F472
444A3CE2368E5A6EBF96603B3CD10EAE858150510
Reverse
windows reverse1
windows reverse2
Confused
confused, need your flag.
obfuscating macros
提交格式：DDCTF{最短的正确输入}，使得程序输出 WELL DONE!
黑盒破解 II- 时间谜题
黑盒破解 II- 时间谜题去年大家已经破解掉了黑盒子系统，现在飞船的发动机引擎已经可以启动了，但常规的飞行速度是不能保证我们安全逃离的，速度与时间很重要! 该如何做呢？挑战一下吧。你可以输入一串精心构造的数据来触发超常规的引擎启动获得逃离，但别被他骗了，不过无论怎样，当你看到 Flag 时就已经成功了。
注：请运行在 >= windows 7 x64 系统之上，程序正确输出格式：Flag:DDCTF{….}