Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

不可加密的异世界第三问(大概是)非预期解 #28

Open
wlt233 opened this issue Oct 29, 2022 · 2 comments
Open

不可加密的异世界第三问(大概是)非预期解 #28

wlt233 opened this issue Oct 29, 2022 · 2 comments
Labels

Comments

@wlt233
Copy link
Contributor

wlt233 commented Oct 29, 2022

0xffffffffffffffffffffffffffffffff 是一个解,因为这玩意 crc128 出来就是它本身,并且这是一个 des 弱密钥...顺手一试就试出来了

@taoky taoky added the solution label Oct 29, 2022
@liuly0322
Copy link
Member

但是我真的是拿软件逆了crc128逆出了这个

@cuihaoleo
Copy link
Contributor

我也是这么做出来的

不过补充一下,带正确 parity bit 的 DES weak key 是 0xFEFEFEFEFEFEFEFE(每个 byte 必须是 odd parity)。只是很多 DES 实现并不强制检查 parity bit。

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
Projects
None yet
Development

No branches or pull requests

4 participants