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Remember RSA Buffet? Remember how you only had to break three of the ciphertexts?
Well, now you have to break all of them!
If bash
is started with the name rbash
, or the -r
option is supplied at invocation, the shell becomes restricted. A restricted shell is used to set up an environment more controlled than the standard shell.
Login with ssh [email protected]
, with Password1
as password.
[IP updated on Saturday at 21:51 EST]
問題文をコピペ
(e.g., Hello world を出力してみよう.
ssh [email protected]
password: loginPWforVimJail
MOST HATED CHALLENGE EVER resurrected
We fixed our challenge from two years ago.
I'll only execute shell commands that are authenticated with my hmac-sha1 key. I'll sign a few benign commands for you, but after that, you're on your own!
nc 54.202.2.54 9876
Here's 5 encrypted files, and 10 RSA keys that they might have been encrypted with. (See encrypter.py for details of the encryption format.) Decrypt any 3 files, and recover the key from the secret share!
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