On March 23, 2023, 8:54 p.m.
Did anyone notice that Josse's way of mixing the alphabet is the same one used by Wheatstone? It must have been a popular method at the time.
Edit: except for…
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On March 23, 2023, 8:54 p.m.
Did anyone notice that Josse's way of mixing the alphabet is the same one used by Wheatstone? It must have been a popular method at the time.
Edit: except for…
On Feb. 25, 2023, 3:46 p.m.
I am so embarrased. Please disregard everything. My email wasn't being forwarded. All the notifications are there on the other account. So sorry, and thank you.
On Feb. 25, 2023, 3:28 a.m.
I did as you instructed. I found that I was already subscribed for new challenges. But I "saved changes" anyway.
The Josse 2 challege has appeared on the webs…
On Feb. 17, 2023, 3:47 a.m.
Hello, everyone.
I did not receive an email to let me know that this new challenge had been posted. I thought I was subscribed to the relevant things, but per…
On Dec. 20, 2022, 9:22 p.m.
Thank you both for replying. I think it is working, but so far the only evidence I have is the confirmation link, which was sent to the new address.
I seem to…
On Dec. 13, 2022, 11:38 p.m.
Hi,
How can I change my email address for my account at MTC3? There only seems to be a way to change my password.
Thank you.
On Nov. 8, 2022, 3:21 a.m.
Maybe there should be a part 6 with a scrambled table and short ciphertext.
On Nov. 4, 2022, 10:01 p.m.
My opinion is that this challenge should not be on level 3.
On Oct. 23, 2022, 9:55 p.m.
For those who come after us: From the challenge description, it is clear that the plaintext ends on a word boundary. You might think that you could save some t…
On Sept. 6, 2022, 12:58 a.m.
Can you tell me if the two masks undergo the same permutation? Thanks.
On Sept. 4, 2022, 4:16 a.m.
Anyone still monitoring this thread?
Anyway, I brute-forced it and still did not find a solution. Hm?
On Sept. 1, 2022, 6:53 p.m.
Is the permutation the same for both masks? Thank you.
On Sept. 1, 2022, 12:44 a.m.
I'm saying, e.g. for ciphertext 4, that there are 7! inner alphabets that will give the same solution.
On Aug. 25, 2022, 8:12 p.m.
BTW, in part 6 you say that more iterations don't increase security much. I would argue that for this cipher, they decrease security. With more iterations, the…
On Aug. 21, 2022, 12:50 a.m.
Why isn't this completely straightforward?