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Can you translate it back?

math2001 profile image Mathieu PATUREL Originally published at ・1 min read

I've got a little challenge for you.

ib jb eikybfi eite hvim

Can you translate this encrypted text back to its original form?

If you do, send me an email at explaining how you found it, and I'll add you to the glorious list of people who found the solution 😄 (see below).


I guarantee you the original message:

  • contains only lower case ASCII letters (abcdefghijklmnopqrstuvwxyz)
  • has the same spaces as in the encrypted message. So you know that the first word will have 2 letters, the second one as well, the third one 7, etc...
  • can only translated to one string (the one I gave you)

They found it!

The glorious and amazing people who had a crack and found the secret message!

The list is over here.


Hey hey. Smart one, looking at the right place, 😄

I'll be posting the original message, as well as an explanation about how it worked on my blog next week, that is the Friday 1 June 2018.

Discussion (4)

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alephnaught2tog profile image
M. Shemayev

Are we assuming a bijective mapping? I would assume not.

math2001 profile image
Mathieu PATUREL Author

Na, we aren't assuming a bijective mapping (I had to google that one :laugh:).

ben profile image
Ben Halpern

Explain like I'm five?

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math2001 profile image
Mathieu PATUREL Author

In the case of a bijective mapping, every letter is always translated to the same letter. In this case, it isn't (but there's still a logic though).