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| From | Max <maxturv26@gmx.net> |
|---|---|
| Newsgroups | sci.crypt |
| Subject | Re: Toy cipher I made for a reddit challenge |
| Date | 2021-10-02 18:13 +0200 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <sja0fp$1mr4$1@gioia.aioe.org> (permalink) |
| References | (5 earlier) <sj03aq$puk$1@dont-email.me> <sj58uc$nlj$1@dont-email.me> <sj7r3v$avt$1@dont-email.me> <sj8fl6$b86$1@gioia.aioe.org> <JfadnZb9g-VW4MX8nZ2dnUU78QudnZ2d@giganews.com> |
On 02.10.21 17:42, Leo wrote: > On Sat, 02 Oct 2021 04:20:22 +0200, Max wrote: > > Hi all, > > Sorry about the radio silence, I've been AFK for a few days since I'm > on holiday. > >> What if this algorithm works "inside out", taking single letters from >> the middle of the alphabet and deciding to put it at the beginning oŕ at >> the end? That would also explain, that the backwards-stretch "WVU" is at >> the beginning, not at the end of the key. > > This is exactly right. For each character of the key, we take letters > from the middle of the alphabet and put it on the beginning or the > end. > > For the first level of the reddit post, each key character results in > one of these moves. Yes, it wastes a lot of key material, it was done > this way to make it obvious to people that the alphabet shifts for > each key character. > >> This looks promising. >> >> That would also mean that the full mapping is >> >> WVUPMOABCDEFGXYZNLKQRSTJIH >> >> which is also consistent with the letters we know. > > Seems right, the ciphertext I get when I encrypt the alphabet is > WVUPMOABCDEFGXYZNLKQRSTJIH. > >> So, the question remains: When will I take a letter from the right vs. >> the left side and when do I put it to the right or to the left? > > I don't think there is a distinction like this. Middle is just 26 / 2 > as an integer. It might have been better to pick right and put it on > the left and vice versa, but that is not done. > > So for each character, index 13 (0-indexed) is popped from the > alphabet and either inserted to the beginning or the end. > Oh boy, that's embarrassing. Thanks for pointing out that you always take the character at position 13. Once you see it, it's obvious (of course), but I might have digged a really deep tunnel into a completely different direction. Cheers, Max
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Toy cipher I made for a reddit challenge Leo <usenet@gkbrk.com> - 2021-09-27 21:15 +0000
Re: Toy cipher I made for a reddit challenge Richard Heathfield <rjh@cpax.org.uk> - 2021-09-27 23:12 +0100
Re: Toy cipher I made for a reddit challenge Leo <usenet@gkbrk.com> - 2021-09-27 22:32 +0000
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-09-28 00:51 +0200
Re: Toy cipher I made for a reddit challenge Leo <usenet@gkbrk.com> - 2021-09-28 04:04 -0500
Re: Toy cipher I made for a reddit challenge Richard Heathfield <rjh@cpax.org.uk> - 2021-09-28 11:29 +0100
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-09-28 21:11 +0200
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-09-29 00:00 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-09-30 23:07 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-01 22:29 +0200
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-02 04:20 +0200
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-02 12:18 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-02 13:28 +0200
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-02 16:25 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-02 17:25 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-02 12:28 +0200
Re: Toy cipher I made for a reddit challenge Leo <usenet@gkbrk.com> - 2021-10-02 10:42 -0500
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-02 18:13 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-03 12:27 +0200
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-03 18:02 +0200
Re: Toy cipher I made for a reddit challenge Stefan Claas <spam.trap.usenet@gmail.com> - 2021-10-03 09:23 -0700
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-03 21:32 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-18 08:52 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-18 19:24 +0200
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-19 00:47 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-17 17:17 +0200
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-17 20:05 +0200
Re: Toy cipher I made for a reddit challenge Leo <usenet@gkbrk.com> - 2021-10-25 17:18 -0500
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-26 20:03 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-27 19:49 +0200
Re: Toy cipher I made for a reddit challenge Leo <usenet@gkbrk.com> - 2021-10-27 17:15 -0500
Re: Toy cipher I made for a reddit challenge Max <maxturv26@gmx.net> - 2021-10-28 12:51 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-28 13:33 +0200
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-10-31 22:17 +0100
Re: Toy cipher I made for a reddit challenge Richard Heathfield <rjh@cpax.org.uk> - 2021-10-31 22:38 +0000
Re: Toy cipher I made for a reddit challenge Leo <usenet@gkbrk.com> - 2021-10-31 18:42 -0500
Re: Toy cipher I made for a reddit challenge "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-10-31 19:30 -0700
Re: Toy cipher I made for a reddit challenge wizzofozz <oxxxxxxxxxxxs@gmail.com> - 2021-11-01 21:40 +0100
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