Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > sci.crypt > #50204

Re: Toy cipher I made for a reddit challenge

From Richard Heathfield <rjh@cpax.org.uk>
Newsgroups sci.crypt
Subject Re: Toy cipher I made for a reddit challenge
Date 2021-09-27 23:12 +0100
Organization Fix this later
Message-ID <sitfla$nn9$1@dont-email.me> (permalink)
References <sitca4$518$1@dont-email.me>

Show all headers | View raw


On 27/09/2021 22:15, Leo wrote:
> Hi sci.crypt,
> 
> Around 4 months ago, I posted a small challenge [1] to /r/codes. I

Observations:

ciphertext 1143 octets, 28 unique symbols.

plaintext 1123 octets, 40 unique symbols.

The sizes are a close match, the symbol counts not so much.

ciphertext is the wrong shape for a mono:

Code  32 (  )    187 ( 16.36%)
Code  68 ( D)     47 (  4.11%)
Code  72 ( H)     46 (  4.02%)
Code  69 ( E)     45 (  3.94%)
Code  67 ( C)     44 (  3.85%)
Code  83 ( S)     44 (  3.85%)
Code  71 ( G)     43 (  3.76%)
Code  89 ( Y)     42 (  3.67%)
Code  66 ( B)     41 (  3.59%)
Code  78 ( N)     40 (  3.50%)
Code  81 ( Q)     40 (  3.50%)
Code  65 ( A)     36 (  3.15%)
Code  80 ( P)     36 (  3.15%)
Code  84 ( T)     36 (  3.15%)
Code  74 ( J)     35 (  3.06%)
Code  82 ( R)     34 (  2.97%)

plaintext for comparison:
Code  32 (  )    169 ( 15.05%)
Code 101 ( e)    107 (  9.53%)
Code  97 ( a)     82 (  7.30%)
Code 116 ( t)     74 (  6.59%)
Code 105 ( i)     72 (  6.41%)
Code 110 ( n)     72 (  6.41%)
Code 115 ( s)     69 (  6.14%)
Code 111 ( o)     57 (  5.08%)
Code 108 ( l)     55 (  4.90%)
Code 114 ( r)     53 (  4.72%)
Code 100 ( d)     41 (  3.65%)
Code 104 ( h)     35 (  3.12%)
Code  99 ( c)     27 (  2.40%)
Code 117 ( u)     25 (  2.23%)
Code 102 ( f)     21 (  1.87%)
Code 121 ( y)     20 (  1.78%)


<snip>

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

Back to sci.crypt | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

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

csiph-web