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Can Y@@ou D%ecry*pt This? (Posted on 2003-07-07) Difficulty: 4 of 5

Thi#s me$ssag@e* cont@ai%ns$ a sec@ret m%@es#*sa@$g$e, hid@d@en wi@th%in% it. Yo*%u ma#y enj@oy t#ryi@ng t#o so@lve$ this% p$uzz#l$e, may@be not.

  Submitted by DJ    
Rating: 4.4286 (21 votes)
Solution: (Hide)
I never met a huckleberry pie I didn't like.

There are five symbols that stand out: #$@*%.
These occur between letters; they do not replace letters.
The number of times that each symbol occurs are:
@=12, $=7, %=6, #=6, *=3.
The total is 34 symbols. We can guess that the hidden message contains 34 letters.

Here are some possibilities concerning these five symbols:
  • Maybe they modify the preceding letter somehow.
  • Maybe they modify the following letter somehow.
  • Maybe different signs modify different letters.
  • Maybe their positions matter, regardless of the letters around them.
Other, more complicated, schemes are possible. The above ideas give us many possibilities to wade through. The encryption scheme could have been very complicated indeed. For example, maybe the hidden message was encrypted using some cipher, and then the symbols were applied using a different cipher. We probably want to examine relatively simple schemes first.

If a symbol modifies a letter, it would change it into another letter. G might become H or F or some more distant letter. How would the message look if the symbols modified letters? The first word in the message is THI#S. If # modifies a letter, it would seem that T and H were rejected; why? Probably none of the symbols could modify T to become the first letter of the hidden message, as there are only five symbols. Maybe the symbols add or subtract a fixed amount to the modified letter, for example: @=+1, $=+2, %=+3, #=+4, *=+5. Of course, other numbers are possible. Why was H rejected, while I was accepted? Maybe the first letter of the hidden message is I+5=N, as none of the symbols could modify H to get N. Near the end of the message, we have T#O SO@LVE$. If @ modifies the second O, why didn't it modify the first O instead? So maybe we are on the wrong track.

Let's assume that a symbol modifies the following letter. A ways into the message is the word HID@D@EN. If @ modifies the second D, why didn't it modify the first D instead? So maybe we are again on the wrong track.

So, maybe @ modifies the preceding letter, while # modifies the following letter. Then we still have the problem of T#O SO@LVE$. So, either the encryption scheme is more complicated than that, or we are again on the wrong track.

How about the physical position of the symbols? The number of letters between symbols are:
3 3 4 1 4 2 2 4 4 0 2 0 2 0 1 4 1
4 2 2 4 0 3 4 3 3 3 3 3 4 1 3 1 4
That is fairly consistent. Maybe some of these numbers are slightly different because spaces and/or punctuation were counted, along with the letters. We will consider that (unlikely) complication later. If we have 5 symbols, and 5 different values of spacings between symbols (0-4), then we can encrypt 25 letters. Here, then, are the letters of our message:
3# 3$ 4@ 1* 4@ 2% 2$ 4@ 4% 0@ 2# 0* 2@ 0$ 1$ 4@ 1@
4@ 2% 2% 4* 0% 3# 4@ 3# 3@ 3# 3@ 3$ 4% 1$ 3# 1$ 4@
This could be a simple substitution cipher. The most common combination is 4@, showing up 7 times. Perhaps, then, that could represent E, the most common letter in English usage. That looks promising. E is the fifth letter of the alphabet, and 4@ may be the fifth number/symbol pair (0@, 1@, 2@, 3@, 4@). Maybe the encryption scheme is as simple as that: 0@=A, 1@=B, 2@=C, 3@=D, 4@=E.
If we put those five substitutions in, here is the message so far:
3# 3$ 4@ 1* 4@ 2% 2$ 4@ 4% 0@ 2# 0* 2@ 0$ 1$ 4@ 1@
      E     E        E     A        C        E  B
4@ 2% 2% 4* 0% 3# 4@ 3# 3@ 3# 3@ 3$ 4% 1$ 3# 1$ 4@
E                 E     D     D                 E
Then, F, K, P, U, and Z (letters 6, 11, 16, 21, and 26) are probably the 0th characters related to the other symbols. Let's guess that Z, the least common of these letters, is not represented in this puzzle. We can now experiment with the other four symbols.
To avoid a lot of trial and error, we see that @#$% are four consecutive keys on the keyboard. Let's try 0@=A, 0#=F, 0$=K, and 0%=P, on a hunch. That leaves 0*=U. Continuing thus, the whole alphabet is represented by:
0@ 1@ 2@ 3@ 4@ 0# 1# 2# 3# 4# 0$ 1$ 2$
A  B  C  D  E  F  G  H  I  J  K  L  M

3$ 4$ 0% 1% 2% 3% 4% 0* 1* 2* 3* 4* 0?
N  O  P  Q  R  S  T  U  V  W  X  Y  Z
And, by substituting letters for number/symbol pairs, we get:
3# 3$ 4@ 1* 4@ 2% 2$ 4@ 4% 0@ 2# 0* 2@ 0$ 1$ 4@ 1@
I  N  E  V  E  R  M  E  T  A  H  U  C  K  L  E  B

4@ 2% 2% 4* 0% 3# 4@ 3# 3@ 3# 3@ 3$ 4% 1$ 3# 1$ 4@
E  R  R  Y  P  I  E  I  D  I  D  N  T  L  I  K  E
And we see that this solves the puzzle. The hidden message is, "I never met a huckleberry pie I didn't like."

Finally, applying the same code to the title, we get:
4@ 0@ 3% 4*
E  A  S  Y
Indeed, after solving the puzzle, the cipher in the title is 'easy.'

Comments: ( You must be logged in to post comments.)
  Subject Author Date
answerK Sengupta2007-12-21 05:38:35
no problem.dorkdork2003-08-02 22:34:23
re(3): solutionRob2003-07-10 13:56:59
Solutionre(2): solutionderek2003-07-09 03:22:31
Questionre: solutionRob2003-07-08 18:18:34
re(2): StumpedLewis2003-07-08 09:49:33
Solutionsolutionderek2003-07-08 05:16:10
re: StumpedDJ2003-07-08 04:11:53
re: Quasi-HintsEnder2003-07-08 03:10:42
QuestionStumpedLewis2003-07-07 21:28:33
Hints/TipsQuasi-HintsDJ2003-07-07 18:03:37
Some Thoughtsre:Rob2003-07-07 17:36:15
SolutionNo Subjectheather2003-07-07 16:09:49
re: observationSanjay2003-07-07 11:34:25
Some ThoughtsSome thoughtsLewis2003-07-07 11:17:34
re: observationwink2003-07-07 11:15:33
Some Thoughtsre: observationLewis2003-07-07 11:10:40
Some ThoughtsobservationCharlie2003-07-07 11:01:40
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