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KelvinY

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Crypto challenge 17: MSC DAM HN BHP HPK YXU

Mds vdoehsgcs ykf mdwl ssxg htgsl w geeuapzr zwybskabm zwkaqmecg Eblpstz cy cwoebz ucn kbx islooza hh yftyy B wa incoerbju msc thcgc kbpv mds ywqm pvtp o oafr xoleq xnfhn vto pxab vkafehmar bj sgyfrlhbju mdsla axogtcsl Ucnn abogbkb ldcnhr rki vdchos mk ovysip wm eg mk fxycoaf mds dam mk haagx isloozag tjr ikgm eh ykf mds ikwgpg

1) 79 7A 14 08 15 4E 05 11 15 47 51 2C 1C 01 04 1C 44 57 13 5A 5D 7A 18 03 41 0F 0A 45 08 44 45 3F 59 01 00 00 00 11 36 5D 5F 7A 0A 0C 08 0A 5E 11 35 42 5F 7A 0F 0C 12 1A 44 50 0F 51 10 2E 0B 18 0F 05 08 54 12 46 10 36 1C 0A 12 4E 0B 57 41 46 44 35 17 08 41 3D 10 50 0F 51 10 33 17 4D 15 06 01 11 05 50 43 3F 0B 19 4F 4E 2A 54 00 47 10 2E 11 08 0C 42 44 5E 0F 15 44 32 1C 4D 12 0F 0A 55 4D 15 78 3B 15 0B 41 1D 11 5F 0A 19 10 3B 59 1E 09 0F 10 45 04 47 55 3E 59 1B 08 1D 05 56 04 15 5C 33 1C 1E 4D 4E 13 59 0E 46 55 7A 1F 1F 0E 19 0A 1D 41 74 5E 3E 59 1A 13 07 0A 5A 0D 50 54 7A 15 04 11 42 44 50 0F 51 10 29 17 08 04 1C 44 5E 07 15 53 35 15 09 41 0D 0B 5C 0C 54 5E 3E 55 4D 35 0B 08 5D 41 41 58 3B 0D 4D 08 1A 17 11 12 56 45 36 09 19 0E 1C 44 46 04 59 5C 7A 0D 05 0E 1D 01 11 11 54 43 29 10 02 0F 1D 44 43 04 54 54 76 59 3A 09 07 07 59 41 4C 55 2E 59 1E 14 1C 12 58 17 50 1C 7A 0A 19 00 03 14 54 05 15 5F 34 59 19 09 0B 17 54 41 59 59 3C 1C 01 04 1D 17 11 15 5D 59 34 1E 1E 4D 4E 30 59 04 15 58 3B 17 09 41 1A 0C 50 15 15 5D 35 1A 06 04 0A 44 45 09 50 5D 76 59 0C 0F 0A 44 45 09 50 10 32 1C 0C 13 1A 44 45 09 54 44 7A 1F 08 05 42 44 70 0F 51 10 35 17 4D 15 06 01 11 11 50 54 3F 0A 19 00 02 44 45 09 50 43 3F 59 1A 0E 1C 00 42 41 54 40 2A 1C 0C 13 54 44 13 2C 4C 10 34 18 00 04 4E 0D 42 41 7A 4A 23 14 0C 0F 0A 0D 50 12 19 10 11 10 03 06 4E 0B 57 41 7E 59 34 1E 1E 5B 4E 28 5E 0E 5E 10 2F 09 02 0F 4E 09 48 41 42 5F 28 12 1E 4D 4E 1D 54 41 78 59 3D 11 19 18 42 44 50 0F 51 10 3E 1C 1E 11 0F 0D 43 40 17 10 14 16 19 09 07 0A 56 41 57 55 29 10 09 04 4E 16 54 0C 54 59 34 0A 43 41 3C 0B 44 0F 51 10 2E 11 08 41 0A 01 52 00 4C 10 15 1F 4D 15 06 05 45 41 56 5F 36 16 1E 12 0F 08 11 16 47 55 39 12 41 41 0C 0B 44 0F 51 5C 3F 0A 1E 41 0F 0A 55 41 57 51 28 1C 4D 35 06 01 11 0D 5A 5E 3F 59 0C 0F 0A 44 5D 04 43 55 36 59 1E 00 00 00 42 41 46 44 28 1C 19 02 06 44 57 00 47 10 3B 0E 0C 18 40

2) 67 32 1C 03 4D 4E 0D 5F 41 41 58 3F 59 0E 0E 1B 16 42 04 15 5F 3C 59 05 14 03 05 5F 41 50 46 3F 17 19 12 42 44 58 15 15 52 3F 1A 02 0C 0B 17 11 0F 50 53 3F 0A 1E 00 1C 1D 11 07 5A 42 7A 16 03 04 4E 14 54 0E 45 5C 3F 59 19 0E 4E 00 58 12 46 5F 36 0F 08 41 1A 0C 54 41 45 5F 36 10 19 08 0D 05 5D 41 57 5F 34 1D 1E 41 19 0C 58 02 5D 10 32 18 1B 04 4E 07 5E 0F 5B 55 39 0D 08 05 4E 10 59 04 58 10 2D 10 19 09 4E 05 5F 0E 41 58 3F 0B 41 41 0F 0A 55 41 41 5F 7A 18 1E 12 1B 09 54 41 54 5D 35 17 0A 41 1A 0C 54 41 45 5F 2D 1C 1F 12 4E 0B 57 41 41 58 3F 59 08 00 1C 10 59 4D 15 44 32 1C 4D 12 0B 14 50 13 54 44 3F 59 0C 0F 0A 44 54 10 40 51 36 59 1E 15 0F 10 58 0E 5B 10 2E 16 4D 16 06 0D 52 09 15 44 32 1C 4D 0D 0F 13 42 41 5A 56 7A 17 0C 15 1B 16 54 41 54 5E 3E 59 02 07 4E 0A 50 15 40 42 3F 5E 1E 41 29 0B 55 41 50 5E 2E 10 19 0D 0B 44 45 09 50 5D 76 59 0C 41 0A 01 52 04 5B 44 7A 0B 08 12 1E 01 52 15 15 44 35 59 19 09 0B 44 5E 11 5C 5E 33 16 03 12 4E 0B 57 41 58 51 34 12 04 0F 0A 44 43 04 44 45 33 0B 08 12 4E 10 59 00 41 10 2E 11 08 18 4E 17 59 0E 40 5C 3E 59 09 04 0D 08 50 13 50 10 2E 11 08 41 0D 05 44 12 50 43 7A 0E 05 08 0D 0C 11 08 58 40 3F 15 4D 15 06 01 5C 41 41 5F 7A 0D 05 04 4E 17 54 11 54 42 3B 0D 04 0E 00 4A
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Peter Kwan
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Just before I start, would like to confirm, are the spaces in the instruction represents the actual spaces between words? Since I found an "hh", which does not make a English word, and three single letters "B", "o", "w".

Thanks.
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pkwan,

There's probably more than one alphabet involved :7)


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KelvinY

ASKER

pkwan,

The spaces in the title and instructions (first paragraph) are real breaks between words, but you would be well advised to heed RobinD.
Thanks a lot, RobinD

I have just decrypted the message. But don't quite understand the message.:)
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ASKER

Some clues for this challenge may be gleaned from the companion puzzle at https://www.experts-exchange.com/questions/22056736/Crypto-Challenge-17-Bonus-Points.html.
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ASKER

With the next crypto challenge about to come out I think some more help is needed on this one. The cipher used is an XOR or Vernam cipher, with a keyword not longer than ten characters.
ASKER CERTIFIED SOLUTION
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Peter Kwan
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Great work, pkwan. The points are yours and I will assign them after leaving the question open for a short while longer. You should now be a in a good position to get the bonus points from the related challenge whose link appears above.

The two texts that I chose for this challenge were the poem "Ozymandias" by Shelley, and the opening sentence of the United States Declaration of Independence.

The puzzle title and instructions were encrypted using a Vigenere cipher with a keyword of TWO.

The current points totals after this challenge are as follows:

maramom    1925
RobinD    825
Infinity08    675
pkwan   500
danrosenthal   125
NicoLaan    100
Galisteo8    75
JR2003    50
snoyes_jw    50