Hello.
This is an example of a proposed use of "keys" of the cipher 340.
Split the cipher into two parts
line 1 to line 10 and line 11to line 20
1 to 10

HER>ÐÌ^VPËI²LTG±Ä
NÐ+B¢·OºDWy•<»KÆ£
BŸ„ÃM+uZGW¢£L·¤HJ
SÐн^̾»V´ÐO++RK±
¸¼M+¤ÔÊÄIµFP+ˆ³Ë/
оR^FÌO-»ÄCËF>±D¢
·µ+KѺƒ±uÃXGV•¤LI
¢G±JÆÊ·O+¸Ny¤+¹L¼
Ä<M+Â+ZR±FBßA°³K
-¤ÌuV+^J+Oн<FBŸ-

11 to 20

u+R/µÔEIDyBÐÂTMKO
±<ÃÌRJI»µT³M•+ˆBF
¤°¼SŸ·+NIµFB⃾R
ÌGFN^Ƶ±³Â•ÃV³Ô++
ŸBX²»„³¼CE>VuZµ-+
IÕ´¤BK¢OÐ^•ÆMÑG±
RÃT+L²°C<+FÌWBI£L
++£WC¤WÃPOSHT/¢£Ð
IFËÄW<½ÔB¸yOB»-CÃ
>MDHNÐËS¤ZO¾AIKƒ+

apply the "keys"
1 to 10

DECEMBERJULYAUGUS

11 to 20

TSEPTEMBEROCTOBER

I did the test with Jarvle’s program, without success of course.
Result
part one

ISMOSTAMPALTHEFIN
GALLTHISTHEIRABLY
MOTHEMICCHUSHOURF
RACISTEDUPTONTINK
ITOJOSEONESANDCAN
BEMARTIALLOWDYWIN
FULDWILLDRANDMUNE
CHATTHEVERYRATENF
CNOJUMPXTJENSPROP
OWSIRMAGESTORJJYZ

part two

UHGCLOTLIKINRSEMO
UTCPREANAPEDCLASP
ECLECONSINSUNFORT
LICENTSMOTHESERVI
CEHAVEGODOFJUDDKI
TORIESESBYSTERWWW
ROCKSLIGHISCHILAU
GHALOTOFFOFANDSAY
TOUGHHERSANDDANDP
ANINALMSTARTBYPLI

Some interesting words appear, but, certainly, coincidence, nothing relevant.

Just sharing ideas
Marcelo

I found the first part interesting when we put S in place of C in December on the key.
line 1 to 10

DESEMBERJULYAUGUS

result

ZPOTGETDIEDWILLBE
WOWORGSCAMENEXFMY
PLAYINGTIMSSINGIN
TOALLERALTHYOUARD
WICKASAFFICTOTHER
PROTBESTICSANDPPL
EYWHOSHEBISTURGOW
ANDBUDDFFFORMUSOU
TACKINGPMTHEPLATT
HINGINTOFCHRETMVS

I found the first part interesting when we put S in place of C in December on the key.
line 1 to 10

DESEMBERJULYAUGUS

result

ZPOTGETDIEDWILLBE
WOWORGSCAMENEXFMY
PLAYINGTIMSSINGIN
TOALLERALTHYOUARD
WICKASAFFICTOTHER
PROTBESTICSANDPPL
EYWHOSHEBISTURGOW
ANDBUDDFFFORMUSOU
TACKINGPMTHEPLATT
HINGINTOFCHRETMVS

Try the same key, but in Norwegian.
The "Des" instead of Dec could be a clue that the norwegian spelling version should be used as key:

Here is the norwegian version (letter changes highlighted in blue) versus your english version:
DESEMBERJULIAUGUSTSEPTEMBEROKTOBER
DECEMBERJULYAUGUSTSEPTEMBEROCTOBER

Try the same key, but in Norwegian.

Interesting!! I’ll try something around this.
Thanks for sharing the idea !!
Marcelo

Hello.
At the end of the year, one (another) observation I made.
It is not related to the "dripping pen" card , but to the number 17 and zodiac of course. In the message that Z wrote on the door of the car we have 17 numerical symbols (Ceasar Key who knows), I am putting together a list of "keys" with 17 of lenght or multiples of 17.

Vallejo
12-20-68
7-4-69
Sept 27-69-6:30
by knife

numbers

12206874692769630

Marcelo

Try the same key, but in Norwegian.

Interesting!! I’ll try something around this.
Thanks for sharing the idea !!
Marcelo

Hi Marclean

Did you try the same key, but in Norwegian ? and if so, how did it turn out ?

TF

Did you try the same key, but in Norwegian ? and if so, how did it turn out ?

Yep

I did a test, roughly how I will be going on vacation and I will go to the beach in the next few days, I am giving time in the tests.
I did not test (yet) with the cipher in "mirror", inverted columns, rotations etc. But I will do further and post here.
Thanks again for your attention.

Score: 15626.31 Ioc: 0.04915
Ngrams: 161 PC-cycles: 0

Vigenère keyword: DESEMBERJULIAUGUSTSEPTEMBEROKTOBER

SJOBTOPUZSFEAKULD
ANSTBEGANDPASTORE
FEROGVZHRAJNAORBR
VNBPALAGHPRIDIFLO
WNASLIKEHEWAWALSO
MUCEOLGLDENCOREND
FUELIANOUYSSLQRGY
BIBUCKWRSIFTEITWA
SHASYVUPWNXKINGXX
TFLOSSHISBRUSTHEV
ASOCMIJZIJXXKKMVA
MTOANFEGUNDIRITEQ
UIZKWHSCHEWASALSO
WIDEARMENTWISDISF
FELIVINASTUDDESSE
XAGREEDTOOFACETWO
DOMSOLIKCCWHUOKBI
DERFITIREBALLSTRO
NDURIKASZFSKINGHA
MANGABANTHECOCONF

Marcelo

This may be really stupid and may have been spoke of here already over & over.
So I have no clue about ciphers whatsoever, but isn’t Des some type of cipher or something back in the 60’s
created by IBM
*Edit, so sorry if this is not new discussions

This may be really stupid and may have been spoke of here already over & over.
So I have no clue about ciphers whatsoever, but isn’t Des some type of cipher or something back in the 60’s
created by IBM
*Edit, so sorry if this is not new discussions

Interesting observation, DES (Data Encryption Standard) Key, but from what I researched, it wasn’t until the early 1970s that it started to develop, unless mistakenly. It may be that this was previously studied, sixties, I will research more about. I believe that here in our community we have people who know this story better than me.
thanks Mr Sandiland

ps : wikipedia "des" link : https://en.wikipedia.org/wiki/Data_Encryption_Standard

Marclean thanks. I’m not all that observant or computer techy (if that’s even a real word) lol but I do google a lot. And I don’t know how to share what I read via link for others to read. Oh, btw it’s Mrs Sandiland lol lol

Marclean probably made some grammar mistakes in his Vigenère keyword: DESEMBERJULIAUGUSTSEPTEMBEROKTOBER should be DECEMBERJULYAUGUSTSEPTEMBEROCTOBER.

Klaus has a recent DES challenge and description at http://scienceblogs.de/klausis-krypto-k … ld-diffie/

@Marclean, cool The Doors t-shirt!

And I don’t know how to share what I read via link for others to read. Oh, btw it’s Mrs Sandiland lol lol

U can share clicking ins "URL" and pasting the link between
MRS sandiland

Marclean probably made some grammar mistakes in his Vigenère keyword: DESEMBERJULIAUGUSTSEPTEMBEROKTOBER should be DECEMBERJULYAUGUSTSEPTEMBEROCTOBER.

Mr Jarlve, this was a test of the Norwegian months suggested by Mr Theforeigner.

Klaus has a recent DES challenge and description at http://scienceblogs.de/klausis-krypto-k … ld-diffie/

Wow, that sounds interesting to me !!

@Marclean, cool The Doors t-shirt!

Yep, Break on through to the other side!!

Ok thank you Marclean

Hello,
I hope everyone is well, safe and healthy and at home, taking care of themselves and those they love.
Well, nothing new (or surprising) to share, just an observation.
I noticed that on the halloween card there is the message
"From Your Secret Pal"
which, without space, has 17 letters.
It is certainly a coincidence, but, I think it is worth testing in decoding methods of the 340.

much peace and health to all !!!

FROMYOURSECRETPAL

FROMYOURSECRETPAL

keyword either enigma or jason