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Find the result of this dual key cipher
The 2019 Stack Overflow Developer Survey Results Are InKnown Algorithm Attack: Caesar ReloadedCipher with a hidden keyBinary cryptogram from a friendStrategy for finding the key to this cipherCipher: Find the murdererFind the missing resultBFTIODFTTWKBCSCMy Unbeatable CipherDefuse the BombHow to create a code ring for 2 separate encryptions?
$begingroup$
I came up with a neat little cipher that I'm calling the dual key cipher. The basic premise is that there are two cipher keys that, when used together can decode the cipher text against a given alphabet. Here is a basic example.
Key 1: CAT
Key 2: DOG
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ISA
The result would be:
HEN
Can you solve for this one? Bonus points for showing your work.
Puzzle 1
Key 1: FISH
Key 2: DUCK
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ZUBG
Additional (off-topic) questions: Does anyone know if this type of cipher exists and if it has an official name? I've developed an algorithm that does this at a massive scale and wanted to know if anyone finds it interesting. Here is a somewhat more difficult version using my algorithm.
Puzzle 2
Key 1: Chocolate
Key 2: Strawberry
Alphabet: abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: lmqgtbeyVXPERdpbX
Hint: The space between "z A" is part of this "alphabet".
cipher pattern puzzle-creation algorithm puzzle-history
asked Apr 6 at 3:48
tremortremor
3537
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I came up with a neat little cipher that I'm calling the dual key cipher. The basic premise is that there are two cipher keys that, when used together can decode the cipher text against a given alphabet. Here is a basic example.
Key 1: CAT
Key 2: DOG
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ISA
The result would be:
HEN
Can you solve for this one? Bonus points for showing your work.
Puzzle 1
Key 1: FISH
Key 2: DUCK
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ZUBG
Additional (off-topic) questions: Does anyone know if this type of cipher exists and if it has an official name? I've developed an algorithm that does this at a massive scale and wanted to know if anyone finds it interesting. Here is a somewhat more difficult version using my algorithm.
Puzzle 2
Key 1: Chocolate
Key 2: Strawberry
Alphabet: abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: lmqgtbeyVXPERdpbX
Hint: The space between "z A" is part of this "alphabet".
cipher pattern puzzle-creation algorithm puzzle-history
asked Apr 6 at 3:48
tremortremor
3537
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I came up with a neat little cipher that I'm calling the dual key cipher. The basic premise is that there are two cipher keys that, when used together can decode the cipher text against a given alphabet. Here is a basic example.
Key 1: CAT
Key 2: DOG
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ISA
The result would be:
HEN
Can you solve for this one? Bonus points for showing your work.
Puzzle 1
Key 1: FISH
Key 2: DUCK
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ZUBG
Additional (off-topic) questions: Does anyone know if this type of cipher exists and if it has an official name? I've developed an algorithm that does this at a massive scale and wanted to know if anyone finds it interesting. Here is a somewhat more difficult version using my algorithm.
Puzzle 2
Key 1: Chocolate
Key 2: Strawberry
Alphabet: abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: lmqgtbeyVXPERdpbX
Hint: The space between "z A" is part of this "alphabet".
cipher pattern puzzle-creation algorithm puzzle-history
asked Apr 6 at 3:48
tremortremor
3537
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I came up with a neat little cipher that I'm calling the dual key cipher. The basic premise is that there are two cipher keys that, when used together can decode the cipher text against a given alphabet. Here is a basic example.
Key 1: CAT
Key 2: DOG
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ISA
The result would be:
HEN
Can you solve for this one? Bonus points for showing your work.
Puzzle 1
Key 1: FISH
Key 2: DUCK
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: ZUBG
Additional (off-topic) questions: Does anyone know if this type of cipher exists and if it has an official name? I've developed an algorithm that does this at a massive scale and wanted to know if anyone finds it interesting. Here is a somewhat more difficult version using my algorithm.
Puzzle 2
Key 1: Chocolate
Key 2: Strawberry
Alphabet: abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
Cipher Text: lmqgtbeyVXPERdpbX
Hint: The space between "z A" is part of this "alphabet".
cipher pattern puzzle-creation algorithm puzzle-history
cipher pattern puzzle-creation algorithm puzzle-history
asked Apr 6 at 3:48
tremortremor
3537
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 6 at 3:48
tremortremor
3537
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 6 at 3:48
tremortremor
3537
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 6 at 3:48
tremortremor
3537
asked Apr 6 at 3:48
tremortremor
3537
3537
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
tremor is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
The cipher is decoded by
rotating each character in the ciphertext through the "alphabet" by the index in the "alphabet" of the corresponding character in the first key minus the index of the corresponding character in the second key. If the end of one of the keys is reached, it wraps around.
The answer to the first puzzle is:
"BIRD":
Z U B G
+ F I S H
- D U C K
+2 -12 +16 -3
B I R D
The answer to the second puzzle is:
"Vanilla Ice Cream":
l m q g t b e y V X P E R d p b X
+ C h o c o l a t e C h o c o l a t
- S t r a w b e r r y S t r a w b e
-16 -12 -3 +2 -8 +10 -4 +2 -13 +5 -38 -5 -15 +14 -11 -1 +15
V a n i l l a I c e C r e a m
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
$endgroup$
$begingroup$
Bingo! And I really should call "alphabet", character set, I suppose.
$endgroup$
– tremor
Apr 6 at 14:30
add a comment |
$begingroup$
The results for both puzzles are:
BIRD
and an incomplete one:
vanilla ...
The cipher is a variant of:
Vigenere Cipher
But:
Instead of using 1 key, it uses 2 keys. The result can be found by original Vigenere Cipher by this step:
- Let Key 3 be equal to deciphering Key 2 with Passphrase of Key 1
- The result will be equal to deciphering the Cipher Text with Passphrase of Key 3
A note for the alphabets:
Instead of using simple order from A to Z, we can change the order with specified Alphabet. But deciphering this needs a computer program or some works with hands.. I'm sorry I'm too lazy to solve the Puzzle 2 because of this.. ><
answered Apr 6 at 4:14
athinathin
8,61222776
$endgroup$
$begingroup$
Worth an upvote for being close.
$endgroup$
– tremor
Apr 6 at 5:00
add a comment |
Your Answer
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
The cipher is decoded by
rotating each character in the ciphertext through the "alphabet" by the index in the "alphabet" of the corresponding character in the first key minus the index of the corresponding character in the second key. If the end of one of the keys is reached, it wraps around.
The answer to the first puzzle is:
"BIRD":
Z U B G
+ F I S H
- D U C K
+2 -12 +16 -3
B I R D
The answer to the second puzzle is:
"Vanilla Ice Cream":
l m q g t b e y V X P E R d p b X
+ C h o c o l a t e C h o c o l a t
- S t r a w b e r r y S t r a w b e
-16 -12 -3 +2 -8 +10 -4 +2 -13 +5 -38 -5 -15 +14 -11 -1 +15
V a n i l l a I c e C r e a m
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
$endgroup$
$begingroup$
Bingo! And I really should call "alphabet", character set, I suppose.
$endgroup$
– tremor
Apr 6 at 14:30
add a comment |
$begingroup$
The cipher is decoded by
rotating each character in the ciphertext through the "alphabet" by the index in the "alphabet" of the corresponding character in the first key minus the index of the corresponding character in the second key. If the end of one of the keys is reached, it wraps around.
The answer to the first puzzle is:
"BIRD":
Z U B G
+ F I S H
- D U C K
+2 -12 +16 -3
B I R D
The answer to the second puzzle is:
"Vanilla Ice Cream":
l m q g t b e y V X P E R d p b X
+ C h o c o l a t e C h o c o l a t
- S t r a w b e r r y S t r a w b e
-16 -12 -3 +2 -8 +10 -4 +2 -13 +5 -38 -5 -15 +14 -11 -1 +15
V a n i l l a I c e C r e a m
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
$endgroup$
$begingroup$
Bingo! And I really should call "alphabet", character set, I suppose.
$endgroup$
– tremor
Apr 6 at 14:30
add a comment |
$begingroup$
The cipher is decoded by
rotating each character in the ciphertext through the "alphabet" by the index in the "alphabet" of the corresponding character in the first key minus the index of the corresponding character in the second key. If the end of one of the keys is reached, it wraps around.
The answer to the first puzzle is:
"BIRD":
Z U B G
+ F I S H
- D U C K
+2 -12 +16 -3
B I R D
The answer to the second puzzle is:
"Vanilla Ice Cream":
l m q g t b e y V X P E R d p b X
+ C h o c o l a t e C h o c o l a t
- S t r a w b e r r y S t r a w b e
-16 -12 -3 +2 -8 +10 -4 +2 -13 +5 -38 -5 -15 +14 -11 -1 +15
V a n i l l a I c e C r e a m
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
$endgroup$
The cipher is decoded by
rotating each character in the ciphertext through the "alphabet" by the index in the "alphabet" of the corresponding character in the first key minus the index of the corresponding character in the second key. If the end of one of the keys is reached, it wraps around.
The answer to the first puzzle is:
"BIRD":
Z U B G
+ F I S H
- D U C K
+2 -12 +16 -3
B I R D
The answer to the second puzzle is:
"Vanilla Ice Cream":
l m q g t b e y V X P E R d p b X
+ C h o c o l a t e C h o c o l a t
- S t r a w b e r r y S t r a w b e
-16 -12 -3 +2 -8 +10 -4 +2 -13 +5 -38 -5 -15 +14 -11 -1 +15
V a n i l l a I c e C r e a m
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
answered Apr 6 at 10:58
insert_name_hereinsert_name_here
1763
1763
$begingroup$
Bingo! And I really should call "alphabet", character set, I suppose.
$endgroup$
– tremor
Apr 6 at 14:30
add a comment |
$begingroup$
Bingo! And I really should call "alphabet", character set, I suppose.
$endgroup$
– tremor
Apr 6 at 14:30
$begingroup$
Bingo! And I really should call "alphabet", character set, I suppose.
$endgroup$
– tremor
Apr 6 at 14:30
$begingroup$
Bingo! And I really should call "alphabet", character set, I suppose.
$endgroup$
– tremor
Apr 6 at 14:30
add a comment |
$begingroup$
The results for both puzzles are:
BIRD
and an incomplete one:
vanilla ...
The cipher is a variant of:
Vigenere Cipher
But:
Instead of using 1 key, it uses 2 keys. The result can be found by original Vigenere Cipher by this step:
- Let Key 3 be equal to deciphering Key 2 with Passphrase of Key 1
- The result will be equal to deciphering the Cipher Text with Passphrase of Key 3
A note for the alphabets:
Instead of using simple order from A to Z, we can change the order with specified Alphabet. But deciphering this needs a computer program or some works with hands.. I'm sorry I'm too lazy to solve the Puzzle 2 because of this.. ><
answered Apr 6 at 4:14
athinathin
8,61222776
$endgroup$
$begingroup$
Worth an upvote for being close.
$endgroup$
– tremor
Apr 6 at 5:00
add a comment |
$begingroup$
The results for both puzzles are:
BIRD
and an incomplete one:
vanilla ...
The cipher is a variant of:
Vigenere Cipher
But:
Instead of using 1 key, it uses 2 keys. The result can be found by original Vigenere Cipher by this step:
- Let Key 3 be equal to deciphering Key 2 with Passphrase of Key 1
- The result will be equal to deciphering the Cipher Text with Passphrase of Key 3
A note for the alphabets:
Instead of using simple order from A to Z, we can change the order with specified Alphabet. But deciphering this needs a computer program or some works with hands.. I'm sorry I'm too lazy to solve the Puzzle 2 because of this.. ><
answered Apr 6 at 4:14
athinathin
8,61222776
$endgroup$
$begingroup$
Worth an upvote for being close.
$endgroup$
– tremor
Apr 6 at 5:00
add a comment |
$begingroup$
The results for both puzzles are:
BIRD
and an incomplete one:
vanilla ...
The cipher is a variant of:
Vigenere Cipher
But:
Instead of using 1 key, it uses 2 keys. The result can be found by original Vigenere Cipher by this step:
- Let Key 3 be equal to deciphering Key 2 with Passphrase of Key 1
- The result will be equal to deciphering the Cipher Text with Passphrase of Key 3
A note for the alphabets:
Instead of using simple order from A to Z, we can change the order with specified Alphabet. But deciphering this needs a computer program or some works with hands.. I'm sorry I'm too lazy to solve the Puzzle 2 because of this.. ><
answered Apr 6 at 4:14
athinathin
8,61222776
$endgroup$
The results for both puzzles are:
BIRD
and an incomplete one:
vanilla ...
The cipher is a variant of:
Vigenere Cipher
But:
Instead of using 1 key, it uses 2 keys. The result can be found by original Vigenere Cipher by this step:
- Let Key 3 be equal to deciphering Key 2 with Passphrase of Key 1
- The result will be equal to deciphering the Cipher Text with Passphrase of Key 3
A note for the alphabets:
Instead of using simple order from A to Z, we can change the order with specified Alphabet. But deciphering this needs a computer program or some works with hands.. I'm sorry I'm too lazy to solve the Puzzle 2 because of this.. ><
answered Apr 6 at 4:14
athinathin
8,61222776
answered Apr 6 at 4:14
athinathin
8,61222776
answered Apr 6 at 4:14
athinathin
8,61222776
answered Apr 6 at 4:14
athinathin
8,61222776
8,61222776
$begingroup$
Worth an upvote for being close.
$endgroup$
– tremor
Apr 6 at 5:00
add a comment |
$begingroup$
Worth an upvote for being close.
$endgroup$
– tremor
Apr 6 at 5:00
$begingroup$
Worth an upvote for being close.
$endgroup$
– tremor
Apr 6 at 5:00
$begingroup$
Worth an upvote for being close.
$endgroup$
– tremor
Apr 6 at 5:00
add a comment |
tremor is a new contributor. Be nice, and check out our Code of Conduct.
tremor is a new contributor. Be nice, and check out our Code of Conduct.
tremor is a new contributor. Be nice, and check out our Code of Conduct.
tremor is a new contributor. Be nice, and check out our Code of Conduct.
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