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unbeclouded

fluctuantesque

innovation

vesuvite

porphyrous

wardenclyffe

trophocyte

clavicymbal

womanizer

unprincelike

wheesht

tetigerim

thang

vulneraveritque

refallow

ueniebamque

unmouthpieced

windsail


Caesar cipher

Caesar cipher, is one of the simplest and most widely known encryption techniques. The transformation can be represented by aligning two alphabets, the cipher alphabet is the plain alphabet rotated left or right by some number of positions.

When encrypting, a person looks up each letter of the message in the 'plain' line and writes down the corresponding letter in the 'cipher' line. Deciphering is done in reverse.
The encryption can also be represented using modular arithmetic by first transforming the letters into numbers, according to the scheme, A = 0, B = 1,..., Z = 25. Encryption of a letter x by a shift n can be described mathematically as

Plaintext: baning
cipher variations:
cbojoh dcpkpi edqlqj fermrk gfsnsl
hgtotm ihupun jivqvo kjwrwp lkxsxq
mlytyr nmzuzs onavat pobwbu qpcxcv
rqdydw srezex tsfafy utgbgz vuhcha
wvidib xwjejc yxkfkd zylgle azmhmf

Decryption is performed similarly,

(There are different definitions for the modulo operation. In the above, the result is in the range 0...25. I.e., if x+n or x-n are not in the range 0...25, we have to subtract or add 26.)
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Atbash Cipher

Atbash is an ancient encryption system created in the Middle East. It was originally used in the Hebrew language.
The Atbash cipher is a simple substitution cipher that relies on transposing all the letters in the alphabet such that the resulting alphabet is backwards.
The first letter is replaced with the last letter, the second with the second-last, and so on.
An example plaintext to ciphertext using Atbash:
Plain: baning
Cipher: yzmrmt

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Baconian Cipher

To encode a message, each letter of the plaintext is replaced by a group of five of the letters 'A' or 'B'. This replacement is done according to the alphabet of the Baconian cipher, shown below.
a   AAAAA   g    AABBA     m    ABABB   s    BAAAB     y    BABBA
b   AAAAB   h    AABBB     n    ABBAA   t    BAABA     z    BABBB
c   AAABA   i    ABAAA     o    ABBAB   u    BAABB 
d   AAABB   j    BBBAA     p    ABBBA   v    BBBAB
e   AABAA   k    ABAAB     q    ABBBB   w    BABAA
f   AABAB   l    ABABA     r    BAAAA   x    BABAB

Plain: baning
Cipher: AAAAB AAAAA ABBAA ABAAA ABBAA AABBA

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Affine Cipher
In the affine cipher the letters of an alphabet of size m are first mapped to the integers in the range 0..m - 1. It then uses modular arithmetic to transform the integer that each plaintext letter corresponds to into another integer that correspond to a ciphertext letter. The encryption function for a single letter is

where modulus m is the size of the alphabet and a and b are the key of the cipher. The value a must be chosen such that a and m are coprime.
Considering the specific case of encrypting messages in English (i.e. m = 26), there are a total of 286 non-trivial affine ciphers, not counting the 26 trivial Caesar ciphers. This number comes from the fact there are 12 numbers that are coprime with 26 that are less than 26 (these are the possible values of a). Each value of a can have 26 different addition shifts (the b value) ; therefore, there are 12*26 or 312 possible keys.
Plaintext: baning
cipher variations:
cbojohebozotgbopofiboforkbovodmbolopqboronsbohoz
uboxolwbonoxybodojabotovdcpkpifcpapuhcpqpgjcpgps
lcpwpencpmpqrcpspotcpipavcpypmxcpopyzcpepkbcpupw
edqlqjgdqbqvidqrqhkdqhqtmdqxqfodqnqrsdqtqpudqjqb
wdqzqnydqpqzadqfqlcdqvqxfermrkhercrwjersrileriru
neryrgperorsterurqverkrcxerarozerqrabergrmderwry
gfsnslifsdsxkfstsjmfsjsvofszshqfspstufsvsrwfslsd
yfsbspafsrsbcfshsnefsxszhgtotmjgtetylgtutkngtktw
pgtatirgtqtuvgtwtsxgtmtezgtctqbgtstcdgtitofgtyta
ihupunkhufuzmhuvulohuluxqhubujshuruvwhuxutyhunuf
ahudurchutudehujupghuzubjivqvolivgvanivwvmpivmvy
rivcvktivsvwxivyvuzivovgbivevsdivuvefivkvqhivavc
kjwrwpmjwhwbojwxwnqjwnwzsjwdwlujwtwxyjwzwvajwpwh
cjwfwtejwvwfgjwlwrijwbwdlkxsxqnkxixcpkxyxorkxoxa
tkxexmvkxuxyzkxaxwbkxqxidkxgxufkxwxghkxmxsjkxcxe
mlytyrolyjydqlyzypslypybulyfynwlyvyzalybyxclyryj
elyhyvglyxyhilynytklydyfnmzuzspmzkzermzazqtmzqzc
vmzgzoxmzwzabmzczydmzszkfmzizwhmzyzijmzozulmzezg
onavatqnalafsnabarunaradwnahapynaxabcnadazenatal
gnajaxinazajknapavmnafahpobwburobmbgtobcbsvobsbe
xobibqzobybcdobebafobubmhobkbyjobabklobqbwnobgbi
qpcxcvspcnchupcdctwpctcfypcjcrapczcdepcfcbgpcvcn
ipclczkpcbclmpcrcxopchcjrqdydwtqdodivqdeduxqdudg
zqdkdsbqdadefqdgdchqdwdojqdmdalqdcdmnqdsdypqdidk
srezexurepejwrefevyrevehareletcrebefgrehedirexep
krenebmredenoretezqrejeltsfafyvsfqfkxsfgfwzsfwfi
bsfmfudsfcfghsfifejsfyfqlsfofcnsfefopsfufarsfkfm
utgbgzwtgrglytghgxatgxgjctgngvetgdghitgjgfktgzgr
mtgpgdotgfgpqtgvgbstglgnvuhchaxuhshmzuhihybuhyhk
duhohwfuhehijuhkhgluhahsnuhqhepuhghqruhwhctuhmho
wvidibyvitinavijizcvizilevipixgvifijkvilihmvibit
ovirifqvihirsvixiduvinipxwjejczwjujobwjkjadwjajm
fwjqjyhwjgjklwjmjinwjcjupwjsjgrwjijstwjyjevwjojq
yxkfkdaxkvkpcxklkbexkbkngxkrkzixkhklmxknkjoxkdkv
qxktkhsxkjktuxkzkfwxkpkrzylglebylwlqdylmlcfylclo
hylslajylilmnylolkpylelwrylulitylkluvylalgxylqls
azmhmfczmxmrezmnmdgzmdmpizmtmbkzmjmnozmpmlqzmfmx
szmvmjuzmlmvwzmbmhyzmrmtbaningdanynsfanonehanenq
janunclanknopanqnmrangnytanwnkvanmnwxancnizansnu

The decryption function is

where a - 1 is the modular multiplicative inverse of a modulo m. I.e., it satisfies the equation

The multiplicative inverse of a only exists if a and m are coprime. Hence without the restriction on a decryption might not be possible. It can be shown as follows that decryption function is the inverse of the encryption function,

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ROT13 Cipher
Applying ROT13 to a piece of text merely requires examining its alphabetic characters and replacing each one by the letter 13 places further along in the alphabet, wrapping back to the beginning if necessary. A becomes N, B becomes O, and so on up to M, which becomes Z, then the sequence continues at the beginning of the alphabet: N becomes A, O becomes B, and so on to Z, which becomes M. Only those letters which occur in the English alphabet are affected; numbers, symbols, whitespace, and all other characters are left unchanged. Because there are 26 letters in the English alphabet and 26 = 2 * 13, the ROT13 function is its own inverse:

ROT13(ROT13(x)) = x for any basic Latin-alphabet text x


An example plaintext to ciphertext using ROT13:

Plain: baning
Cipher: onavat

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Polybius Square

A Polybius Square is a table that allows someone to translate letters into numbers. To give a small level of encryption, this table can be randomized and shared with the recipient. In order to fit the 26 letters of the alphabet into the 25 spots created by the table, the letters i and j are usually combined.
1 2 3 4 5
1 A B C D E
2 F G H I/J K
3 L M N O P
4 Q R S T U
5 V W X Y Z

Basic Form:
Plain: baning
Cipher: 211133423322

Extended Methods:
Method #1

Plaintext: baning
method variations:
gfsosmmlxtxrrqcycwwvhdhb

Method #2
Bifid cipher
The message is converted to its coordinates in the usual manner, but they are written vertically beneath:
b a n i n g 
2 1 3 4 3 2 
1 1 3 2 3 2 
They are then read out in rows:
213432113232
Then divided up into pairs again, and the pairs turned back into letters using the square:
Plain: baning
Cipher: bshahh

Read more ...
Method #3

Plaintext: baning
method variations:
alsmhg lsmhga smhgal
mhgals hgalsm galsmh

Read more ...[RUS] , [EN]

 

Permutation Cipher
In classical cryptography, a permutation cipher is a transposition cipher in which the key is a permutation. To apply a cipher, a random permutation of size E is generated (the larger the value of E the more secure the cipher). The plaintext is then broken into segments of size E and the letters within that segment are permuted according to this key.
In theory, any transposition cipher can be viewed as a permutation cipher where E is equal to the length of the plaintext; this is too cumbersome a generalisation to use in actual practice, however.
The idea behind a permutation cipher is to keep the plaintext characters unchanged, butalter their positions by rearrangement using a permutation
This cipher is defined as:
Let m be a positive integer, and K consist of all permutations of {1,...,m}
For a key (permutation) , define:
The encryption function
The decryption function
A small example, assuming m = 6, and the key is the permutation :

The first row is the value of i, and the second row is the corresponding value of (i)
The inverse permutation, is constructed by interchanging the two rows, andrearranging the columns so that the first row is in increasing order, Therefore, is:

Total variation formula:

e = 2,718281828 , n - plaintext length

Plaintext: baning

all 720 cipher variations:
baning banign bannig banngi bangni bangin bainng baingn bainng baingn baignn
baignn baning banign bannig banngi bangni bangin baginn baginn bagnin bagnni
bagnni bagnin bnaing bnaign bnanig bnangi bnagni bnagin bniang bniagn bninag
bninga bnigna bnigan bnniag bnniga bnnaig bnnagi bnngai bnngia bngina bngian
bngnia bngnai bngani bngain binang binagn binnag binnga bingna bingan bianng
biangn bianng biangn biagnn biagnn binang binagn binnag binnga bingna bingan
bigann bigann bignan bignna bignna bignan bnniag bnniga bnnaig bnnagi bnngai
bnngia bninag bninga bniang bniagn bnigan bnigna bnaing bnaign bnanig bnangi
bnagni bnagin bngian bngina bngain bngani bngnai bngnia bgnina bgnian bgnnia
bgnnai bgnani bgnain bginna bginan bginna bginan bgiann bgiann bgnina bgnian
bgnnia bgnnai bgnani bgnain bgainn bgainn bganin bganni bganni bganin abning
abnign abnnig abnngi abngni abngin abinng abingn abinng abingn abignn abignn
abning abnign abnnig abnngi abngni abngin abginn abginn abgnin abgnni abgnni
abgnin anbing anbign anbnig anbngi anbgni anbgin anibng anibgn aninbg aningb
anignb anigbn annibg annigb annbig annbgi anngbi anngib anginb angibn angnib
angnbi angbni angbin ainbng ainbgn ainnbg ainngb aingnb aingbn aibnng aibngn
aibnng aibngn aibgnn aibgnn ainbng ainbgn ainnbg ainngb aingnb aingbn aigbnn
aigbnn aignbn aignnb aignnb aignbn annibg annigb annbig annbgi anngbi anngib
aninbg aningb anibng anibgn anigbn anignb anbing anbign anbnig anbngi anbgni
anbgin angibn anginb angbin angbni angnbi angnib agninb agnibn agnnib agnnbi
agnbni agnbin aginnb aginbn aginnb aginbn agibnn agibnn agninb agnibn agnnib
agnnbi agnbni agnbin agbinn agbinn agbnin agbnni agbnni agbnin nabing nabign
nabnig nabngi nabgni nabgin naibng naibgn nainbg naingb naignb naigbn nanibg
nanigb nanbig nanbgi nangbi nangib naginb nagibn nagnib nagnbi nagbni nagbin
nbaing nbaign nbanig nbangi nbagni nbagin nbiang nbiagn nbinag nbinga nbigna
nbigan nbniag nbniga nbnaig nbnagi nbngai nbngia nbgina nbgian nbgnia nbgnai
nbgani nbgain nibang nibagn nibnag nibnga nibgna nibgan niabng niabgn nianbg
niangb niagnb niagbn ninabg ninagb ninbag ninbga ningba ningab niganb nigabn
nignab nignba nigbna nigban nnbiag nnbiga nnbaig nnbagi nnbgai nnbgia nnibag
nnibga nniabg nniagb nnigab nnigba nnaibg nnaigb nnabig nnabgi nnagbi nnagib
nngiab nngiba nngaib nngabi nngbai nngbia ngbina ngbian ngbnia ngbnai ngbani
ngbain ngibna ngiban nginba nginab ngianb ngiabn ngniba ngniab ngnbia ngnbai
ngnabi ngnaib ngainb ngaibn nganib nganbi ngabni ngabin ianbng ianbgn iannbg
ianngb iangnb iangbn iabnng iabngn iabnng iabngn iabgnn iabgnn ianbng ianbgn
iannbg ianngb iangnb iangbn iagbnn iagbnn iagnbn iagnnb iagnnb iagnbn inabng
inabgn inanbg inangb inagnb inagbn inbang inbagn inbnag inbnga inbgna inbgan
innbag innbga innabg innagb inngab inngba ingbna ingban ingnba ingnab inganb
ingabn ibnang ibnagn ibnnag ibnnga ibngna ibngan ibanng ibangn ibanng ibangn
ibagnn ibagnn ibnang ibnagn ibnnag ibnnga ibngna ibngan ibgann ibgann ibgnan
ibgnna ibgnna ibgnan innbag innbga innabg innagb inngab inngba inbnag inbnga
inbang inbagn inbgan inbgna inabng inabgn inanbg inangb inagnb inagbn ingban
ingbna ingabn inganb ingnab ingnba ignbna ignban ignnba ignnab ignanb ignabn
igbnna igbnan igbnna igbnan igbann igbann ignbna ignban ignnba ignnab ignanb
ignabn igabnn igabnn iganbn igannb igannb iganbn nanibg nanigb nanbig nanbgi
nangbi nangib nainbg naingb naibng naibgn naigbn naignb nabing nabign nabnig
nabngi nabgni nabgin nagibn naginb nagbin nagbni nagnbi nagnib nnaibg nnaigb
nnabig nnabgi nnagbi nnagib nniabg nniagb nnibag nnibga nnigba nnigab nnbiag
nnbiga nnbaig nnbagi nnbgai nnbgia nngiba nngiab nngbia nngbai nngabi nngaib
ninabg ninagb ninbag ninbga ningba ningab nianbg niangb niabng niabgn niagbn
niagnb nibang nibagn nibnag nibnga nibgna nibgan nigabn niganb nigban nigbna
nignba nignab nbniag nbniga nbnaig nbnagi nbngai nbngia nbinag nbinga nbiang
nbiagn nbigan nbigna nbaing nbaign nbanig nbangi nbagni nbagin nbgian nbgina
nbgain nbgani nbgnai nbgnia ngniba ngniab ngnbia ngnbai ngnabi ngnaib nginba
nginab ngibna ngiban ngiabn ngianb ngbina ngbian ngbnia ngbnai ngbani ngbain
ngaibn ngainb ngabin ngabni nganbi nganib ganinb ganibn gannib gannbi ganbni
ganbin gainnb gainbn gainnb gainbn gaibnn gaibnn ganinb ganibn gannib gannbi
ganbni ganbin gabinn gabinn gabnin gabnni gabnni gabnin gnainb gnaibn gnanib
gnanbi gnabni gnabin gnianb gniabn gninab gninba gnibna gniban gnniab gnniba
gnnaib gnnabi gnnbai gnnbia gnbina gnbian gnbnia gnbnai gnbani gnbain ginanb
ginabn ginnab ginnba ginbna ginban giannb gianbn giannb gianbn giabnn giabnn
ginanb ginabn ginnab ginnba ginbna ginban gibann gibann gibnan gibnna gibnna
gibnan gnniab gnniba gnnaib gnnabi gnnbai gnnbia gninab gninba gnianb gniabn
gniban gnibna gnainb gnaibn gnanib gnanbi gnabni gnabin gnbian gnbina gnbain
gnbani gnbnai gnbnia gbnina gbnian gbnnia gbnnai gbnani gbnain gbinna gbinan
gbinna gbinan gbiann gbiann gbnina gbnian gbnnia gbnnai gbnani gbnain gbainn
gbainn gbanin gbanni gbanni gbanin

Read more ...[1] , [2] , [3]

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