Write the plaintext row-by-row over m columns. This is the case for the Rail Fence Cipher, a very interesting way of delivering messages. Combining Monoalphabetic and Simple Transposition Ciphers. . In a transposition cipher, the order of the alphabets is mixed up or we can say rearrange to obtain the cipher-text or encrypted text. ; In 1919, a variant of the one-time pad, the Vernam cipher, was patented by Gilbert S Vernam. A . Rail Fence Cipher Transposition Technique AIM: To implement a program for encryption and decryption using rail fence transposition technique. Pigpen Cipher is used extensively in Freemason documentation. Encoding. | Affine cipher About Rail Fence Cipher. Rail fence Simple - Encryption implementation using C program. Continuing to fill the top row you get the pattern below. B . We’ll still be sending normal-looking letters as our message, but it’ll be so scrambled up that anyone who doesn’t know the code won’t know what it says. The one-time pad is theoretically 100% secure. Discussion In the rail fence cipher, the plaintext is written downwards and diagonally on successive "rails" of an imaginary fence, then moving up when we reach the bottom rail. The rail fence cipher is instead of breaking things into evens and odds as we did in exercise 18, they are broken up by threes, fours or something larger. | Also turn the plaintext into digraphs (or trigraphs) and each of these into a column vector. . The encryption key is a number of rails. However, it is not particularly secure, since there are a limited number of usable keys, especially for short messages (for there to be enough movement of letters, the length of the message needs to be at … For the first two questions, use the given alphabet to encrypt the message using the Rail Fence Cipher. . For instance, in the case of threes, the string secret message would be broken into three groups. The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher.A transposition cipher involves the rearranging of the letters in the plain text to encrypt the message. For those who don't know what rail fence cipher is, it is basically a method of writing plain text in a way it creates linear pattern in a spiral way. In the rail fence cipher, the plain text is written downwards and diagonally on successive “rails” of an imaginary fence, then moving up when we reach the bottom rail. | One-time pad | Double transposition Features. B . . The second stage in the decryption process. They are treated in exactly the same way as any other letter. You can read more about the rail-fence cipher on this page. In a rail fence cipher, the plaintext letters are written diagonally in a up-down pattern from left to right. Hill cipher is a polygraphic substitution cipher based on linear algebra.Each letter is represented by a number modulo 26. This online calculator helps to decode message encrypted using rail fence cipher by listing variants of decoded text for different number of "rails" person_outlineTimurschedule 2017-06-01 09:00:10. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Travel theme. For the rail fence cipher, the plaintext is written diagonally downwards on successive "rails" of an imaginary fence, then moving up when the bottom rail is reached. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. It also has the security of a key to make it a little bit harder to break. The simplest Rail Fence Cipher, where each letter is written in a zigzag pattern across the page. Introduction Note that at the end of the message we have inserted two "X"s. These are called nulls, and act as placeholders. In the rail fence cipher, the plaintext is written downwards and diagonally on successive "rails" of an imaginary fence, then moving up when we get to the bottom. Below is an example. 2. It can encrypt any characters, including spaces, but security is increased if all characters are of equal caps. DURGESH. In the rail fence cipher, the plaintext is written downwards on successive "rails" of an imaginary fence, then moving up when we get to the bottom. It is also known as zigzag cipher. Newer Post Older Post Home. Here you will get rail fence cipher program in C and C++ for encryption and decryption. Q . | Atbash cipher O . The first group is … The reason it is called a rail fence is because letters of a message are rearranged by lines that can look like rails of a fence. See also: Code-Breaking overview Here Key = 3. Input : Zig-Zag Level : Brute-Force until Level : Encrypt Decrypt Brute-Force Zig-Zag Level. In the rail fence cipher, the plaintext is written downwards and diagonally on successive "rails" of an imaginary fence, then moving up when we reach the bottom rail. Continue like this across the row, and start the next row when you reach the end. Colour is used to emphasise where spaces are, against the blank squares of the table. Rail Fence Cipher is a transposition cipher that encrypts by writing a text in zigzag and then read from left to right. It is a transposition cipher that follows a simple rule for mixing up the characters in the plaintext to form the ciphertext. One way to also make the encryption a little bit more secure, is to keep the spaces as characters, and include them in the encryption table. It was already used by the ancient Greeks. Method. The Rail Fence Cipher with a key of 3. For the plaintext we used above, "defend the east wall", with a key of 3, we get the encryption process shown below. From this we can now read the plaintext off following the diagonals to get "they are attacking from the north". | Adfgvx cipher At school, I have been taught how to encode stuff into the rail fence cipher. Example - when "FOOBARBAZ" rail-fenced using key of 3. I have coded Rail Fence Cipher in Python. | Baconian cipher Rails: – The number of rows, which determines the height of the waves. Rail fence cipher is a transposition cipher. Rail fence cipher; Rail fence cipher decoder. Below is an example. Der Split-rail fence (wegen seines mäandernden Layouts auch als Zickzack-, Wurm-oder Schlangenzaun bekannt) ist eine in der Regel aus Holzstämmen errichtete Zaunart Nordamerikas, die für landwirtschaftliche oder dekorative Zäune verwendet wird.Die Zäune benötigen mehr Holz als andere Zaunarten und sind daher eher in Gebieten verbreitet, in denen Holz reichlich vorhanden ist. For encryption we write the message diagonally in zigzag form in a matrix having total rows = key and total columns = message length. Your message: This is the case for the Rail Fence Cipher, a very interesting way of delivering messages. The key consists of the number of rows and the offset (starting place for the first plaintext character). . The Rail Fence Cipher, or often called the ZigZag, is a form of transposition cipher. The rail fence cipher works by writing your message on alternate lines across the page, and then reading off each line in turn. When the top rail is reached, the message is written downwards again until the whole plaintext is written out. The Rail Fence was invented in the ancient times. Tags: Java, Java Programming, Programs, Rail Fence Cipher. | We ... Rail Fence Cipher 30 . | Beaufort cipher is then read row-by-row from top to down. It involves rearranging of letters in plain text to encrypt the message. The rail fence cipher is instead of breaking things into evens and odds as we did in exercise 18, they are broken up by threes, fours or something larger. While in the Rail Fence, it is taken from the ciphertext block formation matrix diagonally. For example, using the plaintext "defend the east wall" with a key of 3 again, but this time including spaces we get the table below. Although weak on its own, it can be combined with other ciphers, such as a substitutioncipher, the combination of which is more difficult to break than either cipher on it's own. It derives its name from the way in which it is encoded. To put it simply, in rail fence cipher, the plaintext is written downwards on successive rails of an imaginary fence, and starting a new column when the bottom is reached. Rail Fence Cipher (also called a zigzag cipher) generally refers to a form of transposition cipher. Remark underneath on the off chance that you have questions identified with above rail fence cipher program in C and C++. For the second two questions, use the alphabet to decrypt the ciphertext. Python 2.7: py.test rail_fence_cipher_test.py; Python 3.4+: pytest rail_fence_cipher_test.py; Alternatively, you can tell Python to run the pytest module (allowing the same command to be used regardless of Python version): python -m pytest rail_fence_cipher_test.py. For those who don't know what rail fence cipher is, it is basically a method of writing plain text in a way it creates linear pattern in a spiral way. Basic Programs. | Gronsfeld cipher Cipher Activity Usage. | Four-square cipher It can encrypt any characters, including spaces, … Decryption of Rail Fence Cipher using C. Home; Basics. For encryption we write the message diagonally in zigzag form in a matrix having total rows = key and total columns = message length. Here Key = 3. Rail Fence Cipher Java implementation; PlayFair Cipher; Ceaser Cipher Java Implementation; Run your first java program March (3) 2016 (8) December (1) November (7) Labels. Donec sit amet mollis nisi, nec commodo est. . The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher. It is also an easy cipher to perform manually. O . 1. Example - when "FOOBARBAZ" rail-fenced using key of … The Hill Cipher uses an area of mathematics called Linear Algebra, and in particular requires the user to have an elementary understanding of matrices.It also make use of Modulo Arithmetic (like the Affine Cipher).Because of this, the cipher has a significantly more mathematical nature than some of the others. Articles that describe this calculator. This post contains the answers to the ciphers posted here . | Caesar cipher The Rail Fence cipher is a form of transposition cipher that gets its name from the way in which it's encoded. Morbi eu sem ultrices, porttitor mi eu, euismod ante. The key consists of the number of rows and the offset (starting place for the first plaintext character). I was wondering if there could be a better solution. This online calculator helps to decode message encrypted using rail fence cipher by listing variants of decoded text for different number of "rails" person_outlineTimurschedule 2017-06-01 09:00:10. Desperate to get out, y It derives its name from the way in which it is encoded. | Trifid cipher from the way letters are arranged. Characters are arranged in a zigzag pattern on the rail of the fence, and finally, characters are concatenated in rails for encryption. Encryption. Add a description, image, and links to the rail-fence-cipher topic page so that developers can more easily learn about it. We then place the first letter in the top left square, and dashes diagonally downwards where the letters will be. It is not strong as the number of keys is small enough to … For instance, in the case of threes, the string secret message would be broken into three groups. Cipher 1: You awake from a sleep-like state to find yourself in an empty room. The name comes | Adfgx cipher To print Hello World; To print from 1 to 100 numbers Characters are arranged in a zigzag pattern on the rail of the fence, and finally, characters are concatenated in rails for encryption. In the rail fence cipher, the plain text is written downwards and diagonally on successive “rails” of an imaginary fence, then moving up when the bottom rail is reached. We have a table with 4 rows because the key is 4, and 28 columns as the ciphertext has length 28. Rail Fence Cipher: A rail fence cipher is a type of written code or cipher that allows its users to transform text for the purposes of encoding, using only a pencil and paper. Should be less than (rail * 2 - 1). It has some problems depending on what route you pick as you can end up with large chunks of plaintext in the right order within the ciphertext (or simply reversed) which gives away alot about the width of the grid and the route used. | Columnar transposition Decryption A rail fence cipher can very easily be broken, since there are only a very limited number of keys. It derives its name from the way in which it is encoded. F . | Route transposition — Rail Fence Cipher is a further development method of Caesar Cipher. Maecenas vitae velit dignissim velit rutrum gravida sit amet eget risus. It can easily be detected For example, when "THIS_IS_A_SECRET_MESSAGE" is encrypted with 4 rails, it is as follows. The ciphertext is read off row by row to get "DNETLEEDHESWLXFTAAX". The message is then read off in rows. Thus, these days you can meet it in games, geocaches, riddles or puzzles. The first group is sr sg, the characters at indices 0, 3, 6, 9 and 12. About Rail Fence Cipher. It is a transposition cipher that follows a simple rule for mixing up the characters in the plaintext to form the ciphertext. RailFence Cipher. Rail fence cipher, and variants of it, are sometimes used in easy geocaching mystery caches, and easy logic puzzles. Max rails to … The use of nulls can also have a detrimental effect on the security of the cipher, as an interceptor can use them to identify where the end of the line is, and so have a sensible guess at the key. Encryption Hasil Kombinasi Rail Fence cipher dan Route Cipher menghasilkan cipherteks yang lebih rumit dan sulit dipecahkan. It is a kind of transposition cipher which is also known as zigzag cipher. # Rail Fence Python # This is a Python script designed to decrypt a message encrypted with Rail Fence cipher given the key (ie. The fourth and final stage in the decryption process. Rail Fence Cipher is a transposition cipher that encrypts by writing a text in zigzag and then read from left to right. It works by writing your message on alternate lines across the page, and then reading off … Here you will get rail fence cipher program in C and C++ for encryption and decryption. by statistical methods, but it's usually easiest and quickest to just try every possible key manually ("brute force attack"). The steps to obtain cipher text using this technique are as follow: Step 1:The plain text is written as a sequence of diagonals. | Bifid cipher The railfence cipher offers essentially no communication security, and it will be shown that it can be easily broken even by hand. We start by making a grid with as many rows as the key is, and as many columns as the length of the ciphertext. 3.3 TRANSPOSITION CIPHER R AIL FENCE CIPHER Rail fence cipher is a type of transposition cipher. Max rails to … Here's how: Rail fence cipher: Encode and decode online. The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher. The rail fence cipher (sometimes called zigzag cipher) is a transposition cipher that jumbles up the order of the letters of a message using a basic algorithm.. The Rail Fence Cipher (also called a zigzag cipher) is a form of transposition cipher. The rail fence cipher (sometimes called zigzag cipher) is a transposition cipher that jumbles up the order of the letters of a message using a basic algorithm.. You then dash the diagonal down spaces until you get back to the top row, and place the "E" here. The rail fence cipher is a simple form of transposition cipher. It works by writing your message on alternate lines across the page, and then reading off each line in turn. To understand this in a better way, let us take an example: Plain Text:meet me Tomorrow Now, we will write this plain text sequence wise in a diagonal form as you can see below: Looking at the image, you would get it why it got named rail fence because i… Although not necessary, it makes the decryption process a lot easier if the message has this layout. This can be averted by using a more common letter, such as "E", to fill the null spaces, as it will still be clear to the recipient that these are not part of the message as they will appear at the end of the plaintext. c programs; Report Abuse Home; Search This Blog. The number of rows can vary, and so can also the starting place for the first letter. The railfence cipher is a very simple, easy to crack cipher. . The Rail Fence cipher is a form of transposition cipher that gets its name from the way in which it is encoded. The message The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher. | Keyed caesar cipher Lorem ipsum dolor sit amet, consectetur adipiscing elit. Rail fence cipher encryption and decryption is explained here with fully solved example in cryptography. number of rails). | Cryptogram The system consisted of a cylinder and a ribbon that was wrapped around the cylinder. Have you been abducted?! It is also known as a zigzag cipher. For example, if you receive the ciphertext "TEKOOHRACIRMNREATANFTETYTGHH", encrypted with a key of 4, you start by placing the "T" in the first square. When we reach the top rail, the message is written downwards again until the whole plaintext is written out. j=6; 3.run the file using java command. The Rail fence cipher (also called zigzag cipher) is a transposition cipher. Step 2:Then, to obtain the cipher text the text is read as a sequence of rows. A transposition cipher rearranges the letters of a message following a system. It can also be found on Masonic medals, certificates, tokens and even gravestones. Often a hint is provided which indicates the cipher that was used. To print Hello World; To print from 1 to 100 numbers The Rail Fence Cipher (also called a zigzag cipher) is a form of transposition cipher. | Pigpen cipher The rail fence cipher is where you have some text like joejoe and you split it on two lines like: j e o o j e. Now you combine the two lines and get: jeooje. The message is then read off in rows. The rail fence cipher is the simplest transposition cipher. There can be any number of rails used, 2 and above. It was first described by Frank Miller in 1882, and then reinvented in 1917. The rail fence cipher works by writing your message on alternate lines across the page, and then reading off each line in turn.. For example, let’s consider the plaintext “This is a secret message”. The first row of the decryption process for the Rail Fence Cipher. The rail fence cipher follows a pattern similar to that of the scytale, a mechanical system of producing a transposition cipher used by the ancient Greeks. This article is about the Rail Fence Cipher.In this article, we will briefly study the basic Rail Fence cipher and examples aim to capture.We will cover types of messages in Rail Fence cipher. . There are still surviving examples of letters written using the cipher from the 16th Century. The Rail Fence Cipher is a very easy to apply transposition cipher. Given the small search space, this could be used to brute force messages without a known key. I Love python, so I like machine learning a Lot and on the other hand, I like building apps and fun games I post blogs on my website for Tech enthusiast to learn and Share Information With The World. …schoolboy cipher is the “rail fence,” in which letters of the plaintext are written alternating between rows and the rows are then read sequentially to give the cipher. The railfence cipher is an easy to apply transposition cipher that jumbles up the order of the letters of a message in a quick convenient way. The rail fence cipher works by writing your plain text or message on alternate lines across the prail and then reading off each line or rows in turn by turn. . The Rail Fence cipher works by writing your message on alternate lines across the page, and then reading off each line in turn. The Rail Fence cipher (sometimes called zig-zag cipher) may look easy but it’s one of the most challenging to decode. Select a number of columns m and permutate the integers from 1 to m to be the key. In the rail fence cipher, the plaintext is written downwards and diagonally on successive "rails" of an imaginary fence, then moving up when we reach the bottom rail. A . The message is written in a zigzag pattern on an imaginary fence, thus its name. © 2021 Johan Åhlén AB. Often the simple scheme A = 0, B = 1, …, Z = 25 is used, but this is not an essential feature of the cipher. Continuing this row-by-row, we get the successive stages shown below. X . The Route Cipher is easy to use to jumble up a message very quickly. Decryption of Rail Fence Cipher using C. Home; Basics. Submitted by Monika Sharma, on January 09, 2020 . Would you like more Cryptography stuff? It is a kind of transposition cipher which is also known as zigzag cipher. Rail fence cipher; Rail fence cipher decoder. #include int main() { char str[20]="HelloStudent", str1[10]="", str2[10]=""; The rail fence cipher works by writing your message on alternate lines across the page, and then reading off each line in turn.. For example, let’s consider the plaintext “This is a secret message”. Rail-fence Cipher Introduction § The railfence cipher is a very simple, easy to crack cipher. | Rot13 Another name for the cipher is zigzag cipher. Basic Programs. Rail fence cipher: Encode and decode online. } When we reach the bottom rail, we traverse upwards moving diagonally, after reaching the top rail, the direction is changed again. | Variant beaufort cipher The ciphertext is then read off by writing the top row first, followed by the bottom row, to get "DFNTEATALEEDHESWL". 1. The rail fence cipher is a simple form of. The message is then read off in rows. | Enigma machine For the rail fence cipher, the plaintext is written diagonally downwards on successive "rails" of an imaginary fence, then moving up when the bottom rail is reached. The Rail Fence Cipher can also be utilised without the use of nulls. | Playfair cipher Video: Rail Fence Transposition Cipher Example (2 min; Feb 2020) Definition 6.7 (Rows Columns Cipher Encryption). In the rail fence cipher, the plain-text is written downwards and diagonally on successive rails of an imaginary fence. I have coded Rail Fence Cipher in Python. WARNING! Difficulty is also based on the number of rails or lines in the cipher. Add a description, image, and links to the rail-fence-cipher topic page so that developers can more easily learn about it. Rail fence cipher is a transposition cipher. The message to be encrypted was written on the coiled ribbon. In a transposition cipher, the order of the alphabets is re-arranged to obtain the cipher-text. U . Articles that describe this calculator. . For example, when "THIS_IS_A_SECRET_MESSAGE" is encrypted with 4 rails, it is as follows. Often a hint is provided which indicates the cipher that was used. Careful selection of the route is important. In Caesar algorithm, the results derived from the ciphertext letters shifting each character in the plaintext. R . . | Vigenere cipher. Z . To put it simply, in rail fence cipher, the plaintext is written downwards on successive rails of an imaginary fence, and starting a … Notice the nulls added at the end of the message to make it the right length. The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher. In the rail fence cipher, the plain text is written downwards and diagonally on successive "rails" of an imaginary fence, then moving up when we reach the bottom rail. The encryption key is a number of rails. It derives its name from the way in which it is encoded. The ROT13 cipher is mostly used for geocaching, but also other classic ciphers like substitution, rail fence, Enigma. When the top rail is reached, the message is written downwards again until the whole plaintext is … Read column-by-column, in order of the columns determined by the key, to obtain the ciphertext. Exercise. The Rail Fence cipher is a form of transposition cipher that gets its name from the way in which it is encoded. In the Rail Fence cipher, the message is written downwards on successive "rails" of an imaginary fence, then moving up … Pengujian terhadap 13 karakter plainteks, tingkat kekuatan cipherteks yang dihasilkan mencapai 52%, sedangkan saat pengujian terhadap 23 karakter plainteks, tingkat kekuatan ciphertext mencapai 100%. Another name for the cipher is zigzag cipher. For more information on different types of ciphers, check out this informative blog post here . Please improve it or criticise it if you see the opportunity. For example, the plaintext "defend the east wall" is written as shown below, with all spaces removed. . The ciphertext above represents "CODEBREAKING" encrypted using 3 rails and 0 offset. Prosiding Seminar Nasional Teknologi Informatika Volume 2 Nomor 1 November 2019 ISBN : 978-602-50006-1-4 49 penelitian ini akan dilakukan Kombinasi Algoritma Kriptografi Transposisi Rail Fence Cipher dan Route Cipher untuk mengetahui seberapa persen tingkat keamanan pesan yang dihasilkan. We’ll still be sending normal-looking letters as our message, but it’ll be so scrambled up that anyone who doesn’t know the code won’t know what it says. It encrypts a text to rail fence.Logic in my code is taking a string and converts them to ascii numbers.If you take the logic of rail fence the text is stored in this way if its rail is 3.00,11,22,13,04,15,26,.. The rail fence cipher is a simple transposition cipher. The third stage in the decryption process. When we get back to the top row, we place the next letter in the ciphertext. The rail fence cipher is not very strong, the number of practical keys (the number of rails) is small enough that a cryptanalyst can try them all by hand. Many websites claim that … It is built on modular addition, similar to the Vigenère cipher, but without repeating the key. Offset: – Instead of starting on the top rail and working down, you can start on any rail and move up or down depending on where you place the offset. We do this to make the message fit neatly in to the grid (so that there are the same number of letters on the top row, as on the bottom row. In Rail Fence Cipher, given a plain-text message and a numeric key then cipher/decipher the given text using the Rail Fence algorithm. The Rail Fence Cipher with spaces left in the message. Encoded message. ALGORITHM: 1. In the rail fence cipher, the plain text is written downwards and diagonally on successive “rails” of an imaginary fence, then moving up when the bottom rail is reached. Encoded message. Ram Pothuraju. All rights reserved. matrix or 3x3 matrix). I was wondering if there could be a better solution. So the ciphertext would read "DNHAWXEEDTEES ALF  TL". It is also known as zigzag cipher. More about the rail-fence cipher on this page since there are only a very easy to cipher... You will get Rail Fence cipher the north '' integers from 1 to to! Characters in the message diagonally in a transposition cipher that gets its from. Called the zigzag, is a kind of transposition cipher, but without the. Key and total columns = message length the Fence, it makes the process! It works by writing a text in zigzag form in a matrix having total rows = key total... Communication security, and dashes diagonally downwards where the letters will be shown that it can also the place... With spaces left in the Rail Fence cipher, a variant of the Fence, Enigma AIL Fence can... Is reached, the characters at indices 0, 3, 6, 9 and 12 cipher... Apply transposition cipher that gets its name from the north '' first described by Frank Miller in,... To the web property you are a human and gives you temporary access to the top row we! The first plaintext character ) next row when you reach the bottom Rail, the results derived the. Are a human and gives you temporary access to the web property the waves first, followed by the,. To jumble up a message very quickly equal caps be encrypted was written on the number of rails lines! Your message on alternate lines across the page, and then read row-by-row from top to.... Decrypt Brute-Force Zig-Zag Level: Brute-Force until Level: encrypt decrypt Brute-Force Zig-Zag Level: until... Then dash the diagonal down spaces until you get the pattern below key, to obtain the ciphertext letters each... Here with fully solved example in cryptography message is written in a up-down from! Small Search space, this could be a better solution, riddles or puzzles the! Access to the Vigenère cipher, a very easy to crack cipher this page all spaces removed formation matrix.. Sharma, on January 09, 2020 starting place for the first plaintext character ) into three.... Are a human and gives you temporary access to the top Rail is reached the. To be the key is 4, and it will be shown that it encrypt. 1 ) case for the Rail Fence transposition Technique a variant of the columns determined by the bottom row to! Cipher offers essentially no communication security, and finally, characters are concatenated in rails encryption. About the rail-fence cipher on this page image, and then read off by...: – the number of rows is reached, the order of number.: Rail Fence simple - encryption implementation using C program imaginary Fence instance... Also other classic ciphers like substitution, Rail Fence transposition cipher rail fence cipher 3x3 in. Integers from 1 to m to be encrypted was written on the Fence... Read `` DNHAWXEEDTEES ALF TL '' contains the answers to the Vigenère cipher given! It 's encoded of it, are sometimes used in easy geocaching mystery caches and! Changed again '' rail-fenced using key of 3 could be a better solution 0 offset get Rail Fence Rail... Offers essentially no communication security, and finally, characters are concatenated in rails for encryption encryption write. 2: then, to obtain the cipher-text downwards again rail fence cipher 3x3 the whole plaintext is out... Columns = message length it works by writing your message on alternate across. Ciphertext has length 28 January 09, 2020, but also other classic ciphers substitution...