CIPHERS Cryptology, the science of writing and breaking codes and ciphers, uses many ides from mathematics. It is a rapidly expanding profession. Can you decipher the following message, which is written in pig-pen cipher? L MOUT Orun FELLOF OJHD3 The Pigpen Cipher is a Substitution Cipher that was used by the Freemasons in the 18th Century. They substituted each letter of the alphabet with a picture. A key to this cipher is formed by placing the letters of the alphabet in "pens" formed by the sales in a tic-tac-toe grid. In the grid the letters are places as shown below. ### A J K L T U DEF M N V W x GH R Y To make the cipher, no dots are used for the letters A through I, only the sides of the pens. We use one dot in each pen for the letters J through R and two dots per pen for S through Z. Write the cipher for each letter below. A- B- C- D. E- F. G- H- J- K- L- M- N- O- P. Q- R- S- T- U- V. w - X - Y- z- Use the key to decipher the message(picture on the top page):

CIPHERS Cryptology, the science of writing and breaking codes and ciphers, uses many ides from mathematics. It is a rapidly expanding profession. Can you decipher the following message, which is written in pig-pen cipher? L MOUT Orun FELLOF OJHD3 The Pigpen Cipher is a Substitution Cipher that was used by the Freemasons in the 18th Century. They substituted each letter of the alphabet with a picture. A key to this cipher is formed by placing the letters of the alphabet in "pens" formed by the sales in a tic-tac-toe grid. In the grid the letters are places as shown below. ### A J K L T U DEF M N V W x GH R Y To make the cipher, no dots are used for the letters A through I, only the sides of the pens. We use one dot in each pen for the letters J through R and two dots per pen for S through Z. Write the cipher for each letter below. A- B- C- D. E- F. G- H- J- K- L- M- N- O- P. Q- R- S- T- U- V. w - X - Y- z- Use the key to decipher the message(picture on the top page):

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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IN JAVA PROGRAMMING LANGUAGE PLEASE , DO THE ENCRYPTION AND DECRYPTION FOR THIS CIPHER BUT USING THIS SOLUTION IN THE IMAGE AND NOT THE ONES ON THE INTERNET PLEASE I WANT THE RESULT OF ENCRYPTION TO BE THE SAME AS THE IMAGE AND FOR THE DECRYPTION TO GIVE THE SAME ORIGINAL MESSAGE
Introductory: The Caesar Cipher technique is one of the earliest and simplest methods of encryption techniques. It is simply a type of substitution cipher, i.e., each letter of a given text is replaced by a letter some fixed number of positions down the alphabet. For example, with a shift of 1, A would be replaced by B, B would become C, and so on. The method is apparently named after Julius Caesar, who apparently used it to communicate with his officials. Thus, to cipher a given text we need an integer value, known as a shift which indicates the number of positions each letter of the text has been moved down. The encryption can 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 by a shift n can be described mathematically as. En(x) = (x+n) mod 26 (Encryption Phase with shift n) Write an algorithm and implement a program in C to read the data from a file (called…
Encrypt the message SEE YOU IN THE PARK AFTER CLASS using a transposition cipher with key word HONEY. Use 5 characters per row.
RSA (Rivest–Shamir–Adleman) and AES (Advanced Encryption Standard) are two different types of ciphers. You are now given two large primes, p and q, a cryptographic hash function H(x).a) DESCRIBE the RSA algorithm. In your description, you should make clear how RSA keys are generated, how a message is encrypted and how a cipher text is decrypted.
In cryptography, a Caesar cipher is a very simple encryption techniques in which each letter in the plain text is replaced by a letter some fixed number of positions down the alphabet. For example, with a shift of 3, A would be replaced by D, B would become E, and so on. The method is named after Julius Caesar, who used it to communicate with his generals. ROT-13 (“rotate by 13 places”) is a widely used example of a Caesar cipher where the shift is 13. In Python, the key for ROT-13 may be represented by means of the following dictionary: key = {‘a’:’n’, ‘b’:’o’, ‘c’:’p’, ‘d’:’q’, ‘e’:’r’, ‘f’:’s’, ‘g’:’t’, ‘h’:’u’,‘i’:’v’, ‘j’:’w’, ‘k’:’x’, ‘l’:’y’, ‘m’:’z’, ‘n’:’a’, ‘o’:’b’, ‘p’:’c’,‘q’:’d’, ‘r’:’e’, ‘s’:’f’, ‘t’:’g’, ‘u’:’h’, ‘v’:’i’, ‘w’:’j’, ‘x’:’k’,‘y’:’l’, ‘z’:’m’, ‘A’:’N’, ‘B’:’O’, ‘C’:’P’, ‘D’:’Q’, ‘E’:’R’, ‘F’:’S’,‘G’:’T’, ‘H’:’U’, ‘I’:’V’, ‘J’:’W’, ‘K’:’X’, ‘L’:’Y’, ‘M’:’Z’, ‘N’:’A’,‘O’:’B’, ‘P’:’C’, ‘Q’:’D’, ‘R’:’E’, ‘S’:’F’, ‘T’:’G’, ‘U’:’H’, ‘V’:’I’,‘W’:’J’, ‘X’:’K’,…
In cryptography, a Caesar cipher is a very simple encryption techniques in which each letter in the plain text is replaced by a letter some fixed number of positions down the alphabet. For example, with a shift of 3, A would be replaced by D, B would become E, and so on. The method is named after Julius Caesar, who used it to communicate with his generals. ROT-13 (“rotate by 13 places”) is a widely used example of a Caesar cipher where the shift is 13. In Python, the key for ROT-13 may be represented by means of the following dictionary: key = {‘a’:’n’, ‘b’:’o’, ‘c’:’p’, ‘d’:’q’, ‘e’:’r’, ‘f’:’s’, ‘g’:’t’, ‘h’:’u’,‘i’:’v’, ‘j’:’w’, ‘k’:’x’, ‘l’:’y’, ‘m’:’z’, ‘n’:’a’, ‘o’:’b’, ‘p’:’c’,‘q’:’d’, ‘r’:’e’, ‘s’:’f’, ‘t’:’g’, ‘u’:’h’, ‘v’:’i’, ‘w’:’j’, ‘x’:’k’,‘y’:’l’, ‘z’:’m’, ‘A’:’N’, ‘B’:’O’, ‘C’:’P’, ‘D’:’Q’, ‘E’:’R’, ‘F’:’S’,‘G’:’T’, ‘H’:’U’, ‘I’:’V’, ‘J’:’W’, ‘K’:’X’, ‘L’:’Y’, ‘M’:’Z’, ‘N’:’A’,‘O’:’B’, ‘P’:’C’, ‘Q’:’D’, ‘R’:’E’, ‘S’:’F’, ‘T’:’G’, ‘U’:’H’, ‘V’:’I’,‘W’:’J’, ‘X’:’K’,…
On Groundhog Day, the groundhog randomly chooses and sends one of two possible messages: m0 = SIXMOREWEEKSOFWINTER m1 = SPRINGARRIVESINMARCH. To add to the mystery, the groundhog encrypts the message using one of the following methods: shift cipher, Vigenère cipher with key length 4 (using four distinct shifts), one-time pad. For each of the following ciphertexts, determine which encryption methods could have produced that ciphertext, and for each of these possible encryption methods, decrypt the message or explain why it is impossible to decrypt. a. ABCDEFGHIJKLMNOPQRST b. UKZOQTGYGGMUQHYKPVGT c. UQUMPHDVTJYIUJQQCSFL.
q5- The Atbash cipher is a type of monoalphabetic cipher formed by taking the alphabet and mapping it to its reverse, so that the first letter becomes the last letter, the second letter becomes the second to last letter, and so on. For example: A becomes Z and Z becomes A, B becomes Y and Y becomes B, and so on. Numeric digits and special symbols will remain the same. What does XHV2HRZ mean?
1- A simple encryption method is being used to encrypt a small number (called the secret number). The method by which this encryption works is as follows: I. Choose a random seed number II. Calculate the key by multiplying the seed with the secret under modulus 7 III. Finally, multiply the key with the secret to get the encrypted secret
Affine Cipher is an example of a Monoalphabetic substitution cipher. The encryption process is substantially mathematical done by using the following formula: C = (P ∗ ?1 + ?2) mod 26. Where k1, k2 are two integers representing the key (selected randomly), C is the ciphertext value, and P is the plaintext value. Where C and P integers with values between 0 and 25. 1) Write an Octave programme to implement this system, run your programme using the Plaintext: “the quick brown fox jumped over the lazy dog”. Show the obtained ciphertext with the selected values of the keys k1 & k2. 2) Given that the plaintext “s” mapped to ciphertext “W”, plaintext “x” mapped to ciphertext “Z” when encrypted with Affine Cipher. Determine, mathematically, the values for the two keys K1 and K2. I need an octave code for the first part of this question, that i can just copy and paste. In addition, to an explanation of the steps done to…
Affine Cipher is an example of a Monoalphabetic substitution cipher. The encryption process is substantially mathematical done by using the following formula: C = (P ∗ ?1 + ?2) mod 26. Where k1, k2 are two integers representing the key (selected randomly), C is the ciphertext value, and P is the plaintext value. Where C and P integers with values between 0 and 25. Write an Octave programme to implement this system, run your programme using the Plaintext: “the quick brown fox jumped over the lazy dog”. Show the obtained ciphertext with the selected values of the keys k1 & k2. Given that the plaintext “s” mapped to ciphertext “W”, plaintext “x” mapped to ciphertext “Z” when encrypted with Affine Cipher. Determine, mathematically, the values for the two keys K1 and K2.
A Caesar cipher is a simple substitution cipher based on the idea of shiftingeach letter of the plaintext message a fixed number (called the key) ofpositions in the alphabet. For example, if the key value is 2, the word"Sourpuss" would be encoded as "Uqwtrwuu." The original message canbe recovered by "reencoding" it using the negative of the key. Write a program that can encode and decode Caesar ciphers. The in-put to the program will be a string of plaintext and the value of the key. The output will be an encoded message where each character in the orig-inal message is replaced by shifting it key characters in the Unicode char-acter set. For example, if ch is a character in the string and key is the amount to shift, then the character that replaces ch can be calculated as:chr (ord(ch) + key) .