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goxr3plus / Java-Speech-Recognizer-Tutorial--Calculator

:lips: Java-Speech-Recognizer-Tutorial--Calculator
Apache License 2.0
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please house I need help creating a playfair Cipher of 17 x 17 #9

Closed abubuhammad closed 5 years ago

abubuhammad commented 5 years ago

Encryption Process for 8bit Characters Step1: Obtain the plaintext PT and ordered by the password PW from the user. Step2:Convert the password PW into hexadecimal Step3: Create a 16x16 matrix using the converted password PW after suppressing repeatable byte: This is accomplished by filling the matrix in a row-wise manner from top to bottom until the password PW is exhausted then continuing with the remaining alphabets of the extended ASCII in ascending order and shuffle the entire matrix once. Increase the size of the matrix to 17x17 with the first row and column keys (A-F and 0-9). Step4: Divide the plaintext PT into pairs if the length is odd add a null character at the end Step5: Convert the pair into their hexadecimal equivalent Step6 a: Get the current pair of the plaintext P b. swap the high-order nibble of the first character with the low-order nibble of the second character and vice versa c. Is there anymore pair? If yes go to (a) else go to (d) d. This gives a modified plaintext P1 Step7 a. Apply substitution encryption algorithm on the current pair of character of the modified plaintext P1 b. Shift the character of the key row to the left once c. are the row keys in their initial position? If yes go to (c) else go to (d) d. shift the column character key upward once e. Is there anymore pair of character? If yes go to (a) else stop this gives a hexadecimal ciphertext f. Convert the current 2 byte of hexadecimal into its Unicode equivalent g. Is there anymore 2 byte? If yes go to (e) else stop this gives a ciphertext C

Decryption Process 8bit Characters Decryption process is carried out by following the steps below: Step1: Obtain the password PW and ciphertext C from the user Step2:Convert the password PW into hexadecimal Step3:Create a 16x16 matrix using the converted password PW after suppressing repeatable byte: This is accomplished by filling the matrix in a row-wise manner from top to bottom until the password PW is exhausted then continuing with the remaining alphabets of the extended ASCII in ascending order and shuffle the entire matrix once. Increase the size of the matrix to 17x17 with the first row and column to be the keys(A-F and 09). Step4a: Get the ciphertext C and convert it into its hexadecimal equivalent. Step5. Getthe current pair and locate it in the 17x17 matrix and obtain the row and column key alphabet/number respectively that intercept the pair. b. Is there anymore pair? If yes go to (a) else go to (c) c. This gives a modified hexadecimal plaintext P1 Step4 a: Get the current pair of the hexadecimal plaintext P1 b. Swap the high-order nibble of the first character with the low-order nibble of the second character and vice versa. c. Is there anymore pair? If yes go to (a) else go to (d) d. This gives a modified hexadecimal plaintext P2 Step5 a: Convert the current pair of the modified hexadecimal plaintext P2 to give a character equivalent. b. Is there anymore pair? If yes go to (a) else go to (c) c. Stop this gives back the original plaintext characters.

goxr3plus commented 5 years ago

Is this project for Nasa? :)

abubuhammad commented 5 years ago

No Sir its a school project I have attached the algorithmic steps, please help

On Fri, Nov 16, 2018 at 4:58 PM GOXR3PLUS STUDIO notifications@github.com wrote:

Is this project for Nasa? :)

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/goxr3plus/Java-Speech-Recognizer-Tutorial--Calculator/issues/9#issuecomment-439438615, or mute the thread https://github.com/notifications/unsubscribe-auth/AOLBQEyzUlYNaHVsaNXsxeavMy-hOpdvks5uvuCcgaJpZM4Yl16y .

goxr3plus commented 5 years ago

It's so complex i read it 3 times to understand the basics. What leason is that project for ma boi?

goxr3plus commented 5 years ago

What this has to so with Speech Recognition? Please refer on StackOverflow

abubuhammad commented 5 years ago

No sir it has nothing to do with speech recognition I just wanted your help.

On Fri, Nov 16, 2018 at 11:21 PM GOXR3PLUS STUDIO notifications@github.com wrote:

What this has to so with Speech Recognition? Please refer on StackOverflow

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/goxr3plus/Java-Speech-Recognizer-Tutorial--Calculator/issues/9#issuecomment-439547022, or mute the thread https://github.com/notifications/unsubscribe-auth/AOLBQE6alHykqnU47Y_vkCEQyPComNd_ks5uvzpWgaJpZM4Yl16y .

goxr3plus commented 5 years ago

@abubuhammad This is out of scope for this repository my friend :)