{"id":52081,"date":"2021-09-20T13:45:04","date_gmt":"2021-09-20T13:45:04","guid":{"rendered":"https:\/\/papersspot.com\/blog\/2021\/09\/20\/permutation-cipher-in-c\/"},"modified":"2021-09-20T13:45:04","modified_gmt":"2021-09-20T13:45:04","slug":"permutation-cipher-in-c","status":"publish","type":"post","link":"https:\/\/papersspot.com\/blog\/2021\/09\/20\/permutation-cipher-in-c\/","title":{"rendered":"Permutation Cipher in C"},"content":{"rendered":"<p>The permutation ciphers are used to generate a ciphertext (encrypted text) by re-arranging the position of the letters in a given plaintext. <br \/>How does it work? <br \/>Select the block size (n) and a permutation. <br \/>Divide a given plaintext into blocks of n letters and use \u2018x\u2019 as padding, if necessary. <br \/>Apply a permutation to each block and generate the encrypted ciphertext <\/p>\n<p> Encrypted ciphertext is egtnelem nodn tor ae daehco htres\u2019m iaxl <br \/>The program needs to get the following information from the user:To encrypt: a text file that includes the plaintext, and a block size and the permutationinformation via standard input (keyboard). <br \/>To decrypt: a binary file that includes an encrypted ciphertext, and a block size and thepermutation information via standard input (keyboard). <br \/>The program should be able to process up to 8 characters at each block with a minimum of 2 characters <\/p>\n","protected":false},"excerpt":{"rendered":"<p>The permutation ciphers are used to generate a ciphertext (encrypted text) by re-arranging the position of the letters in a given plaintext. How does it work? Select the block size (n) and a permutation. Divide a given plaintext into blocks of n letters and use \u2018x\u2019 as padding, if necessary. Apply a permutation to each [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10],"class_list":["post-52081","post","type-post","status-publish","format-standard","hentry","category-research-paper-writing","tag-writing"],"_links":{"self":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts\/52081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/comments?post=52081"}],"version-history":[{"count":0,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts\/52081\/revisions"}],"wp:attachment":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/media?parent=52081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/categories?post=52081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/tags?post=52081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}