{"id":19456,"date":"2022-11-06T19:03:00","date_gmt":"2022-11-06T13:33:00","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-convert-this-php-code-to-c-rijndael-algorithm\/"},"modified":"2022-11-06T19:03:00","modified_gmt":"2022-11-06T13:33:00","slug":"solved-convert-this-php-code-to-c-rijndael-algorithm","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-convert-this-php-code-to-c-rijndael-algorithm\/","title":{"rendered":"[Solved] Convert this PHP code to C# Rijndael Algorithm"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-2699519\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"2699519\" data-parentid=\"2668972\" data-score=\"2\" data-position-on-page=\"2\" data-highest-scored=\"0\" data-question-has-accepted-highest-score=\"0\" itemprop=\"suggestedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>Nay sayers and doom mongers, behold!<\/p>\n<pre><code>using System;\nusing System.Collections.Generic;\nusing System.Linq;\nusing System.Text;\nusing System.Security.Cryptography;\nusing System.IO;\nusing System.Web;\n\nnamespace EncryptData\n{\n    class EncryptData\n    {\n    private static readonly Encoding ASCII_ENCODING = new System.Text.ASCIIEncoding();\n\n    private static string md5(string text)\n    {\n        return BitConverter.ToString(new MD5CryptoServiceProvider().ComputeHash(ASCII_ENCODING.GetBytes(text))).Replace(\"-\", \"\").ToLower();\n    }\n\n    public abstract string nonce();\n\n    public abstract string salt();\n\n    public readonly string EncryptedData;\n\n    public EncryptData(string message)\n    {\n\n        \/\/ set up encrytion object\n        RijndaelManaged aes192 = new RijndaelManaged();\n        aes192.KeySize = 192;\n        aes192.BlockSize = 192;\n        aes192.Padding = PaddingMode.None;\n        aes192.Mode = CipherMode.CBC;\n        aes192.Key = ASCII_ENCODING.GetBytes(md5(SECRET_KEY));\n        aes192.GenerateIV();\n\n        string localSalt = salt();\n        string localNonce = nonce();\n\n        \/\/ form the string for encrypting\n        \/\/ and put into byte array\n        string textToEncrypt = localSalt + message+ localNonce;\n        byte[] plainTextBytes = ASCII_ENCODING.GetBytes(textToEncrypt);\n\n        \/\/ encrypt the data            \n        ICryptoTransform encryptor = aes192.CreateEncryptor();\n        MemoryStream ms = new MemoryStream();\n\n        CryptoStream cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write);\n        cs.Write(plainTextBytes, 0, plainTextBytes.Length);\n\n        \/\/ convert our encrypted data from a memory stream into a byte array.\n        byte[] cypherTextBytes = ms.ToArray();\n\n        \/\/ close memory stream\n        ms.Close();\n\n        byte[] combined = null;\n        \/\/ combine data and convert to byte array\n        combined = CombinedData(localSalt, aes192.IV, cypherTextBytes);\n        \/\/ url encode data once converted to base64 string\n        EncryptedData = HttpUtility.UrlEncode(base64CombinedData(combined), ASCII_ENCODING);\n\n\n    }\n\n    public byte[] CombinedData(string salt, byte[] IV, byte[] cypherTextBytes)\n    {\n        \/\/ convert salt string into byte array\n        byte[] saltBytes = ASCII_ENCODING.GetBytes(salt);\n\n        \/\/ catenate all the byte arrays into one\n        \/\/ set up dest byte array with required size\n        byte[] rv = new byte[saltBytes.Length + IV.Length + cypherTextBytes.Length];\n\n        \/\/ copy in each byte array\n        Buffer.BlockCopy(saltBytes, 0, rv, 0, saltBytes.Length);\n        Buffer.BlockCopy(IV, 0, rv, saltBytes.Length, IV.Length);\n        Buffer.BlockCopy(cypherTextBytes, 0, rv, saltBytes.Length + IV.Length, cypherTextBytes.Length);\n\n        return rv;\n    }\n\n    public string base64CombinedData(byte[] rv)\n    {\n        return Convert.ToBase64String(rv);\n    }\n\n}\n}\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Convert this PHP code to C# Rijndael Algorithm <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Nay sayers and doom mongers, behold! using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.IO; using System.Web; namespace EncryptData { class EncryptData { private static readonly Encoding ASCII_ENCODING = new System.Text.ASCIIEncoding(); private static string md5(string text) { return BitConverter.ToString(new MD5CryptoServiceProvider().ComputeHash(ASCII_ENCODING.GetBytes(text))).Replace(&#8220;-&#8220;, &#8220;&#8221;).ToLower(); } public abstract string nonce(); public abstract string salt(); public &#8230; <a title=\"[Solved] Convert this PHP code to C# Rijndael Algorithm\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-convert-this-php-code-to-c-rijndael-algorithm\/\" aria-label=\"More on [Solved] Convert this PHP code to C# Rijndael Algorithm\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,339],"class_list":["post-19456","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-php"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[Solved] Convert this PHP code to C# Rijndael Algorithm - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-convert-this-php-code-to-c-rijndael-algorithm\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Convert this PHP code to C# Rijndael Algorithm - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Nay sayers and doom mongers, behold! using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.IO; using System.Web; namespace EncryptData { class EncryptData { private static readonly Encoding ASCII_ENCODING = new System.Text.ASCIIEncoding(); private static string md5(string text) { return BitConverter.ToString(new MD5CryptoServiceProvider().ComputeHash(ASCII_ENCODING.GetBytes(text))).Replace(&quot;-&quot;, &quot;&quot;).ToLower(); } public abstract string nonce(); public abstract string salt(); public ... 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