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The move!
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101
src/Ombi.Helpers/StringCipher.cs
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101
src/Ombi.Helpers/StringCipher.cs
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using EasyCrypto;
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using System;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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namespace Ombi.Helpers
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{
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public static class StringCipher
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{
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/// <summary>
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/// Decrypts the specified cipher text.
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/// </summary>
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/// <param name="cipherText">The cipher text.</param>
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/// <param name="passPhrase">The pass phrase.</param>
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/// <returns></returns>
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public static string Decrypt(string cipherText, string passPhrase)
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{
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var fullCipher = Convert.FromBase64String(cipherText);
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var iv = new byte[16];
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var cipher = new byte[16];
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Buffer.BlockCopy(fullCipher, 0, iv, 0, iv.Length);
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Buffer.BlockCopy(fullCipher, iv.Length, cipher, 0, iv.Length);
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var key = Encoding.UTF8.GetBytes(passPhrase);
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using (var aesAlg = Aes.Create())
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{
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using (var decryptor = aesAlg.CreateDecryptor(key, iv))
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{
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string result;
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using (var msDecrypt = new MemoryStream(cipher))
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{
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using (var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
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{
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using (var srDecrypt = new StreamReader(csDecrypt))
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{
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result = srDecrypt.ReadToEnd();
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}
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}
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}
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return result;
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}
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}
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}
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/// <summary>
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/// Encrypts the specified plain text.
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/// </summary>
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/// <param name="plainText">The plain text.</param>
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/// <param name="passPhrase">The pass phrase.</param>
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/// <returns></returns>
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public static string Encrypt(string plainText, string passPhrase)
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{
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var key = Encoding.UTF8.GetBytes(passPhrase);
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using (var aesAlg = Aes.Create())
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{
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using (var encryptor = aesAlg.CreateEncryptor(key, aesAlg.IV))
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{
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using (var msEncrypt = new MemoryStream())
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{
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using (var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
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using (var swEncrypt = new StreamWriter(csEncrypt))
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{
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swEncrypt.Write(plainText);
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}
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var iv = aesAlg.IV;
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var decryptedContent = msEncrypt.ToArray();
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var result = new byte[iv.Length + decryptedContent.Length];
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Buffer.BlockCopy(iv, 0, result, 0, iv.Length);
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Buffer.BlockCopy(decryptedContent, 0, result, iv.Length, decryptedContent.Length);
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return Convert.ToBase64String(result);
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}
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}
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}
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}
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public static string EncryptString(string text, string keyString)
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{
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var t = Encoding.UTF8.GetBytes(text);
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var result = Convert.ToBase64String(t);
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return result;
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}
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public static string DecryptString(string cipherText, string keyString)
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{
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var textAsBytes = Convert.FromBase64String(cipherText);
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var result = Encoding.UTF8.GetString(textAsBytes);
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return result;
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}
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}
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}
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