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  1. PO
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    <p>You can use something like this..</p> <p>//For encrypting string.</p> <pre><code>public static string Encrypt(string toEncrypt, bool useHashing) { byte[] keyArray; byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt); string key = "UglyRandomKeyLike-lkj54923c478"; if (useHashing) { MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider(); keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key)); hashmd5.Clear(); } else keyArray = UTF8Encoding.UTF8.GetBytes(key); TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider(); tdes.Key = keyArray; tdes.Mode = CipherMode.ECB; tdes.Padding = PaddingMode.PKCS7; ICryptoTransform cTransform = tdes.CreateEncryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); tdes.Clear(); return Convert.ToBase64String(resultArray, 0, resultArray.Length); } </code></pre> <p>// To decrypt string </p> <pre><code>public static string Decrypt(string cipherString, bool useHashing) { byte[] keyArray; byte[] toEncryptArray = Convert.FromBase64String(cipherString); string key = "UglyRandomKeyLike-lkj54923c478"; if (useHashing) { MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider(); keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key)); hashmd5.Clear(); } else keyArray = UTF8Encoding.UTF8.GetBytes(key); TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider(); tdes.Key = keyArray; tdes.Mode = CipherMode.ECB; tdes.Padding = PaddingMode.PKCS7; ICryptoTransform cTransform = tdes.CreateDecryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); tdes.Clear(); return UTF8Encoding.UTF8.GetString(resultArray); } </code></pre> <p>The above mentioned method will encrypt your password and you can store it in varchar field in your database. The second method takes encrypted password and return it in normal string I hope this is what you are looking for.. I am not able to comment in your question.</p>
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    1. POHow to store a system.net.mail password in the database
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    1. COI guess it will solve ur problem.. why it is down voted
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    2. COIm not sure. Please see my other comment.
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    3. CO@spryce if you are referring to the comment in which you are talking about the datatype field in sql and Q X B j L W V w M X B =. It will solve your that problem to. You can take a varchar(MAX) field. And the type of string you will get from above encryption function will be something like this. "tupBY1u4XVY="
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