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POlength of data to decrypt is invalid with rijndael cryptography
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the other links are not being useful to me. i am encrypting string before saving in mysql database.that is working fine.but when i want to retrieve, its giving me length of data to encrypt is invalid error. before my encryption requirement, i was using datatype of varchar size 500.now im using varbinary of size 800.can any1 advise me on the size too? encryption method: <pre><code>public static byte[] encryptStringToBytes(string plainText) { byte[] encrypted; //create an Rijndael object using (Rijndael rijAlg = Rijndael.Create()) { //create a decrytor to perform the stream transform. ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV); //create the streams used for encryption. using (MemoryStream msEncrypt = new MemoryStream()) { using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write)) { using (StreamWriter swEncrypt = new StreamWriter(csEncrypt)) { //Write all data to the stream. swEncrypt.Write(plainText); } encrypted = msEncrypt.ToArray(); } } } return encrypted; } </code></pre> decryption method: <pre><code> public static string decryptStringFromBytes(byte[] cipherText) { string plaintext = null; //create an Rijndael object using (Rijndael rijAlg = Rijndael.Create()) { //create a decrytor to perform the stream transform. ICryptoTransform decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV); //create the streams used for decryption. using (MemoryStream msDecrypt = new MemoryStream(cipherText)) { using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read)) { using (StreamReader srDecrypt = new StreamReader(csDecrypt)) { //read the decrypted bytes from the decrypting stream and place them in a string. plaintext = srDecrypt.ReadToEnd(); } } } } return plaintext; } </code></pre> retrieving from resultset <pre><code> using (Rijndael myRijndael = Rijndael.Create()) { temp5 = EncryptDecrypt.decryptStringFromBytes((byte[])reader.GetValue(reader.GetOrdinal("Body"))); } </code></pre>
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length of data to decrypt is invalid with rijndael cryptography
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