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POAES Encryption Error: Padding is invalid and cannot be removed
 

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  1. POAES Encryption Error: Padding is invalid and cannot be removed
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    <p>Can anyone help me on the below code, error is padding is invalid and cannot be removed. I am searching all over SO and applied all their suggestions, but still padding is invalid. I am using NET-2.0</p> <p>Below is my code</p> <pre><code>static public String AES_encrypt(String Input) { string AES_Key = "PSVJQRk9QTEpNVU1DWUZCRVFGV1VVT0ZOV1RRU1NaWQ="; string AES_IV = "YWlFLVEZZUFNaWlhPQ01ZT02qWU5HTFJQVFNCRUJZVA="; var aes = new RijndaelManaged(); aes.KeySize = 256; aes.BlockSize = 256; aes.Padding = PaddingMode.PKCS7; aes.Key = Convert.FromBase64String(AES_Key); aes.IV = Convert.FromBase64String(AES_IV); var encrypt = aes.CreateEncryptor(aes.Key, aes.IV); byte[] xBuff = null; using (var ms = new MemoryStream()) { using (var cs = new CryptoStream(ms, encrypt, CryptoStreamMode.Write)) { byte[] xXml = Encoding.UTF8.GetBytes(Input); cs.Write(xXml, 0, xXml.Length); } xBuff = ms.ToArray(); } String Output = Convert.ToBase64String(xBuff); return Output; } static public String AES_decrypt(String Input) { string AES_Key = "PSVJQRk9QTEpNVU1DWUZCrOFGV1VVT0ZOV1RRU1NaWQ="; string AES_IV = "YWlFLVEZZUFNaWlhPQ01ZT02qWU5HTFJQVFNCRUJZVA="; RijndaelManaged aes = new RijndaelManaged(); aes.KeySize = 256; aes.BlockSize = 256; aes.Mode = CipherMode.CBC; aes.Padding = PaddingMode.PKCS7; aes.Key = Convert.FromBase64String(AES_Key); aes.IV = Convert.FromBase64String(AES_IV); var decrypt = aes.CreateDecryptor(); byte[] xBuff = null; using (var ms = new MemoryStream()) { using (var cs = new CryptoStream(ms, decrypt, CryptoStreamMode.Write)) { byte[] xXml = Convert.FromBase64String(Input); cs.Write(xXml, 0, xXml.Length); } xBuff = ms.ToArray(); } String Output = Encoding.UTF8.GetString(xBuff); return Output; } </code></pre> <p>I am thinking the issues here is the AES_encrypt, because if I passed an encrypted string from PHP to my project, AES_decrypt will successfully decrypt it. However, whenever I use AES_encrypt, AES_decrypt is throwing error.</p> <p>Any help would be greatly appreciated.</p>
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