.Net Core Encryption / Decryption

Question

what are .net core supported Symmetric & Asymmetric Algorithms.

Ananth G · Answer

Refer below side https://msdn.microsoft.com/en-us/library/0ss79b2x(v=vs.110).aspx Example protected void btnEncrypt_Click( object sender, EventArgs e) { if (txtName.Text != "" ) { lblErrText1.Text = "" ; Label2.Text = FunForEncrypt(txtName.Text, "Ananth.G1992" ); } else { lblErrText1.Text = "Please Enter value to below textbox" ; } } public static string FunForEncrypt( string objText, string objKeycode) { byte [] objInitVectorBytes = Encoding.UTF8.GetBytes( "HR$2pIjHR$2pIj12" ); byte [] objPlainTextBytes = Encoding.UTF8.GetBytes(objText); PasswordDeriveBytes objPassword = new PasswordDeriveBytes(objKeycode, null ); byte [] objKeyBytes = objPassword.GetBytes(256 / 8); RijndaelManaged objSymmetricKey = new RijndaelManaged(); objSymmetricKey.Mode = CipherMode.CBC; ICryptoTransform objEncryptor = objSymmetricKey.CreateEncryptor(objKeyBytes, objInitVectorBytes); MemoryStream objMemoryStream = new MemoryStream(); CryptoStream objCryptoStream = new CryptoStream(objMemoryStream, objEncryptor, CryptoStreamMode.Write); objCryptoStream.Write(objPlainTextBytes, 0, objPlainTextBytes.Length); objCryptoStream.FlushFinalBlock(); byte [] objEncrypted = objMemoryStream.ToArray(); objMemoryStream.Close(); objCryptoStream.Close(); return Convert.ToBase64String(objEncrypted); } public static string FunForDecrypt( string EncryptedText, string Key) { byte [] objInitVectorBytes = Encoding.ASCII.GetBytes( "HR$2pIjHR$2pIj12" ); byte [] objDeEncryptedText = Convert.FromBase64String(EncryptedText); PasswordDeriveBytes objPassword = new PasswordDeriveBytes(Key, null ); byte [] objKeyBytes = objPassword.GetBytes(256 / 8); RijndaelManaged objSymmetricKey = new RijndaelManaged(); objSymmetricKey.Mode = CipherMode.CBC; ICryptoTransform objDecryptor = objSymmetricKey.CreateDecryptor(objKeyBytes, objInitVectorBytes); MemoryStream objMemoryStream = new MemoryStream(objDeEncryptedText); CryptoStream objCryptoStream = new CryptoStream(objMemoryStream, objDecryptor, CryptoStreamMode.Read); byte [] objPlainTextBytes = new byte [objDeEncryptedText.Length]; int objDecryptedByteCount = objCryptoStream.Read(objPlainTextBytes, 0, objPlainTextBytes.Length); objMemoryStream.Close(); objCryptoStream.Close(); return Encoding.UTF8.GetString(objPlainTextBytes, 0, objDecryptedByteCount); } protected void btnDecrypt_Click( object sender, EventArgs e) { if (txtName.Text == "" ) { lblErrText1.Text = "Please Enter value to below textbox" ; } else if (Label2.Text == "" ) { lblErrText1.Text = " Please first Enter value to below textbox and generate encryption text" ; } else { Label4.Text = FunForDecrypt(Label2.Text, "Ananth.G1992" ); } }

Afzaal Ahmad Zeeshan · Answer

.NET Core supports similar objects as .NET framework did for cryptography so you can use the same one. For example, have a look at the following objects on MSDN, https://docs.microsoft.com/en-us/dotnet/core/api/system.security.cryptography.symmetricalgorithm https://docs.microsoft.com/en-us/dotnet/core/api/system.security.cryptography.asymmetricalgorithm These are the algorithms that are used in .NET Core for symmetric and asymmetric cryptographic. However, .NET Core objects are all implemented fully so that you don't have to worry about maintaining and implementing it.