Asp.net Encryption Key Generator
You can use the IIS MachineKey Validation Key generator to get the encryption keys (make sure to avoid the,IsolateApps portion). As of R1 2017, the Encrypt-then-MAC approach is implemented, in order to improve the integrity of the encrypted temporary and target folders. The machineKey element in the ASP.NET web.config file specifies the algorithm and keys that ASP.NET will use for encryption. By default the validationKey and the decryptionKey keys are set to AutoGenerate which means the runtime will generate a random key for use. This works fine for applications that are deployed on a single server. A 1024-bit key will usually be ready instantly, while a 4096-bit key may take up to several minutes. For a faster and more secure method, see Do It Yourself below. CryptoTools.net does not yet have a tool for facilitating the encryption and decryption of data using RSA, but you may Do It Yourself with the instructions below. Jan 12, 2011 how to generate validationKey and decryption Key for web.config Posted in ASP.NET (C# & VB), C#, VB, WCF by Alok Kumar Pandey on January 12, 2011 This article describes how to create keys to use for encryption, decryption, and validation of Forms authentication cookie data. The all-in-one ultimate online toolbox that generates all kind of keys! Every coder needs All Keys Generator in its favorites! It is provided for free and only supported by ads and donations.
What Is Machine Key? The machineKey element in the ASP.NET web.config file specifies the algorithm and keys that ASP.NET will use for encryption. By default the validationKey and the decryptionKey keys are set to AutoGenerate which means the runtime will generate a random key for use. Generate ASP.NET Machine Keys This tool allows you to create a valid random machine key for validation and encryption/decryption of ASP.NET view state. This is beneficial in a webfarm where all of the server nodes need to have the same machine key, and it is also beneficial on a single box to keep the machine key consistent between IIS recycles and server reboots.
| #regionEncryption |
| /// <summary> |
| /// Generate a private key |
| /// From : www.chapleau.info/blog/2011/01/06/usingsimplestringkeywithaes256encryptioninc.html |
| /// </summary> |
| privatestaticstringGenerateKey(intiKeySize) |
| { |
| RijndaelManagedaesEncryption=newRijndaelManaged(); |
| aesEncryption.KeySize=iKeySize; |
| aesEncryption.BlockSize=128; |
| aesEncryption.Mode=CipherMode.CBC; |
| aesEncryption.Padding=PaddingMode.PKCS7; |
| aesEncryption.GenerateIV(); |
| stringivStr=Convert.ToBase64String(aesEncryption.IV); |
| aesEncryption.GenerateKey(); |
| stringkeyStr=Convert.ToBase64String(aesEncryption.Key); |
| stringcompleteKey=ivStr+','+keyStr; |
| returnConvert.ToBase64String(ASCIIEncoding.UTF8.GetBytes(completeKey)); |
| } |
| /// <summary> |
| /// Encrypt |
| /// From : www.chapleau.info/blog/2011/01/06/usingsimplestringkeywithaes256encryptioninc.html |
| /// </summary> |
| privatestaticstringEncrypt(stringiPlainStr, stringiCompleteEncodedKey, intiKeySize) |
| { |
| RijndaelManagedaesEncryption=newRijndaelManaged(); |
| aesEncryption.KeySize=iKeySize; |
| aesEncryption.BlockSize=128; |
| aesEncryption.Mode=CipherMode.CBC; |
| aesEncryption.Padding=PaddingMode.PKCS7; |
| aesEncryption.IV=Convert.FromBase64String(ASCIIEncoding.UTF8.GetString(Convert.FromBase64String(iCompleteEncodedKey)).Split(',')[0]); |
| aesEncryption.Key=Convert.FromBase64String(ASCIIEncoding.UTF8.GetString(Convert.FromBase64String(iCompleteEncodedKey)).Split(',')[1]); |
| byte[] plainText=ASCIIEncoding.UTF8.GetBytes(iPlainStr); |
| ICryptoTransformcrypto=aesEncryption.CreateEncryptor(); |
| byte[] cipherText=crypto.TransformFinalBlock(plainText, 0, plainText.Length); |
| returnConvert.ToBase64String(cipherText); |
| } |
| /// <summary> |
| /// Decrypt |
| /// From : www.chapleau.info/blog/2011/01/06/usingsimplestringkeywithaes256encryptioninc.html |
| /// </summary> |
| privatestaticstringDecrypt(stringiEncryptedText, stringiCompleteEncodedKey, intiKeySize) |
| { |
| RijndaelManagedaesEncryption=newRijndaelManaged(); |
| aesEncryption.KeySize=iKeySize; |
| aesEncryption.BlockSize=128; |
| aesEncryption.Mode=CipherMode.CBC; |
| aesEncryption.Padding=PaddingMode.PKCS7; |
| aesEncryption.IV=Convert.FromBase64String(ASCIIEncoding.UTF8.GetString(Convert.FromBase64String(iCompleteEncodedKey)).Split(',')[0]); |
| aesEncryption.Key=Convert.FromBase64String(ASCIIEncoding.UTF8.GetString(Convert.FromBase64String(iCompleteEncodedKey)).Split(',')[1]); |
| ICryptoTransformdecrypto=aesEncryption.CreateDecryptor(); |
| byte[] encryptedBytes=Convert.FromBase64CharArray(iEncryptedText.ToCharArray(), 0, iEncryptedText.Length); |
| returnASCIIEncoding.UTF8.GetString(decrypto.TransformFinalBlock(encryptedBytes, 0, encryptedBytes.Length)); |
| } |
| #endregion |
commented Jun 6, 2014
hi fairly new to the cryptography.. please suggest a resolution |
commented Oct 9, 2017 • edited
edited
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