Fixed a memory leak that occurs in specific scenarios. It has fix for the following three types of issues:ġ. The detailed hotfix information is listed on. The latest version of AF 1.1 CU (cumulative update) 8 was released on, and available on. Now you can use CryptDecrypt function to decrypt the file using the private key. Using (var fs = new FileStream(encryptedFileName, FileMode.Create))įs.Write(encryptedData, 0, encryptedData.Length) Using (var rsa = new RSACryptoServiceProvider())īyte array = (input) īyte encryptedData = rsa.Encrypt(array, false) Īrray.Reverse(encryptedData, 0, encryptedData.Length) To interoperate with CAPI, you must manually reverse the order of the encrypted bytes before the encrypted data interoperates with another API. By default, data encrypted by the RSACryptoServiceProvider class cannot be decrypted by the CAPI CryptDecrypt function and data encrypted by the CAPI CryptEncrypt method cannot be decrypted by the RSACryptoServiceProvider class. Please note: Unlike the RSA implementation in unmanaged CAPI, the RSACryptoServiceProvider class reverses the order of an encrypted array of bytes after encryption and before decryption.
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The entire code succeeds if at the 3 rd step you encrypt the file in C++. If (!CryptDecrypt(hKey, NULL, TRUE, CRYPT_DECRYPT_RSA_NO_PADDING_CHECK, pbData, &dwDataLen)) _tprintf(_T(“CryptDecrypt error 0x%x\n”), GetLastError()) Ĭhanging dwFlags (the 4 th parameter to CryptDecrypt) to CRYPT_DECRYPT_RSA_NO_PADDING_CHECK (see code below) will make the API succeed but the decryption result is undesirable. If (!CryptDecrypt(hKey, NULL, TRUE, 0, pbData, &dwDataLen)) This failure happens when you decrypt using the CryptDecrypt() API as shown in the code below. You might get a failure with error code of 0x57 ( Error code: (Win32) 0x57 (87) – The parameter is incorrect). Using (var rsa = new RSACryptoServiceProvider(2048)) Public void GenerateKeys(out byte privateKey, out byte publicKey) Generate the private and public keys in C#.Interoperate between C# & C++ using cryptographic blobs.
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