rijndaelmanaged

I am using RijndaelManaged to make a simple encryption/decryption utility. This is working fine, but I am trying to get it integrated with another program which is created in Unix (Oracle). My problem is, for all smaller input string, i am getting the exact same encrypted hex as the Unix code is generation, but for longer strings, half of my encrypted hex is same, but the other half is different: Unix Output: 012345678901234 - 00984BBED076541E051A239C02D97117 0123456789012345678 - A0ACE158AD8CF70CEAE8F76AA27F62A30EA409ECE2F7FF84F1A9AF50817FC0C4 Windows Output (my code): 012345678901234 -

I need to transfer xml files and they are required to be encrypted. I have found some examples think I'm close but when I decrypt the file I end up with trailing junk characters. There are some posts about this but I have not seen any that will exactly help. Here is the encrypt and decrypt code. private void EncryptFile(string inputFile, string outputFile, string key) { try { byte[] keyBytes; keyBytes = Encoding.Unicode.GetBytes(key); Rfc2898DeriveBytes derivedKey = new Rfc2898DeriveBytes(key, keyBytes); RijndaelManaged rijndaelCSP = new RijndaelManaged(); rijndaelCSP.Key = derivedKey.GetBytes

For new RijndaelManaged(), the documentation says it supports keys of 128 bits and up to 256 bits. When you instantiate new RijndaelManaged(), it creates the Key and IV for you. What size does it default to, 128 bits? The default key size is 256 bits, while the default blocksize is 128 bits. 来源： https://stackoverflow.com/questions/281158/rijndaelmanaged-supports-128-256-bit-key-what-key-size-the-default-constructor

I'm running into an issue with an ASP.NET 2.0 application. Our network folks just upped our security, and now I get the floowing error whenever I try to access the app: "This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms." I've done a little research, and it sounds like ASP.NET uses the RijndaelManaged AES encryption algorithm to encrypt the ViewState of pages... and RijndaelManaged is on the list of algorithms that aren't FIPS compliant. We're certainly not explicitly calling any encryption algorithm... much less anything on the non-compliant list.

I'm in a situation where I need to encrypt / decrypt a file of n length securely, ideally using Rijndael, but definitely at 256bit encryption. I've played around with encryption before and have encrypted/decrypted strings and byte arrays quite happily. However, because I don't know the size of the file (and it's very feasible that the files in question could be quite large (~2.5gb) I can't just load them up into a byte array and enc/decrypt them in a single bound as I have before. So, after a bit of reading around on Google, I knew the answer was to encrypt and decrypt the file in chunks, and

I am trying to decrypt something, which was encrypted using RijndaelManaged of .NET/C#, using Java to decrypt. The C# program is not mine; I cannot change it to be more interoperable. But I know how it is encrypting: byte[] bytes = new UnicodeEncoding().GetBytes(password); // edit: built-in is 8chars FileStream fileStream = new FileStream(outputFile, FileMode.Create); RijndaelManaged rijndaelManaged = new RijndaelManaged(); CryptoStream cryptoStream = new CryptoStream((Stream) fileStream, rijndaelManaged.CreateEncryptor(bytes, bytes), CryptoStreamMode.Write); I do not know how to decrypt this

I'm trying to encrypt and decrypt with the following functions, however, it results in a bad padding error. If I set PaddingMode to None it returns some alpha characters and random symbols in Log. I'm possibly missing something from setting the correct structure which is as follows: Cipher Rijndael (AES) Block Size 128 bits (16 bytes) Mode CBC (Cipher Block Chaining) Key MD5 hash passphrase IV Same as the key Data Encoding Base64 Character UTF-8 Encoding Any help fixing this error and any assistance with ensuring the above structure is met would be greatly appreciated! Thanks Error