rijndael

So I'm trying to use PBKDF2 to derive a key given a base64 string of 256bits. I am able to use C#'s Rfc2898DeriveBytes and node-crypto's pbkdf2 to derive the same key, however, I can't say the same for C++. I'm not sure if I'm doing wrong conversions or using the functions improperly, but I'll let you guys look at it. C++ /* 256bit key */ string key = "Y1Mjycd0+O+AendY5pB58JMlmS0EmBWgjdj2r2KW6qQ="; string decodedKey; StringSource(key, true, new Base64Decoder(new StringSink(decodedKey))); const byte* keyByte = (const byte*) decodedKey.data(); /* Generate IV */ /* AutoSeededRandomPool prng; byte

I have this bit of PHP that I'd like to do the equivalent of in ColdFusion. function & _encryptMessage( $message ) { $td = mcrypt_module_open( MCRYPT_RIJNDAEL_256, '', MCRYPT_MODE_CBC, ''); mcrypt_generic_init( $td, $this->key, $this->iv ); $encrypted_data = mcrypt_generic( $td, $message ); mcrypt_generic_deinit($td); mcrypt_module_close($td); return base64_encode( $encrypted_data ); } I think it is just encrypt(message,"","AES","Base64") But I have no real way of knowing for sure and it doesn't feel quite right, so I wondered if someone out there would be good enough to point me in the right

Fixed it. $data = base64_decode(str_replace(' ', '+', $_GET['data'])); for whatever reason, Php was converting the +'s from the GET variablesinto spaces -- I am trying to decrypt a string that is being decrypted in C#.NET. The results of the code vary, There were several occasions where the final string had some parts decrypted, and the rest of it was random characters. Most of the time the "decrypted" string is just all random characters, I also tried some Php functions to remove PKCS7 padding but none of them fixed the problem. I've looked at several similar questions on the site but none of

For quite sometime I've been trying to decipher the ASP .ASPXAUTH cookie and decrypt it using PHP. My reasons are huge and I need to do this, there is no alternative. In PHP so far I have successfully managed to read the data from this cookie, but I cannot seem to do it while it is encrypted. Anyway, here it goes... First you need to alter your servers Web.config file (protection needs to be set to Validation): <authentication mode="None"> <forms name=".ASPXAUTH" protection="Validation" cookieless="UseCookies" timeout="10080" enableCrossAppRedirects="true"/> </authentication> Then in a PHP

I'm implementing in Java the communication to a third party application. As part of the login process, the third party application is sending an encrypted string that I have to decode and send back. I have spent nearly 2 days googeling and reading posts but I can't find the right way to implement this. I have a test case where the encrypted string is "c1W2YO1vYQzu6czteEidrG0U4g5gT4h57vAlP7tdjcY=" that decrypted with the password "GAT" must return "101714994". The documentation I have states this: Authorization string was encrypted with the following settings: Padding of input data: PKCS*7