rijndael

问题 I'm working on a project built in pure php, i'm doing a rework on the login, but the users in the database are cipher in Rijndael-256, i've tried a lot of things and nothing seems to work, and i feel i'm so close with this code, but it doesn't work, and i'm really lost private final String key = "..."; public String decrypt(String password, String cypherKey) { try { password = password.substring(0, password.lenght() - 1); // 1 byte[] passwordBytes = password.getBytes("UTF-8"); byte[] key =

问题 We have a requirement to do some Rijndael development in Java. Any recommendations for articles, libraries etc. that would help us? Any pointers to keystore maintenance and how store the keys securely? Edit: It would need to be open source. Essentially, it's just standard encrypt / decrypt of data using Rijndael. 回答1: Java includes AES out of the box. Rijndael is AES. You don't need any external libraries. You just need something like this: byte[] sessionKey = null; //Where you get this from

问题 for these 2 libraries, Delphi Encryption Compendium v 5.2 TurboPower Lockbox v 2.07 I tested their Rijndael DCB/CBC algorithm with "AES Known Answer Test (KAT) Vectors" obtained at NIST website (http://csrc.nist.gov/groups/STM/cavp/index.html) But, both of these libraries failed the tests. Not sure if it was my testing that has error, has anyone tested them before as well? I am looking for a Delphi Rijndael library that is able to pass the KAT Vectors test. Does anyone know of any such

问题 A PHP application I'm maintaining uses Rijndael_256 with EBC_MODE encryption with mcrypt. Fun has it that the key isn't 256 bits long, but only 160. According to the mcrypt_encrypt documentation the key is padded with \0 to get the required size if it's too small. The key with which the data will be encrypted. If it's smaller than the required keysize, it is padded with '\0'. It is better not to use ASCII strings for keys. This seem to happen at around the start of line 1186 in mcrypt.c and

问题 A PHP application I'm maintaining uses Rijndael_256 with EBC_MODE encryption with mcrypt. Fun has it that the key isn't 256 bits long, but only 160. According to the mcrypt_encrypt documentation the key is padded with \0 to get the required size if it's too small. The key with which the data will be encrypted. If it's smaller than the required keysize, it is padded with '\0'. It is better not to use ASCII strings for keys. This seem to happen at around the start of line 1186 in mcrypt.c and

问题 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"

问题 UPDATED I have made the changes to the C# code so it uses a block size of 256. but now the hello world looks like this http://pastebin.com/5sXhMV11 and I cant figure out what I should use with rtrim() to get ride of the mess at the end. Also when you say the IV should be random, by this do you mean don't use the same IV more then once or is the way I have coded it wrong? Thanks again! Hi, I'm trying to decrypt a string with PHP that was encrypted in C#. I can't seem to get PHP to decrypt it

问题 I have data that was encrypted in PHP as follows: mcrypt_encrypt(MCRYPT_RIJNDAEL_256, SECRET, $data, MCRYPT_MODE_CBC, $iv) I need to decrypt this data in a Python 3 application. I am trying to use PyCrypto but I am open to other libraries. I expect the following to work: decryptor = AES.new(key, mode, IV=IV) plain = decryptor.decrypt(ciphertext) My initialization vector is 32 bytes, and the following exception is thrown: ValueError: IV must be 16 bytes long How can I set PyCrypto to use a 32

问题 I have to following code and as far as I know it is correct, but it does not work. I am trying to encode data with PHP's Mcrpyt and then decode it with the openssl commandline tool. This is my PHP code: /* * Convert a normal ascii string to a hexadecimal string. * Complement of hexToString(). */ function stringToHex($str) { $hex_str = ""; for ($i = 0; $i < strlen($str); ++$i) { $hex_str .= sprintf("%02X", ord($str[$i])); } return $hex_str; } $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT

问题 I am developing an Android application that consumes a WS. For exchange of information between the android application and WebService, you must use the algorithm encryption / decryption Rijndael with 256 bit key. That is, all the information returned from the WS, will be encrypted, so I decrypts them using the algorithm. Likewise, all the information I send to WS should be encrypted. Therefore, I will use the encryption algorithm. I have not found the Rijndael ready to be used in the android