aes

问题 This is not a duplicate post because I have looked everywhere and I can't find an answer to this. Its about partial decryption. Not full. I have a good knowledge of PHP but little knowledge about cryptography. I know the key and the iv of the crypted file. The file is decrypting fine as whole but the real issue arises when I try to decrypt the partial file from the middle. It decrypts fine when I try to decrypt the first 128kb of the file or 256kb or any length from the beginning of the file.

问题 Could someone please help decrypt the base64 string generated by iOS code below into its C# equivalent. I am trying to end up with "Meet me at the secret location at 8pm" within c#. iOS generated the following encryption: qd+SGaij5KSBScuLs3TpJS/3Dew8fHTudcs/5MG7Q1kqcrZzZycMgTcQuEEEED5f This iOS code successfully encrypts and decrypts data as required within XCode 6. Thank you in advance for your help and support. Darren #import <CommonCrypto/CommonCryptor.h> - (void)viewDidLoad { [super

问题 Is it possible to use AES in XTC mode in C# (.net 3.5)? It doesn't seem to be in the CipherMode enumeration. I cannot seem to find any implementations of it on the web. EDIT: Since I couldn't find a .net implementation, I wrote one: https://bitbucket.org/garethl/xtssharp 回答1: I have since written a C# implementation of XTS mode (using the built in AES cipher in .net), and released it under a BSD license. You can find it here: https://bitbucket.org/garethl/xtssharp 回答2: Here is the link to a

问题 Plain text : Encrypt and decrypt text with AES algorithm Key (256) : testsecret Result (https://aesencryption.net/) : iFhSyFY3yYoO2G6GVGkdhZJjD+h0Pxv5fQnO3xIarzuGQSkIxlrpSprC5bC3gJ2U i use small code in object to decrypt this this text : (NSData*)AES256DecryptWithKey:(NSString*)key { // 'key' should be 32 bytes for AES256, will be null-padded otherwise char keyPtr[kCCKeySizeAES256 + 1]; // room for terminator (unused) bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding) // fetch

问题 Ahoy there! My first posting, be gentle! Windows 7 SrvPck 1, node v0.12.3, npm 2.9.1, aes256 cipher This is throwing me... it's also throwing a very basic error when I retrieve sample data from a client using TCP. My test configuration is on Windows 7 SrvPck 1 with node v0.12.3 and npm 2.9.1. My client/server are on the same Windows machine with port 5000 as the server. This inquiry is based on this posting which I found very informative - I'm new to node.js and crypto! Unfortunately I've

问题 I have a PowerShell script (below) that successfully encrypt and decrypt string values using a specific key (as a string). Now I'm trying to write a C# method that can decrypt a value using the same key, but I'm not sure how to use PasswordDeriveBytes correctly. Also, I'm trying to specify the Mode and Padding for the AesManaged object to match the PowerShell script (I understand that CBC mode is most secured, but I would change it if something else is working better). Any help or directions

问题 I am inserting the values into the database but i need the password to be encrypted and then insert the special characters to it. I am using mysql database and coding is done in normal php program. PHP PROGRAM $mysecretkey = 'd5k8b6q3'; $password=(AES_ENCRYPT('$v4','$mysecretkey')); // problem is here in encryption $q="insert into customers (name,username,email,password) values('$v1','$v2','$v3','$password')"; $s= mysql_query($q); if(!$s) { $r["re"]="Inserting problem in database"; print(json

问题 I would like to limit the length of the encrypted output code like 8 or 10 or 12 character etc. I have created the very small encrypted coed using he "Advanced Encryption Standard (AES)" with Cryptography.SymmetricAlgorithm.IV. But the result of the Encrypted code as example below: Input Password = "090400551" Converted Output = "mkopj3WFb6RZMp34urFLew==" // This should be half the length I want to reduce the length of 8 to 12 character. Any C# cryptography library or algorithm would be fine

问题 I have been struggling with decrypting some data that is being encrypted on a Unix machine via SSL, I keep getting padding errors, and am unsure what it is that I am missing. The encrypted file is a simple text file just saying "Hello World". The encryption command used in unix is: openssl enc -base64 -aes-256-cbc -k 12345678901234567890123456789012 -in test.txt -out cbc64.txt I have 2 methods that I am using to decrypt: private static CipherMode sCipherMode = CipherMode.CBC; private static

问题 I am working with third party API in which I have to send data in aes-128 encrypted form. For help in encryption/decryption they have given me java code. I have tried to replicate it in Node.js but i am unable to apply same encrytion as pergive java code hence I am facing error. The working code in java is - public class AesCryptUtil { Cipher ecipher; /** * Input a string that will be md5 hashed to create the key. * * @return void, cipher initialized */ public AesCryptUtil() { try {