aes

I have an encrypted string from one of our customers. This string was encrypted using the AES method in Java. The only thing I have is the key: "xxxxxxxxxxxxxxxxxxxxxxxx" (24 chars) and the encrypted text: "56e84e9f6344826bcfa439cda09e5e96" (32 chars). (This really is the only data I have) I can't seem to find a method to decrypt this string. Could anyone provide me with a working example. Filip Ekberg Here are two complete code samples for you: How To: Encrypt and Decrypt Data Using a Symmetric (Rijndael) Key How To: Encrypt Data With Salt (C#/VB.NET) You might also find c# implementations of

The MSDN link provides references to concrete AES classes: System.Security.Cryptography.AesCng System.Security.Cryptography.AesCryptoServiceProvider System.Security.Cryptography.AesManaged However AesCryptoServiceProvider is for older machines and AesManaged is not certified for FIPS. So the only option is AesCng. The AesCng has a property called Mode, which will only take: CBC, ECB, OFB, CFB, CTS but no GCM . Is AES GCM supported on this framework? If yes, is there an example? If no, then what are my options? This answer reflects the comments from Luke Park, bartonjs, Timo, aand Maarten

文章1： 这一篇文章要解决数据加密——数据补位的问题、DES算法的两种模式ECB和CBC问题以及更加安全的算法——3DES算法。 一、数据补位 DES数据加解密就是将数据按照8个字节一段进行DES加密或解密得到一段8个字节的密文或者明文，最后一段不足8个字节，按照需求补足8个字节（通常补00或者FF，根据实际要求不同）进行计算，之后按照顺序将计算所得的数据连在一起即可。 这里有个问题就是为什么要进行数据补位？主要原因是DES算法加解密时要求数据必须为8个字节。 二、ECB模式 DES ECB（电子密本方式）其实非常简单，就是将数据按照8个字节一段进行DES加密或解密得到一段8个字节的密文或者明文，最后一段不足8个字节，按照需求补足8个字节进行计算，之后按照顺序将计算所得的数据连在一起即可，各段数据之间互不影响。 三、CBC模式 DES CBC（密文分组链接方式）有点麻烦，它的实现机制使加密的各段数据之间有了联系。其实现的机理如下： 加密步骤如下： 1）首先将数据按照8个字节一组进行分组得到D1D2......Dn（若数据不是8的整数倍，用指定的PADDING数据补位） 2）第一组数据D1与初始化向量I异或后的结果进行DES加密得到第一组密文C1（初始化向量I为全零） 3）第二组数据D2与第一组的加密结果C1异或以后的结果进行DES加密，得到第二组密文C2 4）之后的数据以此类推

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

I have the following code which encrypts/decrypts data for me in java I need to encrypt/decrypt data in C# on a windows phone(8) device and same data should be able to decrypt/encrypt using this java code. what would be the equivalent code of this java code in C# in Windows Phone?? public class AESencrp { private static final String ALGO = "AES"; private static final byte[] keyValue = new byte[] { 'S', 'D', 'P', 'i', 'b', 'm', 'B','H', 'A', 'R', 'T','I', 'P', 'K', 'e', 'y' }; public static String encrypt(String Data) throws Exception { System.out.println(".............Encryption start.........

背景：需要获取58同城上面发布的职位信息，其中的包括职位的招聘要求，薪资福利，公司的信息，招聘者的联系方式。（中级爬虫的难度系数） 职位详情页分析 某个职位详情页的链接 https://qy.m.58.com/m_detail/29379880488200/ 打开以上链接并且F12进入开发者模式 我们可以看见联系方式需要登陆后才可以查看。 登陆后，右击鼠标查看页面的源码，发现html页面并没有电话号码，这里初步的猜测是通过ajax来加载渲染的（一般都是这种套路） 全局搜索分析 由上面可见联系方式所在的div块是mobMsg和freecall，全局对这两个关键字做搜索，一步一步走下去。 <div class="msgGui"> <h3>联系方式</h3> </div> <dl> <dt>联系电话：</dt> <dd class="mobMsg"> <div id="freecall"></div> </dd> <dt>电子邮箱：</dt> <dd>456151546@QQ.COM</dd> <dt>公司网址：</dt> <dd class="bColr"> <a href="http://http://WWW.SHSHENXINGKEMAO.COM">http://http://WWW.SHSHENXINGKEMAO.COM</a> </dd> </dl></div> 　　 可惜的是

I am writing a code to encrypt and decrypt with crypto++ library .I found a code to encrypt and decrypt which is shown below.The code works OK as one program.but when I divide into two c++ programs (One for encryption and another for decryption) the decryption pargram gives me error terminate called after throwing an instance of 'CryptoPP::InvalidCiphertext' what(): StreamTransformationFilter: ciphertext length is not a multiple of block size The ciphertext I get after encryption is ���z=(f�����P%���2��W3�p�H�����^��@C��#������bp���nx�� which I transfer into the decryption code. What am I