aes

does ruby-aes use padding by default?

由 China☆狼群 提交于 2019-12-10 00:36:37
问题 I am using the following in a RoR project: somepass =Aes.encrypt_buffer(128, 'ECB', some_cypher_key, nil, pain_string) Does using this lib and method ECB use padding by default or not? What I am ultimately trying to do is have a RoR app and a Java app be able to create the same encrypted string out of the same simple string. In Java code I use: cipher = Cipher.getInstance("AES/ECB/PKCS5Padding", "SunJCE"); These two lines of code do not create the same encrypted key. 回答1: Aes.encrypt_buffer

AES,SHA1,DES,RSA,MD5区别

由 吃可爱长大的小学妹 提交于 2019-12-10 00:12:25
AES：更快，兼容设备，安全级别高； SHA1：公钥后处理回传 DES：本地数据，安全级别低 RSA：非对称加密，有公钥和私钥 MD5：防篡改 相关： 公开密钥加密（英语：public-key cryptography，又译为公开密钥加密），也称为非对称加密（asymmetric cryptography），一种密码学算法类型，在这种密码学方法中，需要一对密钥，一个是私人密钥，另一个则是公开密钥。这两个密钥是数学相关，用某用户密钥加密后所得的信息，只能用该用户的解密密钥才能解密。如果知道了其中一个，并不能计算出另外一个。因此如果公开了一对密钥中的一个，并不会危害到另外一个的秘密性质。称公开的密钥为公钥；不公开的密钥为私钥。 DES现在已经不是一种安全的加密方法，主要因为它使用的56位密钥过短。1999年1月，distributed.net与电子前哨基金会合作，在22小时15分钟内即公开破解了一个DES密钥。也有一些分析报告提出了该算法的理论上的弱点，虽然在实际中难以应用。为了提供实用所需的安全性，可以使用DES的派生算法3DES来进行加密，虽然3DES也存在理论上的攻击方法。在2001年，DES作为一个标准已经被高级加密标准（AES）所取代。另外，DES已经不再作为国家标准科技协会（前国家标准局）的一个标准。 高级加密标准（英语：Advanced Encryption

AES,SHA1,DES,RSA,MD5区别 

由 牧云@^-^@ 提交于 2019-12-09 23:52:55
AES,SHA1,DES,RSA,MD5区别 加密 版权声明：本文为博主原创文章，未经博主允许不得转载。 AES：更快，兼容设备，安全级别高； SHA1：公钥后处理回传 DES：本地数据，安全级别低 RSA：非对称加密，有公钥和私钥 MD5：防篡改 相关： 公开密钥加密（ 英语 ： public-key cryptography ，又译为公开密钥加密），也称为非对称加密（asymmetric cryptography），一种 密码学 算法 类型，在这种密码学方法中，需要一对密钥，一个是私人密钥，另一个则是公开密钥。这两个密钥是数学相关，用某用户密钥加密后所得的信息，只能用该用户的解密密钥才能解密。如果知道了其中一个，并不能计算出另外一个。因此如果公开了一对密钥中的一个，并不会危害到另外一个的秘密性质。称公开的密钥为公钥；不公开的密钥为私钥。 DES现在已经不是一种安全的加密方法，主要因为它使用的56位密钥过短。1999年1月， distributed.net 与 电子前哨基金会 合作，在22小时15分钟内即公开破解了一个DES密钥。也有一些分析报告提出了该算法的理论上的弱点，虽然在实际中难以应用。为了提供实用所需的安全性，可以使用DES的派生算法 3DES 来进行加密，虽然3DES也存在理论上的攻击方法。在2001年，DES作为一个标准已经被高级加密标准（AES）所取代。另外

RNCryptor AES256 to match PHP MCRYPT_RIJNDAEL_256

由 为君一笑 提交于 2019-12-09 20:50:41
问题 The PHP API I’m calling from within my iOS app requires the payload to be encrypted in a certain customised way. I’m having troubles replicating that approach in Objective-C, with RNCryptor. Here is the PHP code used to encrypt a string: function encrypt($string) { $key = 'some-random-key'; return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $string, MCRYPT_MODE_CBC, md5(md5($key)))); } And this how I’m trying to achieve the same encryption result in Objective-C: + (NSData*

AES encrypt in cryptojs and decrypt in python Crypto.Cipher

由 廉价感情. 提交于 2019-12-09 20:39:50
问题 Getting problem with encrypt using js CryptoJS and decrypt that using python crypto.Cipher This is my implementation in js, append iv with encrypted message and encode with base64 <script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/aes.js"></script> <script> var message='Secreat Message to Encrypt'; var key = CryptoJS.enc.Hex.parse('824601be6c2941fabe7fe256d4d5a2b7'); var iv = CryptoJS.enc.Hex.parse('1011121314151617'); var encrypted = CryptoJS.AES.encrypt(message, key,

teamcity aes256-cbc error when retrieving git repository

由 六眼飞鱼酱① 提交于 2019-12-09 14:41:02
问题 I've just installed Teamcity 8.0.3 on a fresh Windows Server 2012 machine. Installation was successful, and I'm trying to configure an agent in order to fetch a project stored in a git server. This server uses a ssh key. I've added it to my agent, but when it tries to retrieve the project this error appears. Failed for the root 'rtogit' #1: List remote refs failed: com.jcraft.jsch.JSchException: The cipher 'aes256-cbc' is required, but it is not available. I've seen, for example here that I

Android Java AES Encryption

由 前提是你 提交于 2019-12-09 14:14:43
问题 I am currently making an Android app that includes encrypting a String with AES. But for some reason my app does not decrypt properly. I tried to change the Base64 format but it does not fix it. The code is similar to the example on Android Encryption with the Android Cryptography API Does anyone know where did I go wrong with my functions? Since it does not decode to the same string as my encoded string ("pls"). Your help is much appreciated. byte[] a = encryptFIN128AES("pls"); String b =

Decrypt in PHP with Salt, password, and type?

由 落爺英雄遲暮 提交于 2019-12-09 14:14:26
问题 When I run Crypto-JS's encrypt function, I am given the base64-encoded following: var crypted = CryptoJS.AES.encrypt("Message", "Secret Passphrase", {mode: CryptoJS.mode.CBC}).toString(); ==> "U2FsdGVkX19HKyOimD43Bl4ww/I40M+NQrscjti3ZnA=" How do I unencrypt this in PHP in the future? I have attempted using openSSL, mcrypt, etc, and nothin seems to work -- I guess I don't know how to deal with base64 encoding, salting, VI, and everything... Something goes wrong somewhere. 回答1: JS // encrypt

Loading Encrypted JarFile Via URLCassloader

由 。_饼干妹妹 提交于 2019-12-09 13:59:38
问题 I've been writing a little system to dynamically load AES encrypted jar files. My code: public static void main(String args[]) throws Exception { String jar = "http://site.com/api/rsc/test.jar"; List<URL> urls = new ArrayList<URL>(); urls.add(getURL(jar)); URL jarurl = urls.get(0); ObjectInputStream ois = new ObjectInputStream((new URL("http://site.com/api/rsc/key_1.txt").openStream())); Object o = ois.readObject(); DESKeySpec ks = new DESKeySpec((byte[])o); SecretKeyFactory skf =

C# / Java | AES256 encrypt/decrypt

由 混江龙づ霸主 提交于 2019-12-09 13:54:07
问题 I want to encrypt all the data I send through the Java/C# sockets (Java server, C# client). I would like to use AES256, but I can't get the Java and C# to generate the same encrypted code. Can anyone give me two examples, 1 in Java and 1 in C# that generate the same results and decrypts the results properly? What I tried so far: public Encrypt(AOBCore instance){ try { String message="This is just an example"; // Get the KeyGenerator KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgen
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