aes

Using PowerShell to decrypt a Python encrypted String

由 江枫思渺然 提交于 2020-01-06 06:51:25
问题 I am using a python program to take a large string (256 bytes or more) and encrypt it using AES-CBC. This would happen on a Linux system then the encrypted data would be transferred to a windows machine where it would be decrypted. I am able to encrypt the data in python, but cannot decrypt the data in PowerShell. I believe my issue is with the PowerShell code, but am not completely sure. In PowerShell I am getting a large string of ASCII characters as my output: IV is equal to 81 114 150 34

replace JCE with Bouncycastle jar

由 别来无恙 提交于 2020-01-06 05:07:09
问题 I have to get rid of JCE jars and should be replaced with bouncy castle jar for AES encryption and decryption. I am getting invalid key size exception when i replace JCE policy jars with BC jars for AES 256 algorithm. But it works well with key size 128. How can i make use of BC jars in case of AES 256 algorithm. Thanks. 回答1: This answer assumes that it is not possible to install the unlimited strength jurisdictional cryptography files using the scripting mentioned. The key size restraint of

crypto wrong AES-256-ecb encrypt

由 南楼画角 提交于 2020-01-06 04:56:07
问题 I tried to encrypt "aaaaaaaaaaa" in aes-256-ecb var encrypt = function(cryptkey, cleardata) { var encipher = crypto.createCipher('aes-256-ecb', cryptkey); return Buffer.concat([ encipher.update(cleardata), encipher.final() ]); } var hex_key = [0x2A,0x46,0x29,0x4A,0x40,0x4E,0x63,0x52,0x66,0x55,0x6A,0x58,0x6E,0x32,0x72, 0x35,0x75,0x38,0x78,0x2F,0x41,0x3F,0x44,0x28,0x47,0x2B,0x4B,0x61,0x50,0x64,0x53,0x67] var _text = new Buffer([0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61]) console

“Invalid algorithm specified” when using AES with OFB cipher mode (VB.NET)

由 半世苍凉 提交于 2020-01-06 03:31:06
问题 I have to use AES encryption with OFB cipher mode , I use VB.NET 4.5 ,windows 8 and the following code: Public Function DoEncryption(ByVal KeyArray() As Byte, ByVal IVArray() As Byte, ByVal Buffer As String) As Byte() Dim encrypted() As Byte Using a As Aes = Aes.Create() a.Mode = CipherMode.OFB Dim encryptor As ICryptoTransform encryptor = a.CreateEncryptor(KeyArray, IVArray) ' Create the streams used for encryption. Using msEncrypt As New MemoryStream() Using csEncrypt As New CryptoStream

attempting to decrypt using crypto-js and nodejs

由 穿精又带淫゛_ 提交于 2020-01-05 11:57:06
问题 I am communicated back and forth between a micro-controller and a nodejs tcp server. The micro-controller forms a json string with sensor data. The micro-controller then sends the json string to a WiFi module. The WiFi module then encrypts the data using AES256 with 32 character Hexadecimal characters as the key before sending the encrypted data to the nodejs tcp server. The nodejs TCP server is using the Crypto-JS module form of the googlecode Crypto-JS. For testing purposes I would like to

Blackberry AES encryption error

由 徘徊边缘 提交于 2020-01-05 09:23:26
问题 I have implemented AES encryption in BlackBerry using code from the Knowledge Base Article "How to - Use Advanced Encryption" I keep getting error: Module 'net_rim_crypto' not found. In the code I have imported net.rim.device.api.crypto.*; package, but I can't find the package net.rim.crypto. Do I need to add any external jar for that? 回答1: You should install JRE 4.6 and set the API level to 4.6 and OS of the target device should be higher than JRE version. 回答2: If you have problem with

php与java通用AES加密解密算法

由 ╄→尐↘猪︶ㄣ 提交于 2020-01-04 03:42:01
AES指高级加密标准（Advanced Encryption Standard）,是当前最流行的一种密码算法，在web应用开发，特别是对外提供接口时经常会用到，下面是我整理的一套php与java通用的AES加密解密算法。 php版代码如下： <?php class CryptAES { protected $cipher = MCRYPT_RIJNDAEL_128; protected $mode = MCRYPT_MODE_ECB; protected $pad_method = NULL; protected $secret_key = '' ; protected $iv = '' ; public function set_cipher( $cipher ) { $this ->cipher = $cipher ; } public function set_mode( $mode ) { $this ->mode = $mode ; } public function set_iv( $iv ) { $this ->iv = $iv ; } public function set_key( $key ) { $this ->secret_key = $key ; } public function require_pkcs5() { $this ->pad_method

php与java通用AES加密解密算法

由 让人想犯罪 __ 提交于 2020-01-04 03:41:32
AES指高级加密标准（Advanced Encryption Standard）,是当前最流行的一种密码算法，在web应用开发，特别是对外提供接口时经常会用到，下面是我整理的一套php与java通用的AES加密解密算法。 php版代码如下： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 <?php

java AES 加密与解密

由 混江龙づ霸主 提交于 2020-01-04 03:39:24
package com . ss . util . secret ; import java.io.UnsupportedEncodingException ; import java.security.InvalidKeyException ; import java.security.NoSuchAlgorithmException ; import javax.crypto.BadPaddingException ; import javax.crypto.Cipher ; import javax.crypto.IllegalBlockSizeException ; import javax.crypto.KeyGenerator ; import javax.crypto.NoSuchPaddingException ; import javax.crypto.SecretKey ; import javax.crypto.spec.SecretKeySpec ; /** ** * AES128 算法，加密模式为ECB，填充模式为 pkcs7（实际就是pkcs5） * * */ public class AESUtils { /** * 加密 * * @param content 需要加密的内容 * @param key 加密密码 * @return */ public

java AES加密解密

由 别来无恙 提交于 2020-01-04 03:38:54
近些年DES使用越来越少，原因就在于其使用56位密钥，比较容易被破解，近些年来逐渐被AES替代，AES已经变成目前对称加密中最流行算法之一；AES可以使用128、192、和256位密钥，并且用128位分组加密和解密数据。本文就简单介绍如何通过JAVA实现AES加密。 因为在做接口 webservice的时候接受穿过的数据 是xml 加密为二进制 byte[] 下面直接看代码 : import java.io.UnsupportedEncodingException; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.security.SecureRandom; import javax.crypto.BadPaddingException; import javax.crypto.Cipher; import javax.crypto.IllegalBlockSizeException; import javax.crypto.KeyGenerator; import javax.crypto.NoSuchPaddingException; import javax.crypto.SecretKey; import javax
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