aes | 易学教程

Decrypting AES cipher text using CryptoJS

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问题 I am trying to follow the instructions seen in the image to complete mutual authentication between a bluetooth smartcard reader and a mobile application. Based on how I've interpreted the instructions, here is my attempt: const randomNumbers = 'd3be845b701b37eff9f24ea6108c0f99'; const masterKey = '41435231323535552d4a312041757468'; const d1 = CryptoJS.AES.decrypt( { ciphertext: CryptoJS.enc.Hex.parse(randomNumbers), }, CryptoJS.enc.Hex.parse(masterKey), { iv: CryptoJS.enc.Hex.parse(

iOS CCCrypt padding issue when encrypting on iPhone, decrypting on .Net server with System.Security.Cryptography

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问题 This is a head-scratcher. And it involves encryption making it particularly gnarly! I have Objective-C code which uses CCCrypt to AES 128 encrypt a message on an iPhone which I send using Protocol Buffers and AsyncSockets. The iOS code is as follows: - (NSData *)AES128EncryptWithKey:(const char *)keyPtr { NSUInteger dataLength = [self length]; //See the doc: For block ciphers, the output size will always be less than or //equal to the input size plus the size of one block. //That's why we

openssl_encrypt & AES256

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问题 maybe someone know how do this on PHP echo "TEST" | openssl enc -e -aes-256-cbc -k 123456 -a -md md5 i will try like $iv = openssl_random_pseudo_bytes(16); $data = base64_encode(openssl_encrypt('TEST', 'aes-256-cbc', $password, OPENSSL_RAW_DATA, $iv)); but not success.. 回答1: Interestingly, like the version at https://linux.die.net/man/1/enc , the man page for my local openssl installation lists '-md' (without an argument) as an option for openssl enc - but doesn't seem to explain what its for

is sjcl.encrypt using AES or SHA256

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问题 I'm using the SJCL library to encrypt/decrypt messages. The question I have is that I don't know which is used AES or SHA256 Here is my code: var h = sjcl.codec.hex, count = 2048 ; salt = h.fromBits(sjcl.random.randomWords('10','0')); var key = h.fromBits( sjcl.misc.pbkdf2(somePassword, h.toBits(salt), count) ) ; Next I can encrypt/decrypt like var encMessage = sjcl.encrypt(key, message) ; sjcl.decrypt(key, encMessage) ; AES or SHA256 or something else ? 回答1: pbkdf2 for key generation is

C# and ColdFusion AES Encryption not matching

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问题 I have to encrypt url query sting in C# and pass to ColdFusion page. Can someone help me on writing encryption code using AES algorithm in C#.net that is equivalent to below ColdFusion function? Thanks in advance. <cfset strLink = Encrypt("top secret", "WTq8zYcZfaWVvMncigHqwQ==", "AES","Hex")> CF Result: strLink = 91E72250B8A7EDBC4E5AF37F04E6AB5B I tried below code in C#, but the results are not matching. byte[] plainText = Encoding.Unicode.GetBytes("top secret"); byte[] key = Convert

Interoperability between two AES algorithms

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问题 I'm new to cryptography and I'm building some test applications to try and understand the basics of it. I'm not trying to build the algorithms from scratch but I'm trying to make two different AES-256 implementation talk to each other. I've got a database that was populated with this Javascript implementation stored in Base64. Now, I'm trying to get an Objective-C method to decrypt its content but I'm a little lost as to where the differences in the implementations are. I'm able to encrypt

Making GCM/CBC ciphers streamable in golang

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问题 The GCM and CBC AES ciphers in Go can't be used along side with StreamWriter or StreamReader, which forces me to allocate the entire file into memory. Obviously, this is not ideal with large files. I was thinking of making them streamable, by allocation some fixed size of blocks into memory, and feeding them to GCM or CBC, but I'm assuming that is probably a bad idea, since there must be a reason they've been designed this way. Can someone explain why these operation modes can't be used

java AES 对称加密解密

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package com.xx.ws.util; import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import javax.xml.bind.DatatypeConverter; public class AESOperator { private String sKey = "abcdef0123456789"; private String ivParameter = "9iuj87y2hbi5wxlk"; private final String CIPHER = "AES/CBC/PKCS5Padding"; private final String AES = "AES"; private final String CHARSET = "UTF-8"; public AESOperator() { } public AESOperator(String key) { this.sKey = key; } public String encrypt(String sSrc) throws Exception { try { Cipher cipher = Cipher.getInstance("AES

How to create zip file with 256 bits encryption using php [duplicate]

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问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Create an encrypted zip archive with PHP How to create zipped file with 256 bits encryption using PHP If there is any example it'll be great 回答1: On Linux you can use 7zip to create AES encrypted zip files: exec("7z a -p$PASSWORD -mem=AES256 -tzip $ZIP $SOURCE"); Courtesy of Nfabio from http://ubuntuforums.org/archive/index.php/t-1694923.html Be sure to apply escapeshellarg(). Note: While this approach will work

implementing bouncy castle aes 256

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问题 I am working on a chat application. The main feature is to send messages in encrypted form and when they reach their destination they can be decrypted. The problem I am having is that the messages are not getting decrypted at their destination but however they reach their destination in encrypted form. How the code works: Client A sends message "Hello" to client B... When Client A clicks on button "Send message" I save that text in a String and then that String is passed along with key and iv