aes

Is it possible to use AES128 with GCM mode on iOS?

由 会有一股神秘感。 提交于 2020-01-10 04:12:28
问题 So my question for you stackoverflow geniuses is: if there a way (native, library, framework, whatever..) to encrypt data with AES (preferably 128 but could be 256 too) using a strong Authenticated encryption algorithm , let's say GCM mode ? Question is short, I have done some research and I only found one library that seems to support it ( RNCryptor ) but it also seems to use password to crypt instead of keys (like you provide a password and the library made the key) and I don't like that a

Mac关于AES加解密报错

由 最后都变了- 提交于 2020-01-10 03:35:39
package com.almost.masters.business.comm.util; import java.io.IOException; 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.crypto.spec.SecretKeySpec; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; /** @ClassName : AESUtils

AES/CBC/PKCS5PADDING IV - Decryption in NodeJs (Encrypted in Java)

由 吃可爱长大的小学妹 提交于 2020-01-09 18:22:50
问题 I am trying to decrypt in NodeJs. It is working in Java. But I am not able to achieve same in Node. node-version: 8.4 Please find my NodeJs code: var crypto = require('crypto'); function decryption (message, key) { var messageArray = Buffer.from(message, 'base64'); // var kekbuf = Buffer(key, 'utf8'); var ivBuffer = new Buffer([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]); var iv = ivBuffer.slice(0, 16); var decipher = crypto.createDecipheriv('aes-256-cbc', key, iv); decipher.setAutoPadding(false); var

AES encryption, what are public and private keys?

由 一世执手 提交于 2020-01-09 12:20:40
问题 In AES encryption (.net framework), how are the public and private keys used? Are the public and private keys combined to form a full key, and then the algorithm uses the public + private key to encrypt the data? (simplified keys used below for example purposes) e.g. public key = 12345 private key = 67890 so the key used when generating the encryption result is: 1234567890 回答1: As others have said, AES is a symmetric algorithm (private-key cryptography). This involves a single key which is a

AES encryption, what are public and private keys?

由 给你一囗甜甜゛ 提交于 2020-01-09 12:19:06
问题 In AES encryption (.net framework), how are the public and private keys used? Are the public and private keys combined to form a full key, and then the algorithm uses the public + private key to encrypt the data? (simplified keys used below for example purposes) e.g. public key = 12345 private key = 67890 so the key used when generating the encryption result is: 1234567890 回答1: As others have said, AES is a symmetric algorithm (private-key cryptography). This involves a single key which is a

AES encryption in javascript and decrypting in java

由 ℡╲_俬逩灬. 提交于 2020-01-09 10:32:42
问题 I have an excisting webservice which encrypts and decrypts with AES, now i have to encrypt in the same way as java but in javascript. I have read all the topics about doing this in javascript but haven't found any helpfull solution. Javascript always encrypts in a different way and i can't find why. This is the excisting java code : public static String encrypt(String data) throws Exception { byte[] keyValue = encryptionKey.getBytes(); Key key = new SecretKeySpec(keyValue, "AES"); Cipher c =

Need solution for wrong IV length in AES

由 流过昼夜 提交于 2020-01-09 09:16:25
问题 I'm trying to implement AES in Java and this is the code I use: byte[] sessionKey = {00000000000000000000000000000000}; byte[] iv = {00000000000000000000000000000000}; byte[] plaintext = "6a84867cd77e12ad07ea1be895c53fa3".getBytes(); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(sessionKey, "AES"), new IvParameterSpec(iv)); byte[] ciphertext = cipher.doFinal(plaintext); cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec

浅谈AES加解密

由 感情迁移 提交于 2020-01-08 21:01:56
浅谈AES加解密 一、描述 AES高级加解密工具（可逆） 二、代码实现 1、AES加密、解密 package com . lanshen . utils . lsjavaUtils ; import sun . misc . BASE64Decoder ; import sun . misc . BASE64Encoder ; import javax . crypto . Cipher ; import javax . crypto . spec . IvParameterSpec ; import javax . crypto . spec . SecretKeySpec ; /** * Created by Lanshen on 2019/11/29. * AES高级加解密工具（可逆） */ public class lsaesUtils { private static final String AES = "AES" ; private static final String CHAR_SET_NAME1 = "UTF-8" ; private static final String CHAR_SET_NAME2 = "ASCII" ; private static final String CIPHER_KEY = "AES/CBC/PKCS5Padding" ; /

node.js aes decipher.final error

由 微笑、不失礼 提交于 2020-01-06 13:01:58
问题 Im using the following sample. The problem I have is when decrypting: var decrypted = decipher.update(edata, 'binary') + decipher.final('binary'); gets an error digital envelope routines:EVD_DecryptFinal_ex:wrong final block length. Ive searched but cant seem to figure it out. Im only referring to the node.js encrypt/decrypt code: function AES() { } AES.prototype.encrypt256 = function(input, password, callback) { var m = crypto.createHash('md5'); m.update(password) var key = m.digest('hex');

node.js aes decipher.final error

由 人盡茶涼 提交于 2020-01-06 12:57:33
问题 Im using the following sample. The problem I have is when decrypting: var decrypted = decipher.update(edata, 'binary') + decipher.final('binary'); gets an error digital envelope routines:EVD_DecryptFinal_ex:wrong final block length. Ive searched but cant seem to figure it out. Im only referring to the node.js encrypt/decrypt code: function AES() { } AES.prototype.encrypt256 = function(input, password, callback) { var m = crypto.createHash('md5'); m.update(password) var key = m.digest('hex');
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