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2014/10/16 ¤W¤È 08:11:47
android Programming Glossary: cryptoEncryption error on Android 4.2 http://stackoverflow.com/questions/13383006/encryption-error-on-android-4-2 for SecureRandom to use OpenSSL instead of the previous Crypto provider. The following code will produce two different outputs.. .getName On pre 4.2 devices rand.getProvider Crypto On 4.2 devices rand.getProvider AndroidOpenSSL Fortunately it's.. behavior SecureRandom sr SecureRandom.getInstance SHA1PRNG Crypto To be sure it's dangerous to be calling SecureRandom.setSeed..
Android 4.2 broke my AES encrypt/decrypt code http://stackoverflow.com/questions/13389870/android-4-2-broke-my-aes-encrypt-decrypt-code JELLY_BEAN_4_2 sr SecureRandom.getInstance SHA1PRNG Crypto else sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed try..
Android 4.2 broke my encrypt/decrypt code and the provided solutions don't work http://stackoverflow.com/questions/13433529/android-4-2-broke-my-encrypt-decrypt-code-and-the-provided-solutions-dont-work JELLY_BEAN_4_2 sr SecureRandom.getInstance SHA1PRNG Crypto else sr SecureRandom.getInstance SHA1PRNG doesn't work for me..
Encryption compatable between Android and C# http://stackoverflow.com/questions/2090765/encryption-compatable-between-android-and-c-sharp javax.crypto.spec. import android.util.Log public class Crypto public static final String TAG smsfwd private static Cipher.. private static String MESSAGEDIGEST_ALGORITHM MD5 public Crypto String passphrase byte passwordKey encodeDigest passphrase try.. class using System using System.Text using System.Security.Cryptography namespace smsfwdClient public class Crypto private ICryptoTransform..
http://stackoverflow.com/questions/3127267/asymmetric-crypto-on-android Crypto on Android I would like to ask if i can use Asymmetric Crypto.. on Android I would like to ask if i can use Asymmetric Crypto like RSA or ECC on android mobile phones how and what are the.. Because it is Java you can use the Bouncy Castle Cryptographic Library http www.bouncycastle.org java.html You can use..
BouncyCastle AES error when upgrading to 1.45 http://stackoverflow.com/questions/4405334/bouncycastle-aes-error-when-upgrading-to-1-45 AES BC SecureRandom sr SecureRandom.getInstance SHA1PRNG Crypto sr.setSeed seed kgen.init 128 sr SecretKey skey kgen.generateKey..
Encrypt with Node.js Crypto module and decrypt with Java (in Android app) http://stackoverflow.com/questions/7787773/encrypt-with-node-js-crypto-module-and-decrypt-with-java-in-android-app with Node.js Crypto module and decrypt with Java in Android app Looking for a way..
http://stackoverflow.com/questions/11418336/java-simplecrypto-class-for-encryption-decryption-producing-different-results import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.KeyGenerator import javax.crypto.SecretKey.. import javax.crypto.Cipher import javax.crypto.KeyGenerator import javax.crypto.SecretKey import javax.crypto.spec.SecretKeySpec.. import javax.crypto.KeyGenerator import javax.crypto.SecretKey import javax.crypto.spec.SecretKeySpec Usage pre String..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue http android developers.blogspot.in 2013 02 using cryptography to store credentials.html http developer.android.com reference.. http developer.android.com reference javax crypto SecretKeyFactory.html Check the above links. Use the below for.. e e.printStackTrace DescEncrypter.java import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory..
http://stackoverflow.com/questions/3150830/android-encryption I use AES DES RSA etc... . I am aware that Java has a crypto package but I am not familiar with it at all. Can someone post.. to do an encrypt decrypt function java android security cryptography share improve this question The java AES library has.. import javax.crypto.Cipher import javax.crypto.spec.SecretKeySpec public class MainClass..
Process the value of preference before save in Android? http://stackoverflow.com/questions/5858790/process-the-value-of-preference-before-save-in-android Preference preference Object newValue String crypto SimpleCrypto.encrypt MYSECRETKEY newValue.toString encrypt .. editor settings.edit editor.putString pass crypto editor.commit P.S Like this when I change password it stores..
Encrypt with Node.js Crypto module and decrypt with Java (in Android app) http://stackoverflow.com/questions/7787773/encrypt-with-node-js-crypto-module-and-decrypt-with-java-in-android-app Any help appreciated. here's some code Node.js var crypto require 'crypto' var cipher crypto.createCipher 'aes 128 cbc'.. appreciated. here's some code Node.js var crypto require 'crypto' var cipher crypto.createCipher 'aes 128 cbc' 'somepass' var.. some code Node.js var crypto require 'crypto' var cipher crypto.createCipher 'aes 128 cbc' 'somepass' var text uncle had a little..
Encrypt and decrypt data for Android app-client http://stackoverflow.com/questions/8397213/encrypt-and-decrypt-data-for-android-app-client encryption data share improve this question javax.crypto This package provides the classes and interfaces for cryptographic.. This package provides the classes and interfaces for cryptographic applications implementing algorithms for encryption decryption.. com.xxx import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.KeyGenerator import javax.crypto.SecretKey..
What are best practices for using AES encryption in Android? http://stackoverflow.com/questions/8622367/what-are-best-practices-for-using-aes-encryption-in-android import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory.. import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory import javax.crypto.spec.IvParameterSpec.. import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory import javax.crypto.spec.IvParameterSpec import..
Encryption error on Android 4.2 http://stackoverflow.com/questions/13383006/encryption-error-on-android-4-2 Cipher.RSA to use OpenSSL They changed the default provider for SecureRandom to use OpenSSL instead of the previous Crypto provider. The following code will produce two different outputs on pre Android 4.2 and Android 4.2 SecureRandom rand SecureRandom.getInstance.. SHA1PRNG Log.i TAG rand.getProvider rand.getProvider .getName On pre 4.2 devices rand.getProvider Crypto On 4.2 devices rand.getProvider AndroidOpenSSL Fortunately it's easy to revert to the old behavior SecureRandom sr SecureRandom.getInstance.. AndroidOpenSSL Fortunately it's easy to revert to the old behavior SecureRandom sr SecureRandom.getInstance SHA1PRNG Crypto To be sure it's dangerous to be calling SecureRandom.setSeed at all in light of the Javadocs which state Seeding SecureRandom..
Android 4.2 broke my AES encrypt/decrypt code http://stackoverflow.com/questions/13389870/android-4-2-broke-my-aes-encrypt-decrypt-code AES SC SecureRandom sr null if android.os.Build.VERSION.SDK_INT JELLY_BEAN_4_2 sr SecureRandom.getInstance SHA1PRNG Crypto else sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed try kgen.init 256 sr kgen.init 128 sr catch Exception e Log.w..
Android 4.2 broke my encrypt/decrypt code and the provided solutions don't work http://stackoverflow.com/questions/13433529/android-4-2-broke-my-encrypt-decrypt-code-and-the-provided-solutions-dont-work solution SecureRandom sr null if android.os.Build.VERSION.SDK_INT JELLY_BEAN_4_2 sr SecureRandom.getInstance SHA1PRNG Crypto else sr SecureRandom.getInstance SHA1PRNG doesn't work for me because when decoding data encrypted in Android 4.2 in Android..
Encryption compatable between Android and C# http://stackoverflow.com/questions/2090765/encryption-compatable-between-android-and-c-sharp import java.security. import javax.crypto. import javax.crypto.spec. import android.util.Log public class Crypto public static final String TAG smsfwd private static Cipher aesCipher private static SecretKey secretKey private static.. 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 private static String MESSAGEDIGEST_ALGORITHM MD5 public Crypto String passphrase byte passwordKey encodeDigest passphrase try aesCipher Cipher.getInstance CIPHER_TRANSFORMATION catch.. current java base64 for the base64 encoding. Here's my C# class using System using System.Text using System.Security.Cryptography namespace smsfwdClient public class Crypto private ICryptoTransform rijndaelDecryptor Replace me with a 16 byte key..
http://stackoverflow.com/questions/3127267/asymmetric-crypto-on-android Crypto on Android I would like to ask if i can use Asymmetric Crypto like RSA or ECC on android mobile phones how and what are.. Crypto on Android I would like to ask if i can use Asymmetric Crypto like RSA or ECC on android mobile phones how and what are the best libraries i should use. android cryptography asymmetric.. use. android cryptography asymmetric share improve this question Because it is Java you can use the Bouncy Castle Cryptographic Library http www.bouncycastle.org java.html You can use RSA or ElGamal for Asymmetric Cryptography http www.bouncycastle.org..
BouncyCastle AES error when upgrading to 1.45 http://stackoverflow.com/questions/4405334/bouncycastle-aes-error-when-upgrading-to-1-45 from a passphrase KeyGenerator kgen KeyGenerator.getInstance AES BC SecureRandom sr SecureRandom.getInstance SHA1PRNG Crypto sr.setSeed seed kgen.init 128 sr SecretKey skey kgen.generateKey byte raw skey.getEncoded What I have found is that this..
Encrypt with Node.js Crypto module and decrypt with Java (in Android app) http://stackoverflow.com/questions/7787773/encrypt-with-node-js-crypto-module-and-decrypt-with-java-in-android-app with Node.js Crypto module and decrypt with Java in Android app Looking for a way to encrypt data mainly strings in node and decrypt in an..
http://stackoverflow.com/questions/11418336/java-simplecrypto-class-for-encryption-decryption-producing-different-results be greatly appreciated. Here is the source code for SimpleCrypto.java import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.KeyGenerator import javax.crypto.SecretKey import javax.crypto.spec.SecretKeySpec Usage pre String.. is the source code for SimpleCrypto.java import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.KeyGenerator import javax.crypto.SecretKey import javax.crypto.spec.SecretKeySpec Usage pre String crypto SimpleCrypto.encrypt.. import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.KeyGenerator import javax.crypto.SecretKey import javax.crypto.spec.SecretKeySpec Usage pre String crypto SimpleCrypto.encrypt masterpassword cleartext .....
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue Thanks in advance. android aes share improve this question http android developers.blogspot.in 2013 02 using cryptography to store credentials.html http developer.android.com reference javax crypto SecretKeyFactory.html Check the above.. developers.blogspot.in 2013 02 using cryptography to store credentials.html http developer.android.com reference javax crypto SecretKeyFactory.html Check the above links. Use the below for reference.Modify the below according to your needs. Usage.. decryp ec.decrypt hi cipherText catch UnsupportedEncodingException e e.printStackTrace DescEncrypter.java import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory import javax.crypto.spec.IvParameterSpec import..
http://stackoverflow.com/questions/3150830/android-encryption for one aspect of it. I am really indifferent to which algorithm I use AES DES RSA etc... . I am aware that Java has a crypto package but I am not familiar with it at all. Can someone post an example on how to do an encrypt decrypt function java.. familiar with it at all. Can someone post an example on how to do an encrypt decrypt function java android security cryptography share improve this question The java AES library has a flaw in it that allows under the right circumstances a.. stolen from http www.java2s.com Code Java Security EncryptionanddecryptionwithAESECBPKCS7Padding.htm import javax.crypto.Cipher import javax.crypto.spec.SecretKeySpec public class MainClass public static void main String args throws Exception..
Process the value of preference before save in Android? http://stackoverflow.com/questions/5858790/process-the-value-of-preference-before-save-in-android OnPreferenceChangeListener @Override public boolean onPreferenceChange Preference preference Object newValue String crypto SimpleCrypto.encrypt MYSECRETKEY newValue.toString encrypt Here is where I'm wrong I guess. SharedPreferences settings.. getSharedPreferences preferences MODE_PRIVATE SharedPreferences.Editor editor settings.edit editor.putString pass crypto editor.commit P.S Like this when I change password it stores password without encryption. android encryption passwords..
Encrypt with Node.js Crypto module and decrypt with Java (in Android app) http://stackoverflow.com/questions/7787773/encrypt-with-node-js-crypto-module-and-decrypt-with-java-in-android-app library in each language has different names for same things... Any help appreciated. here's some code Node.js var crypto require 'crypto' var cipher crypto.createCipher 'aes 128 cbc' 'somepass' var text uncle had a little farm var crypted cipher.update.. language has different names for same things... Any help appreciated. here's some code Node.js var crypto require 'crypto' var cipher crypto.createCipher 'aes 128 cbc' 'somepass' var text uncle had a little farm var crypted cipher.update text.. names for same things... Any help appreciated. here's some code Node.js var crypto require 'crypto' var cipher crypto.createCipher 'aes 128 cbc' 'somepass' var text uncle had a little farm var crypted cipher.update text 'utf8' 'hex' crypted..
Encrypt and decrypt data for Android app-client http://stackoverflow.com/questions/8397213/encrypt-and-decrypt-data-for-android-app-client Is there a simple way to encrypt and decrypt the string android encryption data share improve this question javax.crypto This package provides the classes and interfaces for cryptographic applications implementing algorithms for encryption decryption.. encryption data share improve this question javax.crypto This package provides the classes and interfaces for cryptographic applications implementing algorithms for encryption decryption or key agreement. Stream ciphers are supported as.. with the same SEED the stored values can be decrypted. package com.xxx import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.KeyGenerator import javax.crypto.SecretKey import javax.crypto.spec.SecretKeySpec Usage pre String..
What are best practices for using AES encryption in Android? http://stackoverflow.com/questions/8622367/what-are-best-practices-for-using-aes-encryption-in-android import java.security.NoSuchProviderException import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory import javax.crypto.spec.IvParameterSpec import.. import java.security.NoSuchProviderException import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory import javax.crypto.spec.IvParameterSpec import javax.crypto.spec.PBEKeySpec.. import java.security.SecureRandom import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory import javax.crypto.spec.IvParameterSpec import javax.crypto.spec.PBEKeySpec import javax.crypto.spec.SecretKeySpec..
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