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2014/10/16 ¤W¤È 08:17:26
android Programming Glossary: kgenhttp://stackoverflow.com/questions/11418336/java-simplecrypto-class-for-encryption-decryption-producing-different-results byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance.. sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey.. sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private static..
Encryption error on Android 4.2 http://stackoverflow.com/questions/13383006/encryption-error-on-android-4-2 getRawKey throws NoSuchAlgorithmException KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance.. SecureRandom.getInstance SHA1PRNG sr.setSeed KEY.getBytes kgen.init 128 sr SecretKey skey kgen.generateKey return skey.getEncoded.. sr.setSeed KEY.getBytes kgen.init 128 sr SecretKey skey kgen.generateKey return skey.getEncoded Process the given input..
Android 4.2 broke my AES encrypt/decrypt code http://stackoverflow.com/questions/13389870/android-4-2-broke-my-aes-encrypt-decrypt-code byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance.. sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed try kgen.init 256 sr catch Exception e Log.w LOG This device doesn't.. This device doesn't suppor 256bits trying 192bits. try kgen.init 192 sr catch Exception e1 Log.w LOG This device doesn't..
BouncyCastle AES error when upgrading to 1.45 http://stackoverflow.com/questions/4405334/bouncycastle-aes-error-when-upgrading-to-1-45 to generate raw keys from a passphrase KeyGenerator kgen KeyGenerator.getInstance AES BC SecureRandom sr SecureRandom.getInstance.. SecureRandom.getInstance SHA1PRNG Crypto sr.setSeed seed kgen.init 128 sr SecretKey skey kgen.generateKey byte raw skey.getEncoded.. Crypto sr.setSeed seed kgen.init 128 sr SecretKey skey kgen.generateKey byte raw skey.getEncoded What I have found is that..
Securing media files in the mobile http://stackoverflow.com/questions/6676574/securing-media-files-in-the-mobile byte seed throws EncrypterException try final KeyGenerator kgen KeyGenerator.getInstance AES final SecureRandom sr SecureRandom.getInstance.. sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available final SecretKey.. 192 and 256 bits may not be available final SecretKey skey kgen.generateKey return skey.getEncoded catch Exception e throw new..
android encryption/decryption with AES http://stackoverflow.com/questions/6788018/android-encryption-decryption-with-aes byte keyStart this is a key .getBytes KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance.. sr SecureRandom.getInstance SHA1PRNG sr.setSeed keyStart kgen.init 128 sr 192 and 256 bits may not be available SecretKey.. sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte key skey.getEncoded encrypt byte encryptedData..
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 byte getRawKey String seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance.. SHA1PRNG byte seedBytes seed.getBytes sr.setSeed seedBytes kgen.init 128 sr 192 and 256 bits may not be available SecretKey.. sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw while the encrypted..
Encrypt and decrypt data for Android app-client http://stackoverflow.com/questions/8397213/encrypt-and-decrypt-data-for-android-app-client byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance.. sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey.. sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private static..
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 byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance.. sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey.. sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private static..
http://stackoverflow.com/questions/9496447/encryption-of-video-files AES Cipher decipher Cipher.getInstance AES KeyGenerator kgen KeyGenerator.getInstance AES byte key 0x00 0x32 0x22 0x11 0x00.. 0x23 0x00 0x00 0x00 0x00 0x00 0x00 0x00 SecretKey skey kgen.generateKey Lgo encipher.init Cipher.ENCRYPT_MODE skey CipherInputStream..
http://stackoverflow.com/questions/11418336/java-simplecrypto-class-for-encryption-decryption-producing-different-results decrypt rawKey enc return new String result private static byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and.. KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private.. SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private static byte encrypt byte raw byte clear throws Exception SecretKeySpec..
Encryption error on Android 4.2 http://stackoverflow.com/questions/13383006/encryption-error-on-android-4-2 raw key @throws NoSuchAlgorithmException private static byte getRawKey throws NoSuchAlgorithmException KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed KEY.getBytes kgen.init 128 sr.. kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed KEY.getBytes kgen.init 128 sr SecretKey skey kgen.generateKey return skey.getEncoded Process the given input with the provided mode. br .. AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed KEY.getBytes kgen.init 128 sr SecretKey skey kgen.generateKey return skey.getEncoded Process the given input with the provided mode. br @param the cipher mode @param the..
Android 4.2 broke my AES encrypt/decrypt code http://stackoverflow.com/questions/13389870/android-4-2-broke-my-aes-encrypt-decrypt-code result decrypt rawKey encrypted return result private static byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed try kgen.init 256 sr catch.. KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed try kgen.init 256 sr catch Exception e Log.w LOG This device doesn't suppor 256bits trying 192bits. try kgen.init 192 sr catch.. seed try kgen.init 256 sr catch Exception e Log.w LOG This device doesn't suppor 256bits trying 192bits. try kgen.init 192 sr catch Exception e1 Log.w LOG This device doesn't suppor 192bits trying 128bits. kgen.init 128 sr SecretKey..
BouncyCastle AES error when upgrading to 1.45 http://stackoverflow.com/questions/4405334/bouncycastle-aes-error-when-upgrading-to-1-45 1090 EDIT More about this issue. I am using the following to generate raw keys from a passphrase KeyGenerator kgen KeyGenerator.getInstance AES BC SecureRandom sr SecureRandom.getInstance SHA1PRNG Crypto sr.setSeed seed kgen.init 128 sr.. 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 results in two different.. 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 results in two different values for BC 1.34 vs 1.45...
Securing media files in the mobile http://stackoverflow.com/questions/6676574/securing-media-files-in-the-mobile new EncrypterException e private static byte getRawKey byte seed throws EncrypterException try final KeyGenerator kgen KeyGenerator.getInstance AES final SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192.. KeyGenerator kgen KeyGenerator.getInstance AES final SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available final SecretKey skey kgen.generateKey return skey.getEncoded catch Exception.. SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available final SecretKey skey kgen.generateKey return skey.getEncoded catch Exception e throw new EncrypterException e private static byte encrypt byte raw..
android encryption/decryption with AES http://stackoverflow.com/questions/6788018/android-encryption-decryption-with-aes 100 baos bm is the bitmap object byte b baos.toByteArray byte keyStart this is a key .getBytes KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed keyStart kgen.init 128 sr 192.. KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed keyStart kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte key skey.getEncoded encrypt byte.. SHA1PRNG sr.setSeed keyStart kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte key skey.getEncoded encrypt byte encryptedData encrypt key b decrypt byte decryptedData decrypt key encryptedData..
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 decrypted the raw key is created like this private static byte getRawKey String seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG byte seedBytes seed.getBytes sr.setSeed seedBytes.. AES SecureRandom sr SecureRandom.getInstance SHA1PRNG byte seedBytes seed.getBytes sr.setSeed seedBytes kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw while.. seedBytes seed.getBytes sr.setSeed seedBytes kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw while the encrypted hex string is converted to bytes like this public static..
Encrypt and decrypt data for Android app-client http://stackoverflow.com/questions/8397213/encrypt-and-decrypt-data-for-android-app-client decrypt rawKey enc return new String result private static byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and.. KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private.. SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private static byte encrypt byte raw byte clear throws Exception SecretKeySpec..
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 decrypt rawKey enc return new String result private static byte getRawKey byte seed throws Exception KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and.. KeyGenerator kgen KeyGenerator.getInstance AES SecureRandom sr SecureRandom.getInstance SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private.. SHA1PRNG sr.setSeed seed kgen.init 128 sr 192 and 256 bits may not be available SecretKey skey kgen.generateKey byte raw skey.getEncoded return raw private static byte encrypt byte raw byte clear throws Exception SecretKeySpec..
http://stackoverflow.com/questions/9496447/encryption-of-video-files FileOutputStream decfile Cipher encipher Cipher.getInstance AES Cipher decipher Cipher.getInstance AES KeyGenerator kgen KeyGenerator.getInstance AES byte key 0x00 0x32 0x22 0x11 0x00 0x00 0x00 0x00 0x00 0x23 0x00 0x00 0x00 0x00 0x00 0x00 0x00.. AES byte key 0x00 0x32 0x22 0x11 0x00 0x00 0x00 0x00 0x00 0x23 0x00 0x00 0x00 0x00 0x00 0x00 0x00 SecretKey skey kgen.generateKey Lgo encipher.init Cipher.ENCRYPT_MODE skey CipherInputStream cis new CipherInputStream fis encipher decipher.init..
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