25 нояб. 2013 г. · To create a secure key, use a KeyGenerator that is based on a properly seeded cryptographic random number generator.

14 июл. 2017 г. · You should give PBEKeySpec what it needs to generate enough bits for an AES key. You need the same salt on both sides, so you could do:

20 апр. 2012 г. · The AES key can be any 128 bits. It should be be practically unguessable, whatever the method of creating it. For Example:

4 окт. 2016 г. · For generating AES key of 256 bits, i wrote following code: KeyGenerator keyGen; try { keyGen = KeyGenerator.getInstance("AES"); keyGen.init(256); SecretKey ...

8 авг. 2013 г. · It is. By generating an AES secret key value, and then making sure that the ascii value of each character is within the bounds of 0-8 (48 - 57) or az (97-122).

28 окт. 2019 г. · The simplest and most common way to achieve both uniqueness and unpredictability is to use a secure Random Number (aka Bit) Generator such as Java's ...

5 дек. 2017 г. · AES is an advanced version of DES with bigger key size. So if you need more secure encryption, using AES should be your option.

14 авг. 2013 г. · I would use your suggested code, but with a slight simplification: KeyGenerator keyGen = KeyGenerator.getInstance("AES"); keyGen.init(256); ...

19 сент. 2011 г. · I have to generate keys just from a password (with no salt and no iterations), and I need them to work for AES-128, AES-192 and AES-256.

20 окт. 2019 г. · Let's do it step by step to keep things simple. You need two methods to achieve your goal. I'll start with encryption method.