1. Random Encryption Key Generator

Oct 18, 2016 The encryption keys generated in modern cryptographic algorithms are generated depending upon the algorithm used. Primarily there are two types of encryption schemes: Symmetric and Asymmetric(Public Key encryption). You will have to generate a private and a public encryption key in order to securely send the order information to FastSpring. There are two ways on how to generate these keys. The easy way or the long way. The easy way is only possible, if your server is supporting openssl functionalities needed for encryption.

The Java KeyGenerator class (javax.crypto.KeyGenerator) is used to generate symmetric encryption keys. A symmetric encryption key is a key that is used for both encryption and decryption of data, by a symmetric encryption algorithm. In this Java KeyGenerator tutorial I will show you how to generate symmetric encryption keys.

Creating a KeyGenerator Instance

Before you can use the Java KeyGenerator class you must create a KeyGenerator instance. You create a KeyGenerator instance by calling the static method getInstance() passing as parameter the name of the encryption algorithm to create a key for. Here is an example of creating a Java KeyGenerator instance:

This example creates a KeyGenerator instance which can generate keys for the AES encryption algorithm.

Initializing the KeyGenerator

Used To Generate An Encryption KeyKey

After creating the KeyGenerator instance you must initialize it. Initializing a KeyGenerator instance is done by calling its init() method. Here is an example of initializing a KeyGenerator instance:

The KeyGeneratorinit() method takes two parameters: The bit size of the keys to generate, and a SecureRandom that is used during key generation.

Generating a Key

Once the Java KeyGenerator instance is initialized you can use it to generate keys. Generating a key is done by calling the KeyGeneratorgenerateKey() method. Here is an example of generating a symmetric key:

Random Encryption Key Generator

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