How to use any String as Secret Key for Encryption and Decryption in java, String as Secret Key at Cryptography in java

This java source code shows how to use any kind of string as secret key for encryption and decryption.

Step 1: Input any string value as secret key.

Step 2: Encrypt a message using this secret key. It provides ciphertext.

Step 3: Decrypt a ciphertext using this secret key. It provoides original message.

AES Encryption and Decryption Java Code

AES algorithm is a well-known cryptography algorithm. It is a symmetric key cryptography algorithm. Symmetric means same key used for both encryption and decryption. This algorithm encrypts a text to ciphertext and decrypt ciphertext to original text based on AES key.