Final answer:
A salt is a bit of random data that is integrated into the encryption key to create a combined key, which is then used to encrypt the data.
Step-by-step explanation:
A bit of random data that is integrated into the encryption key is called a salt. The salt is combined with the encryption key to create a combined key which is then used to encrypt the data. The purpose of using a salt is to add an extra layer of randomness and complexity to the encryption process, making it more secure.