Encryption works by converting plaintext (readable data) into ciphertext (encoded data) using an algorithm and a key. Here’s a simplified overview of the process:
Plaintext: This is the original data that needs to be protected, such as a password or message.
Encryption Algorithm: This is a mathematical procedure that transforms the plaintext into ciphertext. Common algorithms include AES (Advanced Encryption Standard), RSA (Rivest-Shamir-Adleman), and others.
Key: This is a piece of information used by the encryption algorithm to perform the transformation. The key must be kept secret; if someone has access to the key, they can decrypt the data.
Ciphertext: This is the result of the encryption process. It appears as a random string of characters and is unreadable without the appropriate key.
Decryption: This is the reverse process, where the ciphertext is converted back into plaintext using the same algorithm and the correct key.
In summary, encryption secures data by transforming it into an unreadable format, which can only be reverted to its original form by someone who possesses the correct key.
