Cryptography is what makes online communication what it is today. Without the security and privacy it affords, we would never be able to:
At its most basic, cryptography is about encrypting and decrypting data. Encryption transforms a key and input, called the "plaintext", into an encrypted output, called the "ciphertext". Only the person with the key can then decrypt the ciphertext back into the plaintext.
| Key | Plaintext | Ciphertext |
|---|---|---|
| someSecretMasterKey | a secret message | Asdk345SAdsk2$# |