human
Summarize the purpose of cryptography.
gpt
The purpose of cryptography is to protect data and communications against unauthorized access and alteration. Cryptographic algorithms are used to transform plain text into a secret code that can only be read by the intended recipient, usually via a cryptographic key. This makes it difficult for unauthorized parties to access and understand the data, making it a powerful tool for data security.
alpaca_gpt2_none_15per_7650