<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What is the difference between symmetric and asymmetric cryptography? Context: Symmetric cryptography uses a single key, asymmetric cryptography uses two different keys. Answer: [/INST]Symmetric cryptography uses the same key for both encryption and decryption, while asymmetric cryptography uses two different keys - one for encryption and one for decryption.</s>