<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:  How does Cryptography secure communication? Context: Cryptography enhances security in communication by transforming the message into an unreadable format using algorithms and keys, ensuring only authorized parties can access the information. Answer: [/INST]Cryptography secures communication by transforming the original message into an unreadable format using algorithms and keys that only authorized parties possess, ensuring confidentiality, integrity, authenticity, and non-repudiation.</s>