Explain how digital signatures are used in the context of network security. What are the uses of digital signatures?

Digital signatures play a crucial role in ensuring the integrity, authenticity, and non-repudiation of data in network security. In essence, digital signatures are electronic counterparts of handwritten signatures, but with added security and efficiency.

Usage in Network Security:

1. Authentication: Digital signatures authenticate the sender of a message or data packet. When a sender signs a message with their private key, the recipient can verify the signature using the _____ ___ ______ ____ ____ ____ _________ ____ _____ _______ _______.
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