Public-key Encryption
Public-key encryption is a cryptographic system that uses two keys, a public key known to everyone and a private key known only to the recipient. The public key is used to encrypt messages, while the private key is used to decrypt them. This system allows for secure communication over an insecure channel without the need for a shared secret key. Public-key encryption is widely used in data security, including secure communication over the internet, digital signatures, and secure email.
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