{wiki=Public-key_cryptography}

Public-key cryptography, also known as asymmetric cryptography, is a cryptographic system that uses a pair of keys for secure communication: a public key and a private key. These keys are mathematically related but serve different purposes. 1. **Public Key**: This key is shared openly and can be distributed to anyone. It is used to encrypt messages or verify digital signatures. 2. **Private Key**: This key is kept secret by the owner.


Public-key cryptography

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= Public key
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= Private key
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It allows you to do two things:
* <encryption>
* <digital signature>


 Public-key cryptography

ID: public-key-cryptography