# Public Key Cryptography

Public Key Cryptography definition in **Computer Security** terms:

Acronym(s): PKC

Definition(s): An encryption method that uses a two-part key: a public key and a private key. Users generally distribute their public key, but keep their private key to themselves.

**Source(s):** NIST SP 800-146

Cryptography that uses separate keys for encryption and decryption; also known as asymmetric cryptography.

**Source(s):** NIST SP 800-77

Encryption system that uses a public-private key pair for encryption and/or digital signature.

**Source(s):** CNSSI 4009-2015

Synonym(s): Asymmetric Cryptography

See public key cryptography (PKC).

**Source(s):** CNSSI 4009-2015 Cryptography that uses separate keys for encryption and decryption; also known as public key cryptography.

**Source(s):** NIST SP 800-77

reference: CSRC Glossary

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