# Key Pair

Key Pair definition in **Computer Security** terms:

Acronym(s): *None*

Definition(s): A public key and its corresponding private key.

**Source(s):** FIPS 186-4

NIST SP 800-89

A public key and its corresponding private key; a key pair is used with a public key algorithm.

**Source(s):** CNSSI 4009-2015 (NIST SP 800-57 Part 1 Rev. 3)

NIST SP 800-21 Second edition (NIST SP 800-57)

NIST SP 800-57 Part 2

A private key and its corresponding public key; a key pair is used with an asymmetric-key (public-key) algorithm.

**Source(s):** NIST SP 800-133 (Superceded by Rev. 1)

Two mathematically related keys having the properties that (1) one key can be used to encrypt a message that can only be decrypted using the other key, and (ii) even knowing one key, it is computationally infeasible to discover the other key.

**Source(s):** NIST SP 800-32

A public key and its corresponding private key; a key pair is used with a public-key algorithm.

**Source(s):** NIST SP 800-57 Part 1 Rev. 3

NIST SP 800-57 Part 3 Rev. 1

NIST SP 800-56B Rev. 1

Synonym(s): *None*

reference: CSRC Glossary

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