public-key

noun

pub·​lic-key ˈpə-blik-ˈkē How to pronounce public-key (audio)
often attributive
: a cryptographic element that is the publicly shared half of an encryption code and that can be used only to encode messages

Examples of public-key in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Map all dependencies on public-key cryptography across digital certificates, identity providers, API authentication mechanisms and secure communications. Dino Dimarino, Forbes.com, 29 Apr. 2025 These mathematical solutions are designed to be used to replace today’s public-key encryption. John Prisco, Forbes, 17 Jan. 2025 Begin Testing: Set up lab environments to test PQC public-key encryption and prepare signature validation software for the new algorithms. Ted Shorter, Forbes, 18 Dec. 2024 There are two primary types of encryption: symmetric, which uses the same key for encryption and decryption, and asymmetric (public-key encryption), which utilizes separate public and private keys. Mukul Garg, Forbes, 25 Nov. 2024 Password managers greatly reduce the risk of data breaches by providing multiple layers of encryption, including public-key cryptography, directly on your device. Darren Guccione, Forbes, 24 Oct. 2024 Identify all areas where public-key cryptography is used, including data storage, communication protocols, software libraries and digital certificates. Ali El Kaafarani, Forbes, 1 Oct. 2024 The technological foundation of Bitcoin—public-key cryptography, computer networking, and economic incentives—is based on science, not politics. Korok Ray, Forbes, 18 Sep. 2024 But a quantum computer would render the standard types of public-key cryptography useless. Kelsey Houston-Edwards, Scientific American, 1 Feb. 2024

Word History

First Known Use

1976, in the meaning defined above

Time Traveler
The first known use of public-key was in 1976

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Cite this Entry

“Public-key.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/public-key. Accessed 11 May. 2025.

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