cryptosystem
noun
cryp·to·sys·tem
ˌkrip-tō-ˈsi-stəm 
: a method for encoding and decoding messages
Examples of cryptosystem in a Sentence
Recent Examples on the Web
Here’s one example why: Modern finance—our entire economic system, really—relies on public-key cryptosystems that are essentially unbreakable.
—
David M. Ewalt, Scientific American, 19 May 2026
Quantum computing, with algorithms like Shor’s and Grover’s, promises to render many of these cryptosystems obsolete in a single step of computing evolution.
—Morey Haber, Forbes.com, 24 Mar. 2026
Monday’s update bundles new post-quantum computing algorithms selected by the US Department of Commerce's National Institute of Standards and Technology (NIST) in its yearslong drive to find replacements for RSA and elliptic-curve cryptosystems.
—ArsTechnica, 20 May 2025
The fear is that, sometime down the road, a fault-tolerant quantum computer will be used to break existing cryptosystems.
—Kazuhiro Gomi, Forbes, 19 Apr. 2023
In one foul swoop, Shor’s work raised the prospect that any public key cryptosystem could be cracked by a quantum computer in future.
—Discover Magazine, 10 Jan. 2023
The secure McEliece cryptosystem is named after its inventor.
—IEEE Spectrum, 13 June 2019
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David M. Ewalt, Scientific American, 19 May 2026
Quantum computing, with algorithms like Shor’s and Grover’s, promises to render many of these cryptosystems obsolete in a single step of computing evolution.
—Morey Haber, Forbes.com, 24 Mar. 2026
Monday’s update bundles new post-quantum computing algorithms selected by the US Department of Commerce's National Institute of Standards and Technology (NIST) in its yearslong drive to find replacements for RSA and elliptic-curve cryptosystems.
—ArsTechnica, 20 May 2025
The fear is that, sometime down the road, a fault-tolerant quantum computer will be used to break existing cryptosystems.
—Kazuhiro Gomi, Forbes, 19 Apr. 2023
In one foul swoop, Shor’s work raised the prospect that any public key cryptosystem could be cracked by a quantum computer in future.
—Discover Magazine, 10 Jan. 2023
The secure McEliece cryptosystem is named after its inventor.
—IEEE Spectrum, 13 June 2019
Cite this Entry
“Cryptosystem.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cryptosystem. Accessed 31 May. 2026.
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