GAITHERSBURG, Md. — The U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) has chosen the first group of encryption tools that are designed to withstand the assault of a future quantum computer, which could potentially crack the security used to protect privacy in the digital systems we rely on every day — such as online banking and email software. The four selected encryption algorithms will become part of NIST’s post-quantum cryptographic standard, expected to be finalized in about two years.
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The announcement follows a six-year effort managed by NIST, which in 2016 called upon the world’s cryptographers to devise and then vet encryption methods that could resist an attack from a future quantum computer that is more powerful than the comparatively limited machines available today. The selection constitutes the beginning of the finale of the agency’s post-quantum cryptography standardization project.

Although NIST will not publish the new post-quantum cryptographic standard for use by commercial products until 2024, CISA and NIST strongly recommend organizations start preparing for the transition now by following the Post-Quantum Cryptography Roadmap, which includes: ... [see original article for a long list of useful hints about how to transition to the new encryption algorithms]

For additional guidance and background, CISA and NIST strongly encourage users and administrators to review:

• NIST press release, NIST Announces First Four Quantum-Resistant Cryptographic Algorithms.
  
• The NIST and Post-Quantum Cryptography, Post-Quantum Cryptography Standardization, and Migration to Post-Quantum Cryptography websites.