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NSA removed EC-256 and SHA-256 from CNSA recently--should we be alarmed by this? No. There is one overwhelming reason why, as stated in the document: The cryptographic systems that NSA produces, certifies, and supports often have very long lifecycles. NSA has to produce requirements today for systems that will be used for many decades in the future, and ...


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In the initial call for submissions in section 4.A.6 Additional Security Properties, they do state: Another case where security and performance interact is resistance to side-channel attacks. Schemes that can be made resistant to side-channel attack at minimal cost are more desirable than those whose performance is severely hampered by any attempt to resist ...


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