CNSS Issues Memo on Shift to Quantum-Resistant Cryptography

John Young jya at
Mon Aug 17 09:53:17 PDT 2015

CNSS Advisory Memo on Use of Public Standards for Secure Sharing of 
Information Among NatSec Systems 08/11/15


This Advisory expands on the guidance contained in CNSS Policy No. 
15, National Information Assurance Policy on the Use of Public 
Standards for the Secure Sharing of Information Among National 
Security Systems (Reference a). Based on analysis of the effect of 
quantum computing on Information Assurance (IA) and IA-enabled 
Information Technology (IT) products, the policy's set of authorized 
algorithms is expanded to provide vendors and IT users more near-term 
flexibility in meeting their IA interoperability requirements. The 
purpose behind this additional flexibility is to avoid vendors and 
customers making two major transitions in a relatively short 
timeframe, as we anticipate a need to shift to quantum-resistant 
cryptography in the near future. 
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