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Drafts for Public Comment
All Public Drafts
Special Publications (SPs)
Security & Privacy
Laws & Regulations
Activities & Products
Computer Security Division
Applied Cybersecurity Division
The length of K in bits
NIST SP 800-133 Rev. 2
Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.
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See NISTIR 7298 Rev. 3 for additional details.