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The length (in bits) of the bit string x. For example, |01100100| = 8.
NIST SP 800-106
The absolute value of x.
NIST SP 800-56B Rev. 2
The length of a bit string X in bits.
NIST SP 800-108r1
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.
Comments about the glossary's presentation and functionality should be sent to firstname.lastname@example.org.
See NISTIR 7298 Rev. 3 for additional details.