Revision as of 02:53, 15 January 2026

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A counter taking integer values in the interval [1, 2r-1] that is encoded as a bit string of length r; used as an input to each invocation of a PRF in the counter mode and (optionally) in the feedback and double-pipeline iteration modes.

Source: NIST SP 800-108r1 | Category:

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	{{CyberTerm\|definition=~~Input Block~~\|source=NIST SP 800-20}}		{{CyberTerm\|definition=A counter taking integer values in the interval [1, 2r-1] that is encoded as a bit string of length r; used as an input to each invocation of a PRF in the counter mode and (optionally) in the feedback and double-pipeline iteration modes.\|source=NIST SP 800-108r1}}