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RFC 4226, "HOTP: An HMAC-Based One-Time Password Algorithm", December 2005

Source of RFC: IETF - NON WORKING GROUP
Area Assignment: sec

Errata ID: 2406
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT

Reported By: Alfred Hoenes
Date Reported: 2006-01-18
Held for Document Update by: Tim Polk
Date Held: 2011-03-27

Appendix A.4.3 says:

   Proposition 2 ------------- Suppose m = 10^Digit < 2^31, and let
   (q,r) = IntDiv(2^31,m).  Let B be any adversary attacking HOTP-IDEAL
   using v verification oracle queries and a <= 2^c - s authenticator
   oracle queries.  Then [...]

It should say:

  Proposition 2
  -------------

  Suppose m = 10^Digit < 2^31, and let (q,r) = IntDiv(2^31,m).  Let B
  be any adversary attacking HOTP-IDEAL using v verification oracle
  queries and a <= 2^c - s authenticator oracle queries.  Then  [...]

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