A One-Pass Mode of Operation for Deterministic Message Authentication-- Security beyond the Birthday Barrier

  • Authors:
  • Kan Yasuda

  • Affiliations:
  • NTT Information Sharing Platform Laboratories, NTT Corporation, Tokyo, Japan 180-8585

  • Venue:
  • Fast Software Encryption
  • Year:
  • 2008

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Abstract

We present a novel mode of operation which iterates a compression function f:{0,1}n+ b茂戮驴{0,1}nmeeting a condition b茂戮驴 2n. Our construction can be viewed as a way of domain extension, applicable to a fixed-input-length PRF (pseudo-random function) $f_k:\{0,1\}^b\to\{0,1\}^n$ meeting the condition b茂戮驴 2n, which yields an arbitrary-input-length PRF $F_k:\{0,1\}^\ast\to\{0,1\}^n$. Our construction accomplishes both high security (beyond the birthday barrier) and high efficiency (one-pass), with engineering considerations of being stateless, deterministic and single-keyed.