Security Analysis of DRBG Using HMAC in NIST SP 800-90

Authors:
Shoichi Hirose
Affiliations:
Graduate School of Engineering, University of Fukui,
Venue:
Information Security Applications
Year:
2009

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Abstract

HMAC_DRBG is a deterministic random bit generator using HMAC specified in NIST SP 800-90. The document claims that HMAC_DRBG is a pseudorandom bit generator if HMAC is a pseudorandom function. However, no proof is given in the document. This article provides a security analysis of HMAC_DRBG and confirms the claim.