ISO/IEC 9797-3:2011 PDF

Name: ISO/IEC 9797-3:2011 — Information technology — Security techniques — Message Authentication Codes (MACs) — Part 3: Mechanisms using a universal hash-function
SKU: ISO/IEC 9797-3:2011
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Information technology — Security techniques — Message Authentication Codes (MACs) — Part 3: Mechanisms using a universal hash-function

Название (английский):

ISO/IEC 9797-3:2011

Information technology — Security techniques — Message Authentication Codes (MACs) — Part 3: Mechanisms using a universal hash-function

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 25
Дата публикации:: 8 ноября 2011 г.
Издание:: ISO/IEC IS 9797 edition 1 version 1
ICS:: 35.030

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Описание (английский):

ISO/IEC 9797-3:2011 specifies the following Message Authentication Code (MAC) algorithms that use a secret key and a universal hash-function with an n-bit result to calculate an m-bit MAC based on the block ciphers specified in ISO/IEC 18033-3 and the stream ciphers specified in ISO/IEC 18033-4: UMAC; Badger; Poly1305-AES; GMAC.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/IEC 9797-3:2011 - "Information technology - Security techniques - Message Authentication Codes (MACs) - Part 3: Mechanisms using a universal hash-function" - specifies MAC algorithms that combine a secret key with a universal hash-function to produce an m‑bit authentication tag. The standard defines four mechanisms: UMAC, Badger, Poly1305‑AES, and GMAC, and ties their use to the block ciphers in ISO/IEC 18033‑3 and the stream ciphers in ISO/IEC 18033‑4.

Key topics and technical requirements

Algorithms covered: UMAC, Badger, Poly1305‑AES, GMAC - all MACs built on universal hashing.

Inputs and outputs: Each MAC requires a master key (K), a nonce (N), and a message (M) to produce an m‑bit MAC/tag.

Two-stage processing model:

Key preprocessing - derive a hash key (K_H) and an encryption key (K_E) from the master key.
Message preprocessing and hashing - encode the message into the hash-function input and compute the universal-hash result (n bits), then finalize to an m‑bit MAC.

Security dependencies: MAC strength depends on key secrecy and length, the n‑bit hash output, the MAC length (m), the chosen universal hash‑function, and the underlying cipher security.

Normative and informative material:

Normative references (e.g., ISO/IEC 9797‑1, ISO/IEC 18031, ISO/IEC 18033 series).
Annex A: Object Identifiers.
Annex B: Test vectors for implementation validation.
Annex C: Security information and guidance.

Notation and primitives: Standard defines precise bit/byte operations, padding (zeropad), truncation rules, arithmetic operations, and field multiplication (GF(2^128)) used by GMAC.

Practical applications and users

Use cases:

Message integrity and authentication in network protocols, secure messaging, and data storage.
High-performance authentication for large or streaming data (UMAC, GMAC).
Authenticated encryption constructions and secure transport layers.

Who should use it:

Cryptographic engineers, protocol designers, and software/hardware implementers who need standardized MACs.
Security architects evaluating or integrating MAC-based integrity services.
Test labs and interoperability teams using the provided test vectors and object identifiers.

Why choose universal-hash MACs: They offer provable security under assumptions about the encryption primitive and are suitable where efficient, high-speed authentication is required.

Related standards

ISO/IEC 9797‑1 (block cipher MAC mechanisms)

ISO/IEC 18033‑3 (block ciphers) and ISO/IEC 18033‑4 (stream ciphers)

ISO/IEC 18031 (random bit generation)

Keywords: ISO/IEC 9797‑3:2011, MAC, universal hash-function, UMAC, Badger, Poly1305‑AES, GMAC, message authentication, integrity, nonce, tag, block cipher, stream cipher.

ISO/IEC 9797-3:2011 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

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