Verfahren zum Aufbau Sicherer Hash-Funktionen aus Bitmischern

Details

Veröffentlichungs-Nr.

EP3468147

Aktenzeichen

EP18198697

Anmeldetag

4. Oktober 2018

Veröffentlichung

30. Juni 2021

Erteilung

30. Juni 2021

Rechtsraum

EP

IPC

H04L29/06H04L9/32H04L9/06

Abstract

Provided is a method and system for producing message authentication tags and a method and system for producing hash values using bit-mixers. The methods include producing a message authentication or hash value by obtaining a message; segmenting, padding by an electronic processor, the message into a number of equal sized message blocks comprising a first message block, one or more subsequent message blocks, and a final message block; performing, by the electronic processor, a first bit-mixing operation on the first message block with an initialization value; performing, by the electronic processor, subsequent bit-mixing operations on the one or more subsequent message blocks and the final message block with a previous message block; and producing, by the electronic processor, the message authentication tag based on the first bit-mixing operation and the subsequent bit-mixing operations, employing a secret key material.

Anmelder

Firma

The Boeing Company

Land

🇺🇸 USA

Fachgebiete