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Memory-hard function

In cryptography, a memory-hard function (MHF) is a function that costs a significant amount of memory to efficiently evaluate. It differs from a memory-bound function, which incurs cost by slowing down computation through memory latency. MHFs have found use in key stretching and proof of work as their increased memory requirements significantly reduce…

Motivation and examples, Variants & Measuring memory hardness

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Motivation and examples

BitcoinSHA-256CPUsX86Litecoin
6 related topics

Variants

Argon2iCatenaPassword hashing functionsSide-channel attacks
4 related topics

Measuring memory hardness

Bandwidth
1 related topics

Overview

CryptographyMemoryMemory-bound functionKey stretchingProof of work
5 related topics

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Overview

Introduction

Motivation and examples

Measuring memory hardness

Variants

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Memory-hard function

Nodes27
Edges26
Triples9
Avg. degree1.93
Density0.074074
Components1

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Memory-hard function

Top relations

related to Variants · 8
Memory-hard function → Argon2d, Argon2i, As, Examples, However, Many, MHFs, This

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Important terminology

memory function mhfs computation hardware hardness time password mining functions imhfs mhf evaluate cost use significantly cpus designed large computing

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
cache timinginstance ofMany of these MHFs have been designed to be used as password hashing functions because of their memory hardness.A notable problem with dMHFs is that they are prone to side-chann…0.80text
Memory-hard functionrelated to VariantsMHFs0.60section
Memory-hard functionrelated to VariantsAs0.60section
Memory-hard functionrelated to VariantsExamples0.60section
Memory-hard functionrelated to VariantsArgon2d0.60section
Memory-hard functionrelated to VariantsArgon2i0.60section
Memory-hard functionrelated to VariantsMany0.60section
Memory-hard functionrelated to VariantsThis0.60section
Memory-hard functionrelated to VariantsHowever0.60section

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