Reminisce for Securing Private-Keys in Public

Shlomi Dolev, Komal Kumari, Sharad Mehrotra, Baruch Schieber, Shantanu Sharma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The private key associated with a blockchain is the sole means of linking a cryptocurrency asset to its owner, and any loss or compromise of this key could result in significant consequences. Generally, crypto-wallets suggest a private key created from a string of words, which can be stored in a private record such as a piece of paper. The fact that the private record holds the secret words and can leak the private key poses security concerns. In addition, private records are susceptible to the risk of getting lost or destroyed, resulting in loss of assets. Furthermore, clients lack complete control over generating their private key, as the wallet itself creates it. Our approach enables clients to securely generate and manage their own private keys, minimizing the risk of key loss. We developed an open-source technique allowing clients to employ memorized secrets to store and retrieve their private keys. We utilize Bloom filters using hash functions, such as SHA-256, to store and retrieve the private key from the Bloom filter.

Original languageEnglish (US)
Title of host publicationCyber Security, Cryptology, and Machine Learning - 8th International Symposium, CSCML 2024, Proceedings
EditorsShlomi Dolev, Michael Elhadad, Mirosław Kutyłowski, Giuseppe Persiano
PublisherSpringer Science and Business Media Deutschland GmbH
Pages168-177
Number of pages10
ISBN (Print)9783031769337
DOIs
StatePublished - 2025
Event8th International Symposium on Cyber Security, Cryptology, and Machine Learning, CSCML 2024 - Be'er Sheva, Israel
Duration: Dec 19 2024Dec 20 2024

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume15349 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference8th International Symposium on Cyber Security, Cryptology, and Machine Learning, CSCML 2024
Country/TerritoryIsrael
CityBe'er Sheva
Period12/19/2412/20/24

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • General Computer Science

Keywords

  • bitcoin
  • blockchain
  • Bloom filter
  • crypto-currency
  • Crypto-wallets
  • memorized secrets.
  • public cloud

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