Marcel Waldvogel

Netfuture: The future is networked

  • Blog
    • Blog
    • Blockchain critique
  • Publications
  • Open Source Software
    • TLS Interposer
    • Automatic SOGo configuration for iOS (iPhone/iPad) and MacOSX
    • vcard4-ts: vCard version 4 parsing, TypeScript-style
    • fake-super: Recover rsync attributes
    • dnstemple: DNS with Templates
  • Tutorials
    • Tutorial: Cyclic Redundancy Check (CRC) Computation
      • Background: Asynchronous Serial Communications (RS-232C)
      • Parity Bits
      • Checksums
      • Intermission: Classes of errors
      • Check Digits
      • Error Correction Codes (ECC)
      • Cyclic Redundancy Check sequences (CRC): A Big Mystery?
      • CRC Hardware Operation
      • Software CRC Computation
      • Mathematical Background
      • Polynomial view
  • About
    • Deutsch
    • English
  • «The Cloud» does not exist

    «The Cloud» does not exist

    What is cloud anyway? And why are not all clouds the same? An overview to create clarity. The topic of the cloud is currently on everyone’s lips again, and decisions are pending in many places. Clarity is essential for assessing the impact on individuals, the economy and society. That’s why we’re starting a small series…

    2022-11-06
  • Rejuvenation for Pro Senectute through NFT and Metaverse?

    Rejuvenation for Pro Senectute through NFT and Metaverse?

    Pro Senectute beider Basel, a foundation to help the elderly around Basel, launched its NFT project last week and already informed about its Metaverse commitment beforehand. According to a media release, Michael Harr, managing director of the 15-million Basel-based company, wants to use the purchase of these “properties” in a “central location” in two online…

    2022-10-24
  • What is an NFT, behind the scenes?

    What is an NFT, behind the scenes?

    “NFT” is currently on everyone’s lips again, and not only because of Pro Senectute. But what is actually behind the full-bodied promises of the NFT advocates? For more insights on NFTs and the entire blockchain ecosystem, click here. You can also read this text in German 🇩🇪. “NFT” stands for “Non-Fungible Token” and is being…

    2022-10-12
  • Offline digital cash?

    Offline digital cash?

    The question of using digital money in the event of a network outage comes up again and again. Here is an overview of the options and their pros and cons.

    2022-06-26
  • The NFT Danger Zone

    The NFT Danger Zone

    Susanna Petrin closes her NFT experiment with a dystopia of life after we destroyed our environment: Admiring our NFTs while strolling through the metaverse. I hope we can avert both.

    2022-06-17
  • A business-driven blockchain evaluation flow chart

    A business-driven blockchain evaluation flow chart

    Yesterday, Rene Jan Veldwijk posted a blockchain decision flowchart he had previously used in a presentation.

    2022-06-06
  • Blockchain in a nutshell

    Blockchain in a nutshell

    People often try to claim blockchain use cases without much deliberation. Here is a condensed, quotable version of «Hitchhiker’s Guide to the Blockchain» and «Data lifecycle questions, not only for Blockchains».

    2022-05-23
  • Web3 is just expensive P2P

    Web3 is just expensive P2P

    Web3 claims to be the only way to save us from commercial entities defining what we can see and what not. Yet, it does exactly this: It results in commercialized entities defining what we can see and what not.

    2022-05-16
  • chrony NTS certificate reload

    chrony NTS certificate reload

    The chrony NTS daemon has no way to automatically reload its NTS certificate. A quick hack fixes this.

    2022-05-06
  • Hitchhiker’s Guide to the Blockchain

    Hitchhiker’s Guide to the Blockchain

    Blockchain, cryptocurrencies, smart contracts, Web3 and NFT are the talk of the town. Almost everyone has an opinion, but hardly anyone understands the foundations or relationships. The goal of this series, whose first part you are currently reading, is to provide a structured presentation of promises, the technology behind, and the reality. Using everyday analogies…

    2022-04-09
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