Monthly Archives: December 2021

Edge computing is a new fashion of distributed computing bringing computation closer to data e.g., sensors and actuators. The consortium of ETSI is driving the standardization in the community of ICT. With Multi access Edge Computing (short MEC) the context, … Continue reading →

Protobuf allows to encode/ decode network payload (nice article https://djdongjin.github.io/protobuf/) generate code for RPC and publish-subscribe messages.

Let us build a timeline: ERC-725 as the fully fledged approach, using private keys, the account plus own identity contract, to sign logins and identity claims. ERC-735 managed these signed identity claims. ERC-1056 (aka ethrDID) as the small brother of … Continue reading →

The fog5 is a framework for end-2-end edge computing (MEC), compatible with ETSI OSM, consisting of the following two buildings blocks with respective abstraction API: A so called “fog Infrastructure Manager” (FIM) virtualize the hardware infrastructure, such as computational, communication, storage and I/O resources. It is like a … Continue reading →

Zenoh (ZEro Network OverHead) is a distributed, multi meshed “global state distribution” and computation network on same level as DDS. The conceptual elements are Topics for publish–subscribe of resources Resources as key-value set stored (put) and queried (pull/ queryable) used … Continue reading →

https://www.ethernodes.org/nodes or https://github.com/ethereum/devp2p/blob/master/discv4.md

Sources: https://github.com/fravoll/solidity-patterns https://github.com/maxwoe/solidity_patterns https://github.com/fodisi/solidity-design-patterns https://github.com/OpenZeppelin/ The smart contract approach e.g., of Ethereum distinguish types of design pattern. Use them at your own risk! Behavior pattern: As interaction flow between accounts Auction [1] [2]: Multiple accounts bid, the highest or a … Continue reading →

Main descriptive parts taken from: https://learnthings.online/other/2020/03/05/introduction-to-hyperledger-sovereign-identity-blockchain-solutions-indy-aries-ursa The W3C Verifiable Credential Model (short VCM) shows the base idea of Self Sovereign Identity (Short SSI) To trust the information (claims) in a credential, it is necessary that the verifier trust the issuer … Continue reading →

This guide describes how an Ethereum (short ETH) network and smart contract, not mandatory ERC20 interface Token Contract compliant, become installed on your local machine. For separating the concern we will stepwise open five terminal window. Bootstrap the Ethereum network … Continue reading →

Data Distribution Service (short DDS) is a ISO/OSI >= transport layer protocol (UDP, TCP, Serial and custom), developed by the Object Management Group (OMG). Like MQTT, DDS works with the messaging pattern publish-subscribe but not have a central component like … Continue reading →