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Value Added Services (VAS) is the protocol used by NFC capable passes in Apple Wallet. Access to this protocol is heavily restricted on both the device end (a special certificate issued by Apple is required to create these passes) and the reader end (NDA enforced confidentiality). As such, a desire arose to better understand the protocol in order to explore additional use cases and examine its cryptographic integrity. There are gaps in understanding in certain parts of this protocol, however this document contains the minimum necessary understanding to automatically select, read data from, and decrypt a pass.
Importantly, this specification does not enable a malicious actor to read the data from a pass for which they do not have both the reader's private key, and the pass type identifier. Imp
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Simple python wrapper to give SSH a password for automation purposes (with output capture)
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A collection of tips for when you need to minimize the number of allocations in your Go programs.
Use the go profiler to identify which parts of your program are responsible for most allocations.
⚠️ Never apply these tricks blindly (i.e. without measuring the actual performance benefit/impact). Most of these tricks cause a tradeoff between reducing memory allocations and other aspects (including e.g. higher peak memory usage, higher CPU usage, lower maintainability, higher probability of introducing subtle bugs). Only apply these tricks if the tradeoff in every specfic case is globally positive.
This tutorial demonstrates how to create a basic Python Flask implementation with React Flow.
Building Complex Drag & Drop Visual AI Workflows with React Flow and Python Flask
Created by @rUv
This tutorial demonstrates how to create a Python Flask implementation with React Flow to build complex AI workflows, reasoning systems, and comprehension modeling tools.
React Flow is a powerful open-source library for building interactive node-based interfaces in React applications. Its flexibility and extensibility make it an excellent choice for creating sophisticated AI applications.