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Премиум
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    Welcome by Ivan & Filip
  • Урок 2. 00:05:39
    Course Structure
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    IMPORTANT – Community Forum
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    Overflow Vulnerability Introduction
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    BatchTransfer Error Explained
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    Solidity Vulnerability Demonstrated
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    Fixing the Bug with SafeMath
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    Introduction
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    Why do we need a special Mindset?
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    Part 1 – The New Ecosystem
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    Part 2 – The High Cost of Failure
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    Part 3 – Difficult Upgradeability
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    Part 3 Bonus – How to Plan for Proxy Upgrades
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    Introduction
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    The Dangers with External Contract Calls
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    Re-entrency Attacks
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    Re-entrency Attacks – Solution
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    Sending Ether – How to do it safely
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    Initiating External Calls
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    Push & Pull – Contract Design
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    Introduction
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    DAO Hack Explanation
  • Урок 23. 00:13:22
    DAO Hack – Replicating the Vulnerability Part 1
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    DAO Hack – Replicating the Vulnerability Part 2
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    Parity Freeze Hack Explained
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    Parity Freeze Hack – Replicating the Vulnerability
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    Introduction
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    Solidity Error Handling Recap
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    What is an Invariant?
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    Combine Assert & Invariants
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    How to Use Modifiers Correctly
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    Introduction
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    Contract Overview
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    Part 1 – Storage Contract
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    Part 2 – Functional Contract
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    Part 3 – Proxy Contract
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    Part 4 – Deploy & Test
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    Summary
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    Introduction
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    What Was Wrong with Our Simple Proxy?
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    Part 1 – Setup Environment
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    Part 2 – Building a New Storage Contract
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    Part 3 – Building the Functional Contract
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    Part 4 – Building the Proxy Contract Base
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    Part 5 – Building Proxy Functionality
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    Part 6 – Building Migrations & Deploying
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    Part 7 – Interacting & Testing our proxy
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    Part 8 – Improving & Updating
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    Part 9 – Owner Issue Clarification
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    Part 10 – Fixing the Owner Issue
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    Part 11 – Summary
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    BONUS: A Better Way to Upgrade
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    Introduction
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    What is it and why do we need it?
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    Implementation
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    Congratulations and Well Done!
  • Урок 57. 00:04:16
    Time to upload your Certificate on LinkedIn!