GEEK.SG
Posts tagged with #smart-contract
![My journey to disclosing a vulnerability that can lock up millions in Ethereum](/_next/image?url=https%3A%2F%2Fimagedelivery.net%2FlLmNeOP7HXG0OqaG97wimw%2Fclwdlsohu0000v1qer09du8mo%2F342d124f-3924-4400-bde1-939b8219b709.png%2Fpublic&w=3840&q=75)
My journey to disclosing a vulnerability that can lock up millions in Ethereum
17 September 2021
If I can upgrade the proxy contract because the upgrade code is in the logic contract, can I also upgrade the logic contract? Can an attacker upgrade the logic contract? Can an attacker run arbitrary code on the logic contract?
![Comparing different ways to signal intent from multiple participants on the blockchain](/_next/image?url=https%3A%2F%2Fimagedelivery.net%2FlLmNeOP7HXG0OqaG97wimw%2Fclwdlsohu0000v1qer09du8mo%2Fc256d089-6c2c-4e6a-a002-3bb3d4e06ca5.png%2Fpublic&w=3840&q=75)
Comparing different ways to signal intent from multiple participants on the blockchain
03 February 2021
Multisig wallets presents a way for different participants to issue a transaction on the blockchain but is that the only way? In this article I explore various options to represent the signalling of the intent for a transaction that requires more than one participant to agree on.
![Electronic Transferable Record on Blockchain](/_next/image?url=https%3A%2F%2Fimagedelivery.net%2FlLmNeOP7HXG0OqaG97wimw%2Fclwdlsohu0000v1qer09du8mo%2F8ebd00ae-957c-4556-8bcd-96b33d9e753e.png%2Fpublic&w=3840&q=75)
Electronic Transferable Record on Blockchain
01 December 2020
In this paper I outline how we can built an application leveraging on consensus mechanisms of blockchain to fulfill MLETR requirements.