mirror of https://github.com/status-im/EIPs.git
24 lines
1.1 KiB
Markdown
24 lines
1.1 KiB
Markdown
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---
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eip: 1014
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title: Skinny CREATE2
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author: Vitalik Buterin (@vbuterin)
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category: Core
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type: Standards Track
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status: Draft
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created: 2018-04-20
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---
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### Specification
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Adds a new opcode at 0xf5, which takes 4 stack arguments: endowment, memory_start, memory_length, salt. Behaves identically to CREATE, except using `sha3(msg.sender ++ salt ++ init_code)[12:]` instead of the usual sender-and-nonce-hash as the address where the contract is initialized at.
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### Motivation
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Allows interactions to (actually or counterfactually in channels) be made with addresses that do not exist yet on-chain but can be relied on to only possibly eventually contain code that has been created by a particular piece of init code. Important for state-channel use cases that involve counterfactual interactions with contracts.
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#### Option 2
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Use `sha3(0xff ++ msg.sender ++ salt ++ init_code)[12:]`
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Rationale: ensures that addresses created with this scheme cannot collide with addresses created using the traditional `sha3(rlp([sender, nonce]))` formula, as 0xff can only be a starting byte for RLP for data many petabytes long.
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