Ethereum Name Service

Abstract

This is a vote to approve ENSIP-15: Normalization Standard.

Motivation

EP3.7 Motivation

• Normalization isn’t enforced on-chain.
• There is no code for the DAO to execute.
• Approval for ENSIP-15 should be confirmed through a social vote.

ENSIP-15 Motivation

• Since ENSIP-1 (originally EIP-137) was finalized in 2016, Unicode has evolved from version 8.0.0 to 15.0.0 and incorporated many new characters, including complex emoji sequences.
• ENSIP-1 does not state the version of Unicode.
• ENSIP-1 implies but does not state an explicit flavor of IDNA processing.
• UTS-46 is insufficient to normalize emoji sequences. Correct emoji processing is only possible with UTS-51.
• Validation tests are needed to ensure implementation compliance.
• The success of ENS has encouraged spoofing via the following techniques:
  1. Insertion of zero-width characters.
  2. Using names which normalize differently between algorithms.
  3. Using names which appear differently between applications and devices.
  4. Substitution of confusable (look-alike) characters.
  5. Mixing incompatible scripts.

Specification

• Replace ENSIP-1 § Name Syntax “UTS-46 algorithm” with link to ENSIP-15.
• Agree to normalize names according to ENSIP-15 for a safer end-user experience.

  • Examples:

    1. 
    2. 
    3. 

  • Libraries implementing ENSIP-15:

    1. Javascript — adraffy/ens-normalize
    2. Javascript — ensdomains/eth-ens-namehash
    3. Python — namehash/ens-normalize-python

  • Web Frameworks using ENSIP-15:

    1. Javascript — ethers/ethers.io
    2. Javascript — web3/web3.js
    3. Javascript — wagmi-dev/viem
• Names visible to the end-user should be beautified for a more consistent appearance.
  • For example, these labels are the same:

Voting

This vote is a single choice vote. You may vote for one of the following options:

• For
• Against
• Abstain

By voting For this proposal, you are voting in favor of approving ENSIP-15.