Revert signed message prefix to be EIP191 compliant

src/constants/strings.ts

@@ -17,13 +17,4 @@ export const quaisymbol: string = '\u039e'; // "\uD835\uDF63";
  *
  * @category Constants
  */
-export const MessagePrefix: string = '\x19Quai Signed Message:\n';
-
-/**
- * A constant for the [EIP-191](https://eips.ethereum.org/EIPS/eip-191) personal message prefix.
- *
- * (**i.e.** `"\\x19Ethereum Signed Message:\\n"`)
- *
- * @category Constants
- */
-export const EthMessagePrefix: string = '\x19Ethereum Signed Message:\n';
+export const MessagePrefix: string = '\x19Ethereum Signed Message:\n';

src/hash/index.ts

@@ -3,7 +3,7 @@
  */
 
 export { id } from './id.js';
-export { hashMessage, verifyMessage, ethHashMessage, ethVerifyMessage } from './message.js';
+export { hashMessage, verifyMessage } from './message.js';
 export { solidityPacked, solidityPackedKeccak256, solidityPackedSha256 } from './solidity.js';
 export { TypedDataEncoder, verifyTypedData } from './typed-data.js';
 

src/hash/message.ts

@@ -5,7 +5,7 @@ import { concat } from '../utils/index.js';
 import { toUtf8Bytes } from '../encoding/index.js';
 
 import type { SignatureLike } from '../crypto/index.js';
-import { EthMessagePrefix } from '../constants/strings.js';
+
 /**
  * Computes the Quai Network equivalent of the [EIP-191](https://eips.ethereum.org/EIPS/eip-191) personal-sign message
  * digest to sign.
@@ -55,42 +55,3 @@ export function verifyMessage(message: Uint8Array | string, sig: SignatureLike):
     const digest = hashMessage(message);
     return recoverAddress(digest, sig);
 }
-
-/**
- * Computes the [EIP-191](https://eips.ethereum.org/EIPS/eip-191) personal-sign message digest to sign.
- *
- * This prefixes the message with {@link EthMessagePrefix | **EthMessagePrefix**} and the decimal length of `message` and
- * computes the {@link keccak256 | **keccak256**} digest.
- *
- * If `message` is a string, it is converted to its UTF-8 bytes first. To compute the digest of a
- * [**DataHexString**](../types-aliases/DataHex), it must be converted to [**bytes**](../functions/getBytes).
- *
- * This is the same as `hashMessage` except it uses `EthMessagePrefix` instead of `MessagePrefix` and is available for
- * broader compatibility with EVM signing practices.
- *
- * @category Hash
- * @param message
- * @returns
- */
-export function ethHashMessage(message: Uint8Array | string): string {
-    if (typeof message === 'string') {
-        message = toUtf8Bytes(message);
-    }
-    return keccak256(concat([toUtf8Bytes(EthMessagePrefix), toUtf8Bytes(String(message.length)), message]));
-}
-
-/**
- * Return the address of the private key that produced the signature `sig` during signing for `message`.
- *
- * This is the same as `verifyMessage` except it uses `EthMessagePrefix` instead of `MessagePrefix` and is available for
- * broader compatibility with EVM signing practices.
- *
- * @category Hash
- * @param message - The message that was signed.
- * @param sig - The signature to verify.
- * @returns {string} The address of the signer.
- */
-export function ethVerifyMessage(message: Uint8Array | string, sig: SignatureLike): string {
-    const digest = ethHashMessage(message);
-    return recoverAddress(digest, sig);
-}

src/quais.ts

@@ -92,8 +92,6 @@ export {
     id,
     hashMessage,
     verifyMessage,
-    ethHashMessage,
-    ethVerifyMessage,
     solidityPacked,
     solidityPackedKeccak256,
     solidityPackedSha256,