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8 lines
392 B
8 lines
392 B
import utils from 'ethereumjs-util';
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// Hash and add same prefix to the hash that ganache use.
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module.exports = function (message) {
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const messageHex = Buffer.from(utils.sha3(message).toString('hex'), 'hex');
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const prefix = utils.toBuffer('\u0019Ethereum Signed Message:\n' + messageHex.length.toString());
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return utils.bufferToHex(utils.sha3(Buffer.concat([prefix, messageHex])));
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};
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