1'use strict'; 2 3var crypto = require('crypto'); 4 5function md5(bytes) { 6 if (typeof Buffer.from === 'function') { 7 // Modern Buffer API 8 if (Array.isArray(bytes)) { 9 bytes = Buffer.from(bytes); 10 } else if (typeof bytes === 'string') { 11 bytes = Buffer.from(bytes, 'utf8'); 12 } 13 } else { 14 // Pre-v4 Buffer API 15 if (Array.isArray(bytes)) { 16 bytes = new Buffer(bytes); 17 } else if (typeof bytes === 'string') { 18 bytes = new Buffer(bytes, 'utf8'); 19 } 20 } 21 22 return crypto.createHash('md5').update(bytes).digest(); 23} 24 25module.exports = md5; 26