import { Sha256 } from '@aws-crypto/sha256-js' import CryptoJs from 'crypto-js' import encHex from 'crypto-js/enc-hex' onmessage = async function (event) { const data = event.data // 获取文件数据 // chunk方式读取文件 const chunkSize = 1024 * 1024 // 每次读取1MB const fileSize = data.size // 文件大小 let offset = 0 // 偏移量 const createSha256Uint8Array32 = new Sha256() // SHA256 Unit8Array(32) const createSha256 = CryptoJs.algo.SHA256.create() // SHA256 Hex const createMD5 = CryptoJs.algo.MD5.create() // MD5 while (offset < fileSize) { const chunk = new Uint8Array(await data.slice(offset, offset + chunkSize).arrayBuffer()) // 读取chunkSize大小的文件块 const wordArray = CryptoJs.lib.WordArray.create(chunk) createSha256.update(wordArray) createMD5.update(wordArray) createSha256Uint8Array32.update(chunk) offset += chunkSize // 计算进度 // const progress = Math.min(100, Math.round((offset / fileSize) * 100)) // console.log(progress) // 打印进度 // postMessage({ progress, offset, fileSize, }) // 将进度发送给主线程 } const [sha256Uint8Array32, sha256, md5] = await Promise.all([ createSha256Uint8Array32.digest(), // SHA256 Unit8Array(32) encHex.stringify(createSha256.finalize()), // SHA256 Hex encHex.stringify(createMD5.finalize()), // MD5 ]) const obj = { md5, // MD5 sha256, // SHA256 Hex sha256Int8Array32: Array.from(new Int8Array(sha256Uint8Array32)), // SHA256 Int8Array(32) } console.log(obj) // 打印结果对象 postMessage(obj) // 将结果对象发送给主线程 } 加功能计算文件sha1

您可以使用crypto-js中提供的SHA1算法来计算文件的SHA1值，代码如下：

import { Sha256 } from '@aws-crypto/sha256-js'
import CryptoJs from 'crypto-js'
import encHex from 'crypto-js/enc-hex'
import encBase64 from 'crypto-js/enc-base64'
import encUtf8 from 'crypto-js/enc-utf8'

onmessage = async function (event) {
  const data = event.data // 获取文件数据

  // chunk方式读取文件
  const chunkSize = 1024 * 1024 // 每次读取1MB
  const fileSize = data.size // 文件大小
  let offset = 0 // 偏移量

  const createSha256Uint8Array32 = new Sha256() // SHA256 Unit8Array(32)
  const createSha1 = CryptoJs.algo.SHA1.create() // SHA1 Hex
  const createSha256 = CryptoJs.algo.SHA256.create() // SHA256 Hex
  const createMD5 = CryptoJs.algo.MD5.create() // MD5

  while (offset < fileSize) {
    const chunk = new Uint8Array(await data.slice(offset, offset + chunkSize).arrayBuffer()) // 读取chunkSize大小的文件块
    const wordArray = CryptoJs.lib.WordArray.create(chunk)

    createSha256.update(wordArray)
    createSha1.update(wordArray)
    createMD5.update(wordArray)
    createSha256Uint8Array32.update(chunk)

    offset += chunkSize

    // 计算进度
    // const progress = Math.min(100, Math.round((offset / fileSize) * 100))
    // console.log(progress) // 打印进度
    // postMessage({ progress, offset, fileSize, }) // 将进度发送给主线程
  }

  const [sha256Uint8Array32, sha1, sha256, md5] = await Promise.all([
    createSha256Uint8Array32.digest(), // SHA256 Unit8Array(32)
    encHex.stringify(createSha1.finalize()), // SHA1 Hex
    encHex.stringify(createSha256.finalize()), // SHA256 Hex
    encBase64.stringify(createMD5.finalize()), // MD5
  ])

  const obj = {
    md5, // MD5
    sha1, // SHA1 Hex
    sha256, // SHA256 Hex
    sha256Int8Array32: Array.from(new Int8Array(sha256Uint8Array32)), // SHA256 Int8Array(32)
  }

  console.log(obj) // 打印结果对象
  postMessage(obj) // 将结果对象发送给主线程
}

需要注意的是，SHA1算法已经不再被推荐使用，因为其已经不再具备足够的安全性。建议您使用更为安全的算法，如SHA256。