用vue生成RSA分段加密代码

首先，需要安装jsencrypt库，可以通过npm进行安装：

npm install jsencrypt --save

然后，在Vue组件中引入jsencrypt库：

import JSEncrypt from 'jsencrypt'

接下来，可以定义一个generateRSA方法，用于生成RSA密钥对：

generateRSA() {
  const encrypt = new JSEncrypt({ default_key_size: 2048 })
  encrypt.getKey()
  this.publicKey = encrypt.getPublicKey()
  this.privateKey = encrypt.getPrivateKey()
}

在上述代码中，default_key_size参数指定了RSA密钥长度为2048位，getPublicKey和getPrivateKey方法用于获取公钥和私钥。

接下来，可以定义一个encrypt方法，用于对数据进行分段加密：

encrypt() {
  const encrypt = new JSEncrypt()
  encrypt.setPublicKey(this.publicKey)
  const data = this.inputData
  const chunkSize = 117 // RSA加密分段长度为117字节
  let result = ''
  for (let i = 0, len = data.length; i < len; i += chunkSize) {
    const chunk = data.substring(i, i + chunkSize)
    const encrypted = encrypt.encrypt(chunk)
    result += encrypted + '|'
  }
  this.encryptedData = result
}

在上述代码中，setPublicKey方法用于设置公钥，chunkSize指定了RSA加密分段长度为117字节，循环遍历数据并对每个分段进行加密，最终将所有分段加密结果拼接在一起。

完整代码示例：

<template>
  <div>
    <div>
      <label for="publicKey">公钥：</label>
      <textarea id="publicKey" v-model="publicKey"></textarea>
    </div>
    <div>
      <label for="privateKey">私钥：</label>
      <textarea id="privateKey" v-model="privateKey"></textarea>
    </div>
    <div>
      <label for="inputData">待加密数据：</label>
      <textarea id="inputData" v-model="inputData"></textarea>
    </div>
    <div>
      <button @click="generateRSA">生成RSA密钥对</button>
      <button @click="encrypt">加密</button>
    </div>
    <div>
      <label for="encryptedData">加密结果：</label>
      <textarea id="encryptedData" v-model="encryptedData"></textarea>
    </div>
  </div>
</template>

<script>
import JSEncrypt from 'jsencrypt'

export default {
  name: 'RSAEncrypt',
  data() {
    return {
      publicKey: '',
      privateKey: '',
      inputData: '',
      encryptedData: ''
    }
  },
  methods: {
    generateRSA() {
      const encrypt = new JSEncrypt({ default_key_size: 2048 })
      encrypt.getKey()
      this.publicKey = encrypt.getPublicKey()
      this.privateKey = encrypt.getPrivateKey()
    },
    encrypt() {
      const encrypt = new JSEncrypt()
      encrypt.setPublicKey(this.publicKey)
      const data = this.inputData
      const chunkSize = 117 // RSA加密分段长度为117字节
      let result = ''
      for (let i = 0, len = data.length; i < len; i += chunkSize) {
        const chunk = data.substring(i, i + chunkSize)
        const encrypted = encrypt.encrypt(chunk)
        result += encrypted + '|'
      }
      this.encryptedData = result
    }
  }
}
</script>