Windows 10 系统下 Homestead.yaml 文件中的 authorize 和 keys 如何配置？

官方文档在介绍 Homestead.yaml 文件配置 时，没有提到 authorize 和 keys，所以我就保持默认了。

---
ip: "192.168.10.10"
memory: 2048
cpus: 1
provider: virtualbox

authorize: ~/.ssh/id_rsa.pub

keys:
    - ~/.ssh/id_rsa

folders:
    - map: C:/Code
      to: /home/vagrant/Code

sites:
    - map: homestead.app
      to: /home/vagrant/Code/Laravel/public

databases:
    - homestead

# blackfire:
#     - id: foo
#       token: bar
#       client-id: foo
#       client-token: bar

# ports:
#     - send: 50000
#       to: 5000
#     - send: 7777
#       to: 777
#       protocol: udp

在执行 vagrant up 时报错

Check your Homestead.yaml file, the path to your private key does not exist.

然后我就把 authorize 和 keys 都注释了

---
ip: "192.168.10.10"
memory: 2048
cpus: 1
provider: virtualbox

# authorize: ~/.ssh/id_rsa.pub

# keys:
#     - ~/.ssh/id_rsa

folders:
    - map: C:/Code
      to: /home/vagrant/Code

sites:
    - map: homestead.app
      to: /home/vagrant/Code/Laravel/public

databases:
    - homestead

# blackfire:
#     - id: foo
#       token: bar
#       client-id: foo
#       client-token: bar

# ports:
#     - send: 50000
#       to: 5000
#     - send: 7777
#       to: 777
#       protocol: udp

然后，vagrant up 就成功了，而且也可以 vagrant ssh。

我想知道，设置这两个属性和保持默认对我操作有什么影响。求解答~