从安全的角度来讲，密码和用户名可以允许 Unicode 吗？ - V2EX
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call43848

从安全的角度来讲，密码和用户名可以允许 Unicode 吗？

  •   
  •   call43848 Mar 23, 2017 2324 views
    This topic created in 3321 days ago, the information mentioned may be changed or developed.
  • unicode
  • 密码
  • 来讲
  • 允许
    3 replies    2017-03-26 20:13:10 +08:00
    noli
        1
    noli  
       Mar 24, 2017 via iPhone   1
    当然可以，但是很少这么做的原因是有些 unicode 字符很难被用户输入但又有可能被误用。

    不过说实话，对称密码提供的安全已经不可能有什么新的进展了。所以考虑支持什么字符集并没有什么卵用？
    call43848
        2
    call43848  
    OP
       Mar 24, 2017
    @noli 谢谢～ 可能有的好处也许是可以把密码空间增大那么一点点
    realpg
        3
    realpg  
    PRO
       Mar 26, 2017   1
    @call43848 #2
    都是 hash 存储的，空间就跟长度有关
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