既然爆库了,就来说说网站密码如何保存吧 - V2EX
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feilaoda

既然爆库了,就来说说网站密码如何保存吧

  •  
  •   feilaoda Dec 23, 2011 5223 views
    This topic created in 5239 days ago, the information mentioned may be changed or developed.
    数据库保存:md5(password + salt)这样么?
    还是 md5( md5(password) + salt )?
    我记得vbb登陆的时候用js取md5送到后台,没有https,后台直接存放md5。

    怎样保存比较安全?邮箱地址要加密保存否?
    14 replies    1970-01-01 08:00:00 +08:00
    frittle
        1
    frittle  
       Dec 23, 2011
    电邮地址不能,也不该hash吧,不然系统或管理员要发电邮给用户怎么发
    feilaoda
        2
    feilaoda  
    OP
       Dec 23, 2011
    @frittle email不hash,但加密存储,可解密。或者,没必要加密,直接明文存就行了。
    9hills
        3
    9hills  
       Dec 23, 2011
    md5(username-password-salt) 即可
    args
        4
    args  
       Dec 23, 2011
    依靠md5就不可能安全吧。
    hermitu
        5
    hermitu  
       Dec 23, 2011
    安全都是相对来说的,MD5总比明文保存 那样裸奔好吧
    delectate
        6
    delectate  
       Dec 23, 2011
    以前我做个小型的进销存,是这么弄得:
    md5(base64(md5(base64(password) + salt )))
    glume
        7
    glume  
       Dec 23, 2011
    vbb 多么遥远的传说,我记得vbb是md5( md5(password) + salt )?
    doublleft
        8
    doublleft  
       Dec 23, 2011
    md5(base64(md5($pass) . md5($datetime)), 16) . md5($mail)
    est
        9
    est  
       Dec 23, 2011
    bcrypt
    real_newbie
        10
    real_newbie  
       Dec 23, 2011
    bcrypt
    kongruxi
        11
    kongruxi  
       Dec 23, 2011
    用了rails下devise这个gem,所以是Bcrypt
    donwa
        12
    donwa  
       Dec 23, 2011
    明显是:md5( md5(password) + salt )

    md5(password + salt) 碰撞太容易了。
    bhuztez
        13
    bhuztez  
       Dec 23, 2011
    scrypt
    feilaoda
        14
    feilaoda  
    OP
       Dec 23, 2011
    @donwa 我也觉得md5( md5(password) + salt ) 比较好一些,前段js md5后送到后台
    登陆可以不用https
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