md5

i was thinking sending an email with the md5 password as token and check if the email+password are correct before showing the recover password form 1) user enters mail 2) if mail exists, send an email to with it with password as token 3) when user click to link: check if mail and md5 password are correct, if so: 4) show password generator form -EDIT- So how could be safer without adding any column to the user table? Pekka supports GoFundMonica It's at least theoretically unsafe. See e.g. md5 decoding. How they do it? and MD5 security is fine? But why do that in the first place? The following

I'd like to implement the CRC32 and MD5 algorithms on my own but I'm still trying to wrap my head around the different sources I've found on the subject. Could someone helpful point me to a ressource that explains the algorithms in a simple format or post a bullet list of the different steps so I can attempt to fill them in. TIA. Here's the respective wikipedia pages on each. I understand part of what's being done but bitwise operations are something I have difficulty with. That and mathematics isn't my forte. http://en.wikipedia.org/wiki/Cyclic_redundancy_check http://en.wikipedia.org/wiki

I'm storing unique user-agents in a MySQL MyISAM table so when I have to look if it exists in the table, I check the md5 hash that is stored next to the TEXT field. User-Agents { id - INT user-agent - TEXT hash - VARCHAR(32) // md5 } There is any way to do the same but using a 32-bit integer and not a text hash? Maybe the md5 in raw format will be faster? That will requiere a binary search. [EDIT] MySQL don't handle hash searches for complete case-sensitive strings? Let MySQL do the hard work for you. Use a CHAR column and create an index on that column. You could convert and store the hash as

I'm trying to authenticate to my LDAP server using DIGEST-MD5 encryption. While using Simple encryption it works just fine, but I can't have the password sent over the network in plain-text, for obvious reasons. The strange thing is that while using Softerra LDAP Browser I can connect to the server using Digest-MD5, but through my Code I receive a range of errors. Here is a snippet of code from my LDAP authentication class where I try to set the security authentication etc before creating the initial context. Hashtable env = new Hashtable(11); env.put(Context.SECURITY_AUTHENTICATION, "DIGEST

#结合使用的安全优势与总结# ##前言## 写到这里基本上笔者在请求中遇到的问题,以及运用到实践中的解决方案,基本上分为,请求唯一性,单设备登录,单点登录,MD5校验 这几种校验的小技巧,在之前都对着几种校验方式进行也一些独立的说明(还没有看过的可以先去游览查阅一下,在请求安全模块中) 在本章里面会着重说明怎么样综合使用,如何获得比较高的安全性,以及会简单介绍一下方便使用的一种高级加密方法. ##1.回顾## ###1.1 单设备登录.单点登录### 每次调用登录接口获取的ID都是一个临时ID.当下次登录的时候重新生成在覆盖,就可以达到单设备登录的 效果了,这个临时ID对应着真正的用户ID每次客户端请求都是拿着临时ID请求过来然后服务器做验证,而且 这个临时ID和真正ID是存储在一个共享的区域,其他的模块都能获取到这一项对应 ###1.2 MD5校验### MD5在请求安全中关键用到的基本上就是对于请求参数进行校验,对与服务器来言排除系统问题最大的问题 就是害怕请求被拦截,拦截修改之后就有很多漏洞的可能性了, 为了避免被拦截,参数被修改这种文件的常 用方法就是对请求参数进行校验,就算拦截了请求参数修改了只要模拟不出MD5加密出来的值,在服务器过滤 器直接就会进行拦截. 我这边推荐的请求校验方法在传递参数的时候带上 MD5值 随机数 时间戳 当然这几 个都是由客户端生成 MD5