md5 and sha1 in encryption of connectionstrins in web.config

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can i use md5 and SHA1 algorithm for encryption of connection strings in web.config file.if i can then please post some examples.
thanks
srivas

Posted 10-Jul-12 5:24am

srinvas

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[no name] 10-Jul-12 11:31am

So you have not actually tried anything? You just want someone to do your job for you?

Sergey Alexandrovich Kryukov 10-Jul-12 15:40pm

Try what? MD5 or SHA1 are not encryption algorithm in that sense that they are irreversible. The question simply makes no sense.
--SA

[no name] 10-Jul-12 11:48am

Ah I see, nevermind. You already have answers to this from your previous questions.

srinvas 10-Jul-12 12:12pm

no i had tried with RSAProtectedConfigurationProvide method but i had a question whether i can use md5 and sha1 algorithm for encryption of connection string

Sergey Alexandrovich Kryukov 10-Jul-12 15:42pm

Makes no sense. There is no way to "decrypt" the hash.
--SA

2 solutions

Solution 2

The question makes no sense; OriginalGriff explained why.

For connection string encryption, please see the following CodeProject answers:
http://www.codeproject.com/search.aspx?doctypeid=5&q=encrypt+connection+string[^].

—SA

Posted 10-Jul-12 9:44am

Sergey Alexandrovich Kryukov

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OriginalGriff · Accepted Answer · 2012-07-10T06:08:00

You cannot use MD5 or SHA for encrypting anything.

They are not encryption algorithms, they are hashing algorithms.

The difference is that encryption algorithms are reversible - you can restore the original input from the output with an appropriate key. Hashing algorithms are not reversible. You cannot retrieve the original input, with or without a key.

If you use MD5 or SHA to "encrypt" your connection strings, you cannot decrypt them to get the string you need back again.