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Posted by NC on 09/29/05 21:31
Thierry wrote:
>
> The function md5 encrypts a string :
No, it doesn't. MD5 is not an encryption algorithm, it's a
hashing algorithm. Hashed strings are not supposed to be
"decrypted"; this is not what hashing is for.
> But how do we uncrypt a md5 string ?
Since you didn't encrypt the string, you can't decrypt it, either.
The only way to "decrypt" MD5 is to use a dictionary attack; if it
fails, only brute force is left.
Cheers,
NC
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