Re: crypt (3) significant key lenght (DES, MD5, SHA)

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cc linux-man

On Thursday 2009-10-22 14:01, Jan Engelhardt wrote:

>In CRYPT.3:
>>"In the SHA implementation the entire key is significant (instead of 
>>only the first 8 bytes in MD5)."
>>
>>Is wrong the old version? (though I think MD5 has more than 8 bytes 
>>significant of the key) Can someone clarify this? or I am missing 
>>something?
>
>Correct would be:
>
>* DES only uses the first 8 plaintext chars
>* Blowfish $2a$ only uses the first 72 plaintext chars
>
>all others (MD5 $1$, SHA 256/512 $5$/$6$) seem to be using the entire 
>plaintext.
>

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