New Login: need crypt

Carl Ellison cme at ellisun.sw.stratus.com
Thu Apr 4 07:36:02 AEST 1991


In article <bigpryct at dce.ie> em at dce.ie (Eamonn McManus) writes:
>There is an undocumented routine called bigcrypt() which is called in
>essentially the same way as crypt().  It produces the same result as
>crypt() for short passwords (<= 8 plaintext characters); for longer
>passwords it apparently crypts each block of eight characters separately
>and concatenates the results.

If I understand this correctly, bigcrypt() will let you know, through the
number of output blocks, truncate(password_length / 8).

Needless to say, that's a security flaw.



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