Hey,
The Linux manpage for crypt()[1] contains the following statement as the
last sentence of the NOTES section:
In the SHA implementation the entire key is significant (instead of
only the first 8 bytes in MD5).
It should probably say "DES" where it says "MD5" (and maybe "MD5/SHA"
where it says "SHA"), because in MD5 password hashing, the entire key is
significant, not just the first 8 bytes.
Quoting the glibc documentation[2]:
For the MD5-based algorithm, [...] Every character in the key is
significant.
Best regards,
Marcel Moreaux
[1] http://www.kernel.org/doc/man-pages/online/pages/man3/crypt.3.html
[2] http://www.gnu.org/s/libc/manual/html_node/crypt.html#crypt
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