makekey man page on SmartOS

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MAKEKEY(1)							    MAKEKEY(1)

       makekey - generate encryption key


       makekey	improves the usefulness of encryption schemes that depend on a
       key by increasing the amount of time required to search the key	space.
       It  attempts to read 8 bytes for its key (the first eight input bytes),
       then it attempts to read 2 bytes for  its  salt	(the  last  two	 input
       bytes).	The output depends on the input in a way intended to be diffi‐
       cult to compute (that is, to require a substantial fraction of  a  sec‐

       The  first  eight  input	 bytes	(the input key) can be arbitrary ASCII
       characters. The last two (the salt) are best chosen  from  the  set  of
       digits,	.,  /,	upper- and lower-case letters. The salt characters are
       repeated as the first two characters of the output.  The	 remaining  11
       output characters are chosen from the same set as the  salt and consti‐
       tute the output key.

       The transformation performed is essentially the following: the  salt is
       used  to	 select	 one  of 4,096 cryptographic machines all based on the
       National Bureau of Standards DES algorithm, but broken in 4,096 differ‐
       ent  ways.   Using  the input key as key, a constant string is fed into
       the machine and recirculated a number of times. The 64 bits  that  come
       out are distributed into the 66 output key bits in the result.

       makekey	is intended for programs that perform encryption. Usually, its
       input and output will be pipes.

       ed(1), vi(1), passwd(4)

       makekey can produce different results depending upon whether the	 input
       is typed at the terminal or redirected from a file.

				  Mar 3, 2008			    MAKEKEY(1)

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