hashalot - read a passphrase and print a hash


   hashalot [ -s SALT ] [ -x ] [ -n #BYTES ] [ -q ] [ HASHTYPE ]
   HASHTYPE [ -s SALT ] [ -x ] [ -n #BYTES ] [ -q ]


   hashalot  is  a small tool that reads a passphrase from standard input,
   hashes it using the given hash type, and prints the result to  standard

   Warning:  If  you  do  not  use  the  -x option, the hash is printed in
   binary. This may wedge your terminal settings, or even force you to log

   This  is not a general purpose hasher, only the first line is used, not
   even including the final newline.  Thus,  don't  be  surprised  if  the
   output  seems  to  be  different from other tools -- you'd have to hash
   exactly the same string.

   Supported values for HASHTYPE:
           ripemd160 rmd160 rmd160compat sha256 sha384 sha512


   The option -s SALT specifies an initialization vector  to  the  hashing
   algorithm.  You need this if you want to prevent identical passwords to
   map to identical hashes, which is a security risk.

   If the -x option is given then the hash will be printed as a string  of
   hexadecimal digits.

   The  -n  option  can be used to limit (or increase) the number of bytes
   output. The default is as appropriate for the specified hash algorithm:
   20  bytes  for RIPEMD160, 32 bytes for SHA256, etc. The default for the
   "rmd160compat" hash  is  16  bytes,  for  compatibility  with  the  old
   kerneli.org utilities.

   The  -q  option  causes  hashalot  to  be more quiet and not print some
   warnings which may be superfluous.


   Ben Slusky <sluskyb@paranoiacs.org>

   This manual page was written by Matthias Urlichs <smurf@debian.org>.

                              09 Feb 2004                      HASHALOT(1)


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