MirOS Manual: rmd160(1)

RMD160(1)                    BSD Reference Manual                    RMD160(1)

NAME

     rmd160 - calculate a message-digest fingerprint (checksum) for a file

SYNOPSIS

     rmd160 [-b] [-p | -s string | file ...]
     rmd160 -G [file ...]
     rmd160 -t | -x | -c [checklist ...]
     rmd160sum [-b | -t] [file ...]

DESCRIPTION

     rmd160 takes as input a message of arbitrary length and produces as out-
     put a 160-bit "fingerprint" or "message digest" of the input. It is con-
     jectured that it is computationally infeasible to produce two messages
     having the same message digest, or to produce any message having a given
     prespecified target message digest.

     The RIPEMD-160 algorithm is intended for digital signature applications,
     where a large file must be "compressed" in a secure manner before being
     encrypted with a private (secret) key under a public-key cryptosystem
     such as RSA.

     The options are as follows:

     -b      Print the checksum as binary to stdout. Ignored in GNU mode.

     -c [checklist ...]
             Compares all checksums contained in the file checklist with newly
             computed checksums for the corresponding files. Output consists
             of the digest used, the file name, and an OK or FAILED for the
             result of the comparison. This will validate any of the supported
             checksums (see cksum(1)). If no file is given, stdin is used.

     -G      Enable GNU md5sum compatible output mode. Can also be enabled by
             calling this programme as rmd160sum.

     -p      Echoes stdin to stdout and appends the RIPEMD-160 sum to stdout.

     -s string
             Prints a checksum of the given string.

     -t      Runs a built-in time trial. Ignored in GNU mode.

     -x      Runs a built-in test script.

     The RIPEMD-160 sum of each file listed on the command line is printed
     after the options are processed.

SEE ALSO

     cksum(1), md5(1), sha1(1)

     RIPEMD-160 is part of the ISO draft standard "ISO/IEC DIS 10118-3" on
     dedicated hash functions.

MirOS BSD #10-current         November 17, 2009                              1

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