RMD160(1) BSD Reference Manual RMD160(1)
rmd160 - calculate a message-digest fingerprint (checksum) for a file
rmd160 [-b] [-p | -s string | file ...] rmd160 -G [file ...] rmd160 -t | -x | -c [checklist ...] rmd160sum [-b | -t] [file ...]
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.
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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