rahash2(1)
NAME
hasher2 - block based hashing utility
SYNOPSIS
hasher2 [-hBrkv] [-a algorithm] [-b size] [-s string] [-i iterations]
[-S seed] [-f from] [-t to] [[file] ...]
DESCRIPTION
This program is part of the radare project.
Hasher allows you to calculate, check and show the hash values of each
block of a target file. The block size is 32768 bytes by default. It's
allowed to hash from stdin using '-' as a target file.
You can hash big files by hashing each block and later determine what
part of it has been modified. Useful for filesystem analysis.
This command can be used to calculate hashes of a certain part of a file
or a command line passed string.
This is the command used by the '#' command of radare.
-a algo Select an algorithm for the hashing. Valid values are md5,
crc32 and sha1
-b blocksize
Define the block size
-i iters Apply the hash Iters times to itself+seed
-B Show per-block hash
-k Show result using OpenSSH's VisualHostKey randomart algorithm
-s string Hash this string instead of using the 'source' and 'hash-
file' arguments.
-S [^]s:string|hexstr
Set seed to hash with, use ^to prefix seed, otherwise its
suffixed.
-f from Start hashing at given address
-t to Stop hashing at given address
-r Show output in radare commands
-v Show version information
-h Show usage help message.
SEE ALSO
radare2(1), rafind2(1), rahash2(1), rabin2(1), radiff2(1), rasm2(1),
ragg2(1), rarun2(1), rax2(1),
AUTHORS
pancake <[email protected]>, nibble <[email protected]>
RAHASH2(1)
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