radare2/man/rahash2.1

.TH RAHASH2 1
.SH NAME
hasher2 \- block based hashing utility
.Dd Nov 11, 2013
.Sh SYNOPSIS
.Nm hasher2
.Op Fl hBrkv
.Op Fl a Ar algorithm
.Op Fl b Ar size
.Op Fl s Ar string
.Op Fl i Ar iterations
.Op Fl S Ar seed
.Op Fl f Ar from
.Op Fl t Ar to
.Op [file] ...
.Sh DESCRIPTION
This program is part of the radare project.
.Pp
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.
.Pp
You can hash big files by hashing each block and later determine what part of it has been modified. Useful for filesystem analysis.
.Pp
This command can be used to calculate hashes of a certain part of a file or a command line passed string.
.Pp
This is the command used by the '#' command of radare.
.Bl -tag -width Fl
.It Fl a Ar algo
Select an algorithm for the hashing. Valid values are md5, crc32 and sha1
.It Fl b Ar blocksize
Define the block size
.It Fl i Ar iters
Apply the hash Iters times to itself+seed
.It Fl B
Show per-block hash
.It Fl k
Show result using OpenSSH's VisualHostKey randomart algorithm
.It Fl s Ar string
Hash this string instead of using the 'source' and 'hash-file' arguments.
.It Fl S Ar [^]s:string|hexstr
Set seed to hash with, use ^to prefix seed, otherwise its suffixed.
.It Fl f Ar from
Start hashing at given address
.It Fl t Ar to
Stop hashing at given address
.It Fl r
Show output in radare commands
.It Fl v
Show version information
.It Fl h
Show usage help message.
.El
.Sh SEE ALSO
.Pp
.Xr radare2(1) ,
.Xr rafind2(1) ,
.Xr rahash2(1) ,
.Xr rabin2(1) ,
.Xr radiff2(1) ,
.Xr rasm2(1) ,
.Xr ragg2(1) ,
.Xr rarun2(1) ,
.Xr rax2(1) ,
.Sh AUTHORS
.Pp
pancake <pancake@nopcode.org>
Fix two minor bugs reported by jvoisin 2013-09-28 17:23:37 +00:00			`.TH RAHASH2 1`
Fix -h and manpages. Kill rsc2 and rasc2 from binr/ 2013-04-02 10:11:20 +00:00			`.SH NAME`
Fix manpages for BSD troff 2013-04-11 23:14:33 +00:00			`hasher2 \- block based hashing utility`
Use latest ACR for triplet fixes and update manpage dates 2013-11-11 11:00:39 +00:00			`.Dd Nov 11, 2013`
* Initial work on the register API for r_debug - r_debug_reg and r_debug_regset - Handles dbg->newstate to force register sync - Only dbg.reg.read() for x86-32 and 64 * Added dummy copy of manpages (from old radare1) 2009-04-15 11:09:36 +00:00			`.Sh SYNOPSIS`
* Write and install manpages * Merge r_trace into r_debug (RDebugTrace) - Implement 'dt' command to manage debugging traces - TODO: Track register values and memory changes - Added dbg.trace and dbg.trace.tag * Added r_sys_now() to retrieve ut64 value of current time - Must check endianness issues * Initial work trying to implement RPATH support to ELF * Less flat command tree - 'dt' is now 'dbt' - 'dk' is now 'dpk' * Some more random syntax cleanup fixes * Say 'yes/no' instead of 'ok/fail' in check-langs script 2010-03-12 17:46:11 +00:00			`.Nm hasher2`
Add randomart print mode (pk/pK commands and rahash2 -k) Random code cleanup Remove borders in webui/two 2013-02-12 01:42:34 +00:00			`.Op Fl hBrkv`
* Initial work on the register API for r_debug - r_debug_reg and r_debug_regset - Handles dbg->newstate to force register sync - Only dbg.reg.read() for x86-32 and 64 * Added dummy copy of manpages (from old radare1) 2009-04-15 11:09:36 +00:00			`.Op Fl a Ar algorithm`
			`.Op Fl b Ar size`
* Write and install manpages * Merge r_trace into r_debug (RDebugTrace) - Implement 'dt' command to manage debugging traces - TODO: Track register values and memory changes - Added dbg.trace and dbg.trace.tag * Added r_sys_now() to retrieve ut64 value of current time - Must check endianness issues * Initial work trying to implement RPATH support to ELF * Less flat command tree - 'dt' is now 'dbt' - 'dk' is now 'dpk' * Some more random syntax cleanup fixes * Say 'yes/no' instead of 'ok/fail' in check-langs script 2010-03-12 17:46:11 +00:00			`.Op Fl s Ar string`
Initial import of rahash2 '-S' seed and '-i' iterations 2013-11-02 10:49:32 +00:00			`.Op Fl i Ar iterations`
			`.Op Fl S Ar seed`
* Update manpages 2011-12-02 02:43:08 +00:00			`.Op Fl f Ar from`
			`.Op Fl t Ar to`
* Write and install manpages * Merge r_trace into r_debug (RDebugTrace) - Implement 'dt' command to manage debugging traces - TODO: Track register values and memory changes - Added dbg.trace and dbg.trace.tag * Added r_sys_now() to retrieve ut64 value of current time - Must check endianness issues * Initial work trying to implement RPATH support to ELF * Less flat command tree - 'dt' is now 'dbt' - 'dk' is now 'dpk' * Some more random syntax cleanup fixes * Say 'yes/no' instead of 'ok/fail' in check-langs script 2010-03-12 17:46:11 +00:00			`.Op [file] ...`
* Initial work on the register API for r_debug - r_debug_reg and r_debug_regset - Handles dbg->newstate to force register sync - Only dbg.reg.read() for x86-32 and 64 * Added dummy copy of manpages (from old radare1) 2009-04-15 11:09:36 +00:00			`.Sh DESCRIPTION`
			`This program is part of the radare project.`
			`.Pp`
			`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.`
			`.Pp`
			`You can hash big files by hashing each block and later determine what part of it has been modified. Useful for filesystem analysis.`
			`.Pp`
			`This command can be used to calculate hashes of a certain part of a file or a command line passed string.`
			`.Pp`
			`This is the command used by the '#' command of radare.`
			`.Bl -tag -width Fl`
			`.It Fl a Ar algo`
			`Select an algorithm for the hashing. Valid values are md5, crc32 and sha1`
Fix offset in randomart for rahash2 2013-02-12 01:55:22 +00:00			`.It Fl b Ar blocksize`
* Write and install manpages * Merge r_trace into r_debug (RDebugTrace) - Implement 'dt' command to manage debugging traces - TODO: Track register values and memory changes - Added dbg.trace and dbg.trace.tag * Added r_sys_now() to retrieve ut64 value of current time - Must check endianness issues * Initial work trying to implement RPATH support to ELF * Less flat command tree - 'dt' is now 'dbt' - 'dk' is now 'dpk' * Some more random syntax cleanup fixes * Say 'yes/no' instead of 'ok/fail' in check-langs script 2010-03-12 17:46:11 +00:00			`Define the block size`
Initial import of rahash2 '-S' seed and '-i' iterations 2013-11-02 10:49:32 +00:00			`.It Fl i Ar iters`
			`Apply the hash Iters times to itself+seed`
* Update manpages 2011-12-02 02:43:08 +00:00			`.It Fl B`
			`Show per-block hash`
Add randomart print mode (pk/pK commands and rahash2 -k) Random code cleanup Remove borders in webui/two 2013-02-12 01:42:34 +00:00			`.It Fl k`
			`Show result using OpenSSH's VisualHostKey randomart algorithm`
* Update manpages 2011-12-02 02:43:08 +00:00			`.It Fl s Ar string`
			`Hash this string instead of using the 'source' and 'hash-file' arguments.`
Initial import of rahash2 '-S' seed and '-i' iterations 2013-11-02 10:49:32 +00:00			`.It Fl S Ar [^]s:string\|hexstr`
			`Set seed to hash with, use ^to prefix seed, otherwise its suffixed.`
* Update manpages 2011-12-02 02:43:08 +00:00			`.It Fl f Ar from`
			`Start hashing at given address`
			`.It Fl t Ar to`
			`Stop hashing at given address`
			`.It Fl r`
			`Show output in radare commands`
			`.It Fl v`
			`Show version information`
* Initial work on the register API for r_debug - r_debug_reg and r_debug_regset - Handles dbg->newstate to force register sync - Only dbg.reg.read() for x86-32 and 64 * Added dummy copy of manpages (from old radare1) 2009-04-15 11:09:36 +00:00			`.It Fl h`
			`Show usage help message.`
			`.El`
			`.Sh SEE ALSO`
			`.Pp`
* Write and install manpages * Merge r_trace into r_debug (RDebugTrace) - Implement 'dt' command to manage debugging traces - TODO: Track register values and memory changes - Added dbg.trace and dbg.trace.tag * Added r_sys_now() to retrieve ut64 value of current time - Must check endianness issues * Initial work trying to implement RPATH support to ELF * Less flat command tree - 'dt' is now 'dbt' - 'dk' is now 'dpk' * Some more random syntax cleanup fixes * Say 'yes/no' instead of 'ok/fail' in check-langs script 2010-03-12 17:46:11 +00:00			`.Xr radare2(1) ,`
* Add rafind2.1 manpage * Many cleanups in the TODO files 2010-06-18 15:52:30 +00:00			`.Xr rafind2(1) ,`
* Write and install manpages * Merge r_trace into r_debug (RDebugTrace) - Implement 'dt' command to manage debugging traces - TODO: Track register values and memory changes - Added dbg.trace and dbg.trace.tag * Added r_sys_now() to retrieve ut64 value of current time - Must check endianness issues * Initial work trying to implement RPATH support to ELF * Less flat command tree - 'dt' is now 'dbt' - 'dk' is now 'dpk' * Some more random syntax cleanup fixes * Say 'yes/no' instead of 'ok/fail' in check-langs script 2010-03-12 17:46:11 +00:00			`.Xr rahash2(1) ,`
			`.Xr rabin2(1) ,`
			`.Xr radiff2(1) ,`
			`.Xr rasm2(1) ,`
* Fix make w32dist * Update manpages * Added r2 -H for env and files help * Add rarun2 -h * Show assembler/disassembler features in rasm2 -L * Add opcode 'mov dword [ebp-12],4' to x86.nz - Make t/test.nz work with x86.olly (32bit only atm) * Fix unknown os issue with tiny-pe files in r_bin * Fix some plugin names build fails in mingw32 * MAGICPATH renamed to R_MAGIC_PATH * Add another experimental way to generate gir files - Added dummy test.js for nodejs * Build python-dist in farm --HG-- rename : man/rarc2-tool.1 => binr/old.rarc2/rarc2-tool.1 rename : man/rarc2.1 => binr/old.rarc2/rarc2.1 2011-10-12 01:24:19 +00:00			`.Xr ragg2(1) ,`
			`.Xr rarun2(1) ,`
* Rename r2rc to rarc2 - Moved into binr/rarc2 - Integrated with symstall - rarc2-tool now support -xc and -cx combo - Add rarc2.1 manpage * Add some bugs to review in TODO --HG-- rename : r2rc/Makefile => binr/rarc2/Makefile rename : r2rc/README => binr/rarc2/README rename : r2rc/TODO => binr/rarc2/TODO rename : r2rc/emit_arm.c => binr/rarc2/emit_arm.c rename : r2rc/emit_x64.c => binr/rarc2/emit_x64.c rename : r2rc/emit_x86.c => binr/rarc2/emit_x86.c rename : r2rc/i/libc.r => binr/rarc2/i/libc.r rename : r2rc/i/socket.r => binr/rarc2/i/socket.r rename : r2rc/out.c => binr/rarc2/out.c rename : r2rc/r2rc-tool => binr/rarc2/rarc2-tool rename : r2rc/r2rc.c => binr/rarc2/rarc2.c rename : r2rc/rcc.h => binr/rarc2/rarc2.h rename : r2rc/t/Makefile => binr/rarc2/t/Makefile rename : r2rc/t/argv.r => binr/rarc2/t/argv.r rename : r2rc/t/bytedump.r => binr/rarc2/t/bytedump.r rename : r2rc/t/data.r => binr/rarc2/t/data.r rename : r2rc/t/dump.r => binr/rarc2/t/dump.r rename : r2rc/t/hello.r => binr/rarc2/t/hello.r rename : r2rc/t/if.r => binr/rarc2/t/if.r rename : r2rc/t/inline.r => binr/rarc2/t/inline.r rename : r2rc/t/input.r => binr/rarc2/t/input.r rename : r2rc/t/loop.r => binr/rarc2/t/loop.r rename : r2rc/t/ptr.r => binr/rarc2/t/ptr.r rename : r2rc/t/rawsys.r => binr/rarc2/t/rawsys.r rename : r2rc/t/rawsys64.r => binr/rarc2/t/rawsys64.r rename : r2rc/t/regs.r => binr/rarc2/t/regs.r rename : r2rc/t/ret.r => binr/rarc2/t/ret.r rename : r2rc/t/room.r => binr/rarc2/t/room.r rename : r2rc/t/segfault.r => binr/rarc2/t/segfault.r rename : r2rc/t/shell.r => binr/rarc2/t/shell.r rename : r2rc/t/sub.r => binr/rarc2/t/sub.r rename : r2rc/t/syscall.r => binr/rarc2/t/syscall.r rename : r2rc/test.r => binr/rarc2/test.r 2010-06-28 18:30:20 +00:00			`.Xr rax2(1) ,`
* Initial work on the register API for r_debug - r_debug_reg and r_debug_regset - Handles dbg->newstate to force register sync - Only dbg.reg.read() for x86-32 and 64 * Added dummy copy of manpages (from old radare1) 2009-04-15 11:09:36 +00:00			`.Sh AUTHORS`
			`.Pp`
Use latest ACR for triplet fixes and update manpage dates 2013-11-11 11:00:39 +00:00			`pancake <pancake@nopcode.org>`