NAME

     ewfverify — verifies media data stored in EWF files

SYNOPSIS

     ewfverify [-A codepage] [-d digest_type] [-f format] [-l log_filename]
               [-p process_buffer_size] [-hqvVwx] ewf_files

DESCRIPTION

     ewfverify is a utility to verify media data stored in EWF files.

     ewfverify is part of the libewf package.  libewf is a library to access the Expert Witness
     Compression Format (EWF).

     ewf_files the first or the entire set of EWF segment files

     The options are as follows:

     -A codepage
             the codepage of header section, options: ascii (default), windows-874, windows-932,
             windows-936, windows-949, windows-950, windows-1250, windows-1251, windows-1252,
             windows-1253, windows-1254, windows-1255, windows-1256, windows-1257 or windows-1258

     -d digest_type
             calculate additional digest (hash) types besides md5, options: sha1, sha256

     -f format
             specify the input format, options: raw (default), files (restricted to logical
             volume files)

     -h      shows this help

     -l log_filename
             logs verification errors and the digest (hash) to the log filename

     -p process_buffer_size
             the process buffer size (default is the chunk size)

     -q      quiet shows minimal status information

     -v      verbose output to stderr

     -V      print version

     -w      zero sectors on checksum error (mimic EnCase like behavior)

     -x      use the chunk data instead of the buffered read and write functions.

ENVIRONMENT

     None

FILES

     None

EXAMPLES

     ewfverify can either verify the raw storage media data or logical file data stored in EWF
     file(s).

   To verify the raw storage media data:
     # ewfverify floppy.E01
     ewfverify 20110801

     Verify started at: Tue Jan 11 19:21:51 2011

     This could take a while.

     Status: at 2%.
             verified 32 kB (32768 bytes) of total 1.4 MiB (1474560 bytes).

           ...

     Status: at 100%.
             verified 1.4 MiB (1474560 bytes) of total 1.4 MiB (1474560 bytes).
             completion in 1 second(s) with 1 MiB/s (1474560 bytes/second).

     Verify completed at: Tue Jan 11 19:21:52 2011

     Read: 1.4 MiB (1474560 bytes) in 1 second(s) with 1 MiB/s (1474560 bytes/second).

     MD5 hash stored in file:      ae1ce8f5ac079d3ee93f97fe3792bda3
     MD5 hash calculated over data:          ae1ce8f5ac079d3ee93f97fe3792bda3

     ewfverify: SUCCESS

   To verify logical file data:
     # ewfverify -f files logical.E01
     ewfverify 20110111

     Verify started at: Tue Jan 11 19:21:51 2011

     Single file: file1.txt
     MD5 hash stored in file:                6fef2a64afbf070a264366183698bb5e
     MD5 hash calculated over data:          6fef2a64afbf070a264366183698bb5e

           ...

     Verify completed at: Tue Jan 11 19:21:52 2011

     ewfverify: SUCCESS

DIAGNOSTICS

     Errors, verbose and debug output are printed to stderr when verbose output -v is enabled.
     Verbose and debug output are only printed when enabled at compilation.

BUGS

     Please report bugs of any kind to <joachim.metz@gmail.com> or on the project website:
     http://code.google.com/p/libewf/

AUTHOR

     These man pages were written by Kees Mastwijk.

     Alterations for distribution have been made by Joachim Metz.

COPYRIGHT

     Copyright 2006-2014, Joachim Metz <joachim.metz@gmail.com>.

     This is free software; see the source for copying conditions. There is NO warranty; not even
     for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

     ewfacquire(1), ewfacquirestream(1), ewfexport(1), ewfinfo(1), ewfmount(1), ewfrecover(1)