NAME¶

ewfverify — verifies media data stored in EWF files

SYNOPSIS¶

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 digest (hash) types, options: md5, sha1, sha256. By default ewfverify will calculate the digest (hash) types that are stored in the EWF segment files or MD5 if none.

-f format

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

-h

shows this help

-j jobs

the number of concurrent processing jobs (threads), where a number of 0 represents single-threaded mode (default is 4 if multi-threaded mode is supported).

-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 data chunk functions 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).

# 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).

# 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

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: https://github.com/libyal/libewf/

AUTHOR¶

These man pages were written by Kees Mastwijk.

Alterations for distribution have been made by Joachim Metz.

COPYRIGHT¶

Copyright (C) 2006-2024, 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)