ewfverify() LOCAL ewfverify()
NAME
ewfverify — verifies media data stored in EWF files
SYNOPSIS
ewfverify [−A codepage] [−d digest_type] [−f format] [−j jobs] [−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 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).
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 <[email protected]> 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) 2006-2023, Joachim Metz <[email protected]>.
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) libewf November 16, 2021 ewfverify()