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Man Pages
ewfverify LOCAL ewfverify

verifies media data stored in EWF files

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

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:
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
calculate additional digest (hash) types besides md5, options: sha1, sha256
specify the input format, options: raw (default), files (restricted to logical volume files)
shows this help
logs verification errors and the digest (hash) to the log filename
the process buffer size (default is the chunk size)
quiet shows minimal status information
verbose output to stderr
print version
zero sectors on checksum error (mimic EnCase like behavior)
use the chunk data instead of the buffered read and write functions.



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). 

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

# 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

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.

Please report bugs of any kind to <> or on the project website:

These man pages were written by Kees Mastwijk.
Alterations for distribution have been made by Joachim Metz.

Copyright 2006-2014, Joachim Metz <>.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

ewfacquire(1), ewfacquirestream(1), ewfexport(1), ewfinfo(1), ewfmount(1), ewfrecover(1)
January 19, 2014 libewf

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