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DECRYPTCORE(8)		     System Manager's Manual		  DECRYPTCORE(8)

NAME
     decryptcore -- decrypt a core dump of the operating system

SYNOPSIS
     decryptcore [-fLv] -p privatekeyfile -k keyfile -e encryptedcore -c core
     decryptcore [-fLv] [-d crashdir] -p privatekeyfile -n dumpnr

DESCRIPTION
     The  decryptcore  utility	first  decrypts keyfile using privatekeyfile and
     then uses the resulting key to decrypt encryptedcore saved by  savecore(8).
     The result is saved in core.

     Alternatively  a  user  can  decrypt  a  core dump numbered dumpnr from the
     crashdir directory.  In this case a dump key from the key.#  file	is  used
     and  the  result  is  saved  in  the vmcore.# file where "#" corresponds to
     dumpnr.

     By default decryptcore does not overwrite an old core dump as a user  might
     want  to  store the core somewhere else for the future.  This behaviour can
     be changed using the -f flag.

     The decryptcore utility can be started with the following command line  ar-
     guments:

     -f 	       Remove a decryped core dump if it already exists.

     -L 	       Write log messages to syslogd(8).

     -v 	       Print  or log verbose/debugging information.  This option
		       can be specified multiple times to  raise  the  verbosity
		       level.

     -p privatekeyfile
		       Specify location of a private key file which will be used
		       to decrypt a dump key file.

     -k keyfile        Specify location of a dump key file.

     -e encryptedcore  Specify location of an encrypted core.

     -c core	       Specify location of a resulting decrypted core dump.

     -d crashdir       Specify an alternative crash dump directory.  The default
		       crash dump directory is /var/crash.

     -n dumpnr	       Specify a number of a crash dump to be decrypted.

EXIT STATUS
     The decryptcore utility exits 0 on success, and >0 if an error occurs.

SEE ALSO
     kgdb(1)(ports/devel/gdb), capsicum(4), dumpon(8), savecore(8), syslogd(8)

AUTHORS
     The    decryptcore   utility   was   implemented	by   Konrad   Witaszczyk
     <def@FreeBSD.org>.

FreeBSD ports 15.1		January 29, 2018		  DECRYPTCORE(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=decryptcore&sektion=8&manpath=FreeBSD+15.1-RELEASE+and+Ports>

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