Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
DECRYPTCORE(8)		  BSD 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 behav-
     iour can be changed using the -f flag.

     The decryptcore utility can be started with the following command line
     arguments:

     -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 op-
		       tion can	be specified multiple times to raise the ver-
		       bosity 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 de-
		       fault 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), capsicum(4), dumpon(8), savecore(8), syslogd(8)

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

BSD			       January 29, 2018				   BSD

NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | SEE ALSO | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=decryptcore&manpath=FreeBSD+12.0-RELEASE+and+Ports>

home | help