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MEMFROB
Section: Linux Programmer's Manual (3)
Updated: 2010-09-10
Index
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NAME
memfrob - frobnicate (encrypt) a memory area
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *memfrob(void *s, size_t n);
DESCRIPTION
The
memfrob()
function encrypts the first n bytes of the
memory area s by exclusive-ORing each character with the number
42.
The effect can be reversed by using
memfrob()
on the
encrypted memory area.
Note that this function is not a proper encryption routine as the XOR
constant is fixed, and is only suitable for hiding strings.
RETURN VALUE
The
memfrob()
function returns a pointer to the encrypted memory
area.
CONFORMING TO
The
memfrob()
function is unique to the
GNU C Library.
SEE ALSO
strfry(3)
COLOPHON
This page is part of release 3.27 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- CONFORMING TO
-
- SEE ALSO
-
- COLOPHON
-
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