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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
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MEMFROB(3) Linux Programmer's Manual MEMFROB(3)
memfrob - frobnicate (encrypt) a memory area
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *memfrob(void *s, size_t n);
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 suitable only for hiding strings.
The memfrob() function returns a pointer to the encrypted memory
area.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────┼───────────────┼─────────┤
│memfrob() │ Thread safety │ MT-Safe │
└──────────┴───────────────┴─────────┘
The memfrob() function is unique to the GNU C Library.
bstring(3), strfry(3)
This page is part of release 4.15 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
GNU 2017-03-13 MEMFROB(3)
Pages that refer to this page: bstring(3), strfry(3)
Copyright and license for this manual page
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