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memfrob(3) [xfree86 man page]

MEMFROB(3)						     Linux Programmer's Manual							MEMFROB(3)

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 suitable only for hiding strings. RETURN VALUE
The memfrob() function returns a pointer to the encrypted memory area. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+---------+ |Interface | Attribute | Value | +----------+---------------+---------+ |memfrob() | Thread safety | MT-Safe | +----------+---------------+---------+ CONFORMING TO
The memfrob() function is unique to the GNU C Library. SEE ALSO
bstring(3), strfry(3) COLOPHON
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)

Check Out this Related Man Page

STRFRY(3)						     Linux Programmer's Manual							 STRFRY(3)

NAME
strfry - randomize a string SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <string.h> char *strfry(char *string); DESCRIPTION
The strfry() function randomizes the contents of string by using rand(3) to randomly swap characters in the string. The result is an ana- gram of string. RETURN VALUE
The strfry() functions returns a pointer to the randomized string. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+---------+ |Interface | Attribute | Value | +----------+---------------+---------+ |strfry() | Thread safety | MT-Safe | +----------+---------------+---------+ CONFORMING TO
The strfry() function is unique to the GNU C Library. SEE ALSO
memfrob(3), string(3) COLOPHON
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
2015-03-02 STRFRY(3)
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