Linux 2.6 - man page for memfrob (linux section 3)
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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) */
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.
The memfrob() function is unique to the GNU C Library.
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GNU 2010-09-10 MEMFROB(3)
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