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Set the key used in encryption
#include <stdlib.h>
void setkey( const char *__key );
- __key
- A 64-character array of binary values (numeric 0 or 1).
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
|
This function is in libc.a, but not in libc.so
(in order to save space). |
The setkey() function allows
limited access to the NBS Data Encryption Standard (DES) algorithm itself.
It derives a 56-bit key from the given __key by dividing the
array into groups of 8 and ignoring the last bit in each group.
POSIX 1003.1 XSI
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
crypt(),
encrypt()
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