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rc4: mark key as const 

Key data is never written so the parameter can be const, which allows
putting fixed keys in .rodata.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
John Keeping 2022-11-18 16:13:17 +00:00 committed by Kever Yang
parent ccaa55fb6e
commit 93a6e60e49
2 changed files with 2 additions and 2 deletions
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2
include/rc4.h
View File

@ -15,6 +15,6 @@
* @len: Length of buffer in bytes
* @key: 16-byte key to use
*/
void rc4_encode(unsigned char *buf, unsigned int len, unsigned char key[16]);
void rc4_encode(unsigned char *buf, unsigned int len, const unsigned char key[16]);
#endif

2
lib/rc4.c
View File

@ -12,7 +12,7 @@
#endif
#include <rc4.h>
void rc4_encode(unsigned char *buf, unsigned int len, unsigned char key[16])
void rc4_encode(unsigned char *buf, unsigned int len, const unsigned char key[16])
{
unsigned char s[256], k[256], temp;
unsigned short i, j, t;