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/* skeinwrap.c
*
* Wrappers for standard skein operations for the eKey
*
* Copyright 2009 Simtec Electronics
*
* For licence terms refer to the COPYING file.
*/
#include "skeinwrap.h"
static unsigned char keybuf[44]; /* 12 bytes serial, 32 bytes secret */
void
PrepareSkein(EKeySkein *skein,
const unsigned char *serial,
const unsigned char *secret,
const char *personalisation)
{
int i;
for (i = 0; i < 12; ++i) keybuf[i] = serial[i];
for (i = 0; i < 32; ++i) keybuf[i + 12] = secret[i];
Skein_256_InitExt(skein, 256, SKEIN_CFG_TREE_INFO_SEQUENTIAL,
keybuf, 44);
Skein_Start_New_Type(skein, PERS);
Skein_256_Update(skein, (unsigned char *)personalisation, 96);
Skein_Start_New_Type(skein, MSG);
}
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