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avr-crypto-lib
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skipjack testvectors seem broken

This commit is contained in:
bg 2008-07-09 07:00:42 +00:00
parent 91bece1f78
commit f6e331f765
1 changed files with 12 additions and 4 deletions
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16
skipjack.c
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@ -30,6 +30,14 @@
#include <avr/io.h>
#include <avr/pgmspace.h>
#define SKIPJACK_CNT_BIG
#ifdef SKIPJACK_CNT_BIG
#define SKIPJACK_CNT_SHIFT <<8
#else
#define SKIPJACK_CNT_SHIFT
#endif
/*****************************************************************************/
uint8_t skipjack_ftable[] PROGMEM ={
@ -102,7 +110,7 @@ void skipjack_a(uint16_t* w, uint8_t k, uint8_t* key){
w[3] = w[2];
w[2] = w[1];
w[1] = skipjack_g(w[0],k-1,key);
w[0] = t ^ w[1] ^ k<<8;
w[0] = t ^ w[1] ^ (((uint16_t)k)SKIPJACK_CNT_SHIFT);
}
/*****************************************************************************/
@ -113,7 +121,7 @@ void skipjack_a_inv(uint16_t* w, uint8_t k, uint8_t* key){
w[0] = skipjack_g_inv(w[1],k-1,key);
w[1] = w[2];
w[2] = w[3];
w[3] = t ^ k<<8;
w[3] = t ^ (((uint16_t)k)SKIPJACK_CNT_SHIFT);
}
/*****************************************************************************/
@ -123,7 +131,7 @@ void skipjack_b(uint16_t* w, uint8_t k, uint8_t* key){
t = w[0];
w[0] = w[3];
w[3] = w[2];
w[2] = t ^ k<<8 ^ w[1];
w[2] = t ^ (((uint16_t)k)SKIPJACK_CNT_SHIFT) ^ w[1];
w[1] = skipjack_g(t,k-1,key);
}
@ -135,7 +143,7 @@ void skipjack_b_inv(uint16_t* w, uint8_t k, uint8_t* key){
w[2] = w[3];
w[3] = w[0];
w[0] = skipjack_g_inv(w[1],k-1,key);
w[1] = w[0] ^ t ^ k<<8;
w[1] = w[0] ^ t ^ (((uint16_t)k)SKIPJACK_CNT_SHIFT);
}
/*****************************************************************************/