forgotten files

[avr-crypto-lib.git] / seed_C.c

diff --git a/seed_C.c b/seed_C.c
index 2f9b8d0a196bd243ac14aa2d882310ef43184999..7a9afc03bc18860c093543c485fa6db79c1180f3 100644 (file)
--- a/seed_C.c
+++ b/seed_C.c
@@ -1,6 +1,6 @@
 /* seed_C.c */
 /*
-    This file is part of the Crypto-avr-lib/microcrypt-lib.
+    This file is part of the AVR-Crypto-Lib.
     Copyright (C) 2008  Daniel Otte (daniel.otte@rub.de)
 
     This program is free software: you can redistribute it and/or modify
@@ -29,7 +29,7 @@
 #include <avr/pgmspace.h>
 #include <string.h>
 #include "seed_sbox.h"
-#include "uart.h"
+#include "cli.h"
 #include "debug.h"
 
 
@@ -91,13 +91,13 @@ uint64_t bigendian_rotr8_64(uint64_t a){
 
 /******************************************************************************/
 static
-uint64_t f_function(uint64_t a, uint32_t k0, uint32_t k1){
+uint64_t f_function(const uint64_t* a, uint32_t k0, uint32_t k1){
        uint32_t c,d;
 
-       c = a & 0x00000000FFFFFFFFLL;
-       d = (a>>32) & 0x00000000FFFFFFFFLL;
+       c = *a & 0x00000000FFFFFFFFLL;
+       d = (*a>>32) & 0x00000000FFFFFFFFLL;
        
-       c ^= k0;        d ^= k1;
+       c ^= k0; d ^= k1;
        d ^= c;
        d = g_function(d);
        c = bigendian_sum32(c,d);
@@ -105,8 +105,7 @@ uint64_t f_function(uint64_t a, uint32_t k0, uint32_t k1){
        d = bigendian_sum32(c,d);
        d = g_function(d);
        c = bigendian_sum32(c,d);
-       a = ((uint64_t)d << 32) | c;
-       return a;
+       return ((uint64_t)d << 32) | c;
 }
 
 /******************************************************************************/
@@ -207,7 +206,7 @@ typedef struct{
 
 /******************************************************************************/
 
-void seed_init(uint8_t * key, seed_ctx_t * ctx){
+void seed_init(const void * key, seed_ctx_t * ctx){
        memcpy(ctx->k, key, 128/8);
 }
 
@@ -216,27 +215,27 @@ void seed_init(uint8_t * key, seed_ctx_t * ctx){
 #define L (((uint64_t*)buffer)[0])
 #define R (((uint64_t*)buffer)[1])
 
-void seed_enc(void * buffer, seed_ctx_t * ctx){
+void seed_enc(void * buffer, const seed_ctx_t * ctx){
        uint8_t r;
        keypair_t k;
        for(r=0; r<8; ++r){
-                       k = getnextkeys(ctx->k, 2*r);
+                       k = getnextkeys(((seed_ctx_t*)ctx)->k, 2*r);
 /*
-       DEBUG_S("\r\n\tDBG ka,0: "); uart_hexdump(&k.k0, 4);
-       DEBUG_S("\r\n\tDBG ka,1: "); uart_hexdump(&k.k1, 4);
-       DEBUG_S("\r\n\t DBG L: "); uart_hexdump((uint8_t*)buffer+0, 8);
-       DEBUG_S("\r\n\t DBG R: "); uart_hexdump((uint8_t*)buffer+8, 8);
+       DEBUG_S("\r\n\tDBG ka,0: "); cli_hexdump(&k.k0, 4);
+       DEBUG_S("\r\n\tDBG ka,1: "); cli_hexdump(&k.k1, 4);
+       DEBUG_S("\r\n\t DBG L: "); cli_hexdump((uint8_t*)buffer+0, 8);
+       DEBUG_S("\r\n\t DBG R: "); cli_hexdump((uint8_t*)buffer+8, 8);
 */
-                       L ^= f_function(R,k.k0,k.k1);
+                       L ^= f_function(&R,k.k0,k.k1);
                        
-                       k = getnextkeys(ctx->k, 2*r+1);
+                       k = getnextkeys(((seed_ctx_t*)ctx)->k, 2*r+1);
 /*
-       DEBUG_S("\r\n\tDBG kb,0: "); uart_hexdump(&k.k0, 4);
-       DEBUG_S("\r\n\tDBG kb,1: "); uart_hexdump(&k.k1, 4);
-       DEBUG_S("\r\n\t DBG L: "); uart_hexdump((uint8_t*)buffer+8, 8);
-       DEBUG_S("\r\n\t DBG R: "); uart_hexdump((uint8_t*)buffer+0, 8);
+       DEBUG_S("\r\n\tDBG kb,0: "); cli_hexdump(&k.k0, 4);
+       DEBUG_S("\r\n\tDBG kb,1: "); cli_hexdump(&k.k1, 4);
+       DEBUG_S("\r\n\t DBG L: "); cli_hexdump((uint8_t*)buffer+8, 8);
+       DEBUG_S("\r\n\t DBG R: "); cli_hexdump((uint8_t*)buffer+0, 8);
 */
-                       R ^= f_function(L,k.k0,k.k1);
+                       R ^= f_function(&L,k.k0,k.k1);
        }
        /* just an exchange without temp. variable */
        L ^= R;
@@ -253,23 +252,23 @@ void seed_dec(void * buffer, seed_ctx_t * ctx){
        int8_t r;
        keypair_t k;
        for(r=7; r>=0; --r){
-                       k = getprevkeys(ctx->k, 2*r+1);
+                       k = getprevkeys(((seed_ctx_t*)ctx)->k, 2*r+1);
 /*
-       DEBUG_S("\r\n\tDBG ka,0: "); uart_hexdump(&k.k0, 4);
-       DEBUG_S("\r\n\tDBG ka,1: "); uart_hexdump(&k.k1, 4);
-       DEBUG_S("\r\n\t DBG L: "); uart_hexdump((uint8_t*)buffer+0, 8);
-       DEBUG_S("\r\n\t DBG R: "); uart_hexdump((uint8_t*)buffer+8, 8);
+       DEBUG_S("\r\n\tDBG ka,0: "); cli_hexdump(&k.k0, 4);
+       DEBUG_S("\r\n\tDBG ka,1: "); cli_hexdump(&k.k1, 4);
+       DEBUG_S("\r\n\t DBG L: "); cli_hexdump((uint8_t*)buffer+0, 8);
+       DEBUG_S("\r\n\t DBG R: "); cli_hexdump((uint8_t*)buffer+8, 8);
 */
-                       L ^= f_function(R,k.k0,k.k1);
+                       L ^= f_function(&R,k.k0,k.k1);
                        
-                       k = getprevkeys(ctx->k, 2*r+0);
+                       k = getprevkeys(((seed_ctx_t*)ctx)->k, 2*r+0);
 /*
-       DEBUG_S("\r\n\tDBG kb,0: "); uart_hexdump(&k.k0, 4);
-       DEBUG_S("\r\n\tDBG kb,1: "); uart_hexdump(&k.k1, 4);
-       DEBUG_S("\r\n\t DBG L: "); uart_hexdump((uint8_t*)buffer+8, 8);
-       DEBUG_S("\r\n\t DBG R: "); uart_hexdump((uint8_t*)buffer+0, 8);
+       DEBUG_S("\r\n\tDBG kb,0: "); cli_hexdump(&k.k0, 4);
+       DEBUG_S("\r\n\tDBG kb,1: "); cli_hexdump(&k.k1, 4);
+       DEBUG_S("\r\n\t DBG L: "); cli_hexdump((uint8_t*)buffer+8, 8);
+       DEBUG_S("\r\n\t DBG R: "); cli_hexdump((uint8_t*)buffer+0, 8);
 */
-                       R ^= f_function(L,k.k0,k.k1);
+                       R ^= f_function(&L,k.k0,k.k1);
        }
        /* just an exchange without temp. variable */
        L ^= R;