From e1624aa020d0cda9e58708ddfff4caa703007b68 Mon Sep 17 00:00:00 2001
From: bg <bg@b1d182e4-1ff8-0310-901f-bddb46175740>
Date: Sat, 12 Apr 2008 16:31:20 +0000
Subject: [PATCH] noekeon extended

---
 noekeon.mk    |  9 +++--
 noekeon_asm.S | 95 +++++++++++++++++++++++++--------------------------
 2 files changed, 51 insertions(+), 53 deletions(-)

diff --git a/noekeon.mk b/noekeon.mk
index 901c7fc..3f1a313 100644
--- a/noekeon.mk
+++ b/noekeon.mk
@@ -5,11 +5,10 @@ ALGO_NAME := NOEKEON
 BLOCK_CIPHERS += $(ALGO_NAME)
 
 
-$(ALGO_NAME)_OBJ      := noekeon_asmC.o noekeon_asm.o
-#$(ALGO_NAME)_OBJ      := noekeon.o
+$(ALGO_NAME)_OBJ      := noekeon_asm.o
 $(ALGO_NAME)_TEST_BIN := main-noekeon-test.o debug.o uart.o serial-tools.o \
-                         noekeon_asmC.o noekeon_asm.o nessie_bc_test.o \
+                         noekeon_asm.o nessie_bc_test.o \
                          nessie_common.o cli.o performance_test.o
-$(ALGO_NAME)_NESSIE_TEST      := "nessie"
-$(ALGO_NAME)_PEROFRMANCE_TEST := "performance"
+$(ALGO_NAME)_NESSIE_TEST      := test nessie
+$(ALGO_NAME)_PEROFRMANCE_TEST := performance
 
diff --git a/noekeon_asm.S b/noekeon_asm.S
index f3f904d..43ffa93 100644
--- a/noekeon_asm.S
+++ b/noekeon_asm.S
@@ -574,61 +574,60 @@ pi:
 	mov state3_2, r24
 	mov state3_3, r25
 	ret
-	
-;------- trash follows --------
-
 
+/******************************************************************************/
+	
+/*
+void noekeon_init(void* key, noekeon_ctx_t* ctx){
+	uint8_t nullv[16];
+	
+	memset(nullv, 0, 16);
+	memcpy(ctx, key, 16);
+	noekeon_enc(ctx, nullv);
+}
+*/
+.global noekeon_init
+noekeon_init:
+; === noekeon_init ===
+;
+;  param1: pointer to key (r24,r25)
+;  param2: pointer to context  (r22,r23) 
+;
+	in r30, _SFR_IO_ADDR(SPL)
+	in r31, _SFR_IO_ADDR(SPH)
+	sbiw r30, 16 
+	out  _SFR_IO_ADDR(SPH), r31
+	out  _SFR_IO_ADDR(SPL), r30
 
-	/* load state */
 	movw r26, r22
-	ldi r28, 2
-	clr r29	/* Y points at r2 aka state0_0 */
-	ldi r22, 16	
-1:	/* copy key to state */
-	ld r0, X+
-	st Y+, r0
-	dec r22
-	brne 1b
-
-	movw r26, r30
-	
-	clr r1
-	ldi r22, 16
-1:	/* set key to zero */
-	st Z+, r1
-	dec r22
+	adiw r30, 1
+	movw r22, r30
+	/* set nullv(stack) to zero */
+	ldi r20, 16
+1:	st Z+, r1
+	dec r20
 	brne 1b
-		
-	call theta
 
-	ldi r22, 16
-1:	/* write key back */	
-	ld r0, -Y
-	st -Z, r0
-	dec r22
+	/* copy key data to ctx */
+	movw r30, r24
+	ldi r20, 16
+1:	ld r1, Z+
+	st X+, r1
+	dec r20
 	brne 1b
-
-; 	movw r26, r30 /* move keypointer to X */
-;	adiw r26, 1
-	movw r30, r24 /* Z points at state */
-	push r30 /* push state pointer */
-	push r31
+	clr r1
+	
+	sbiw r26, 16
+	movw r24, r26
+	call noekeon_enc
+	
+	in r30, _SFR_IO_ADDR(SPL)
+	in r31, _SFR_IO_ADDR(SPH)
+	adiw r30, 16 
+	out  _SFR_IO_ADDR(SPH), r31
+	out  _SFR_IO_ADDR(SPL), r30	
+	ret
 	
-	;--
-	clr r29
-	ldi r28, 2
-	;--
-	ldi r22, 16
-	push r22 /* 16 is also the number of rounds and gets pushed here */
-	ldi r22, 16
-1:	/* load state */
-	ld r0, Z+
-	st Y+, r0
-	dec r22
-	brne 1b
-	/* state loaded */
-
 
-;------- ------------- --------
 
 
-- 
2.39.5