X-Git-Url: https://git.cryptolib.org/?p=avr-crypto-lib.git;a=blobdiff_plain;f=bmw%2Fbmw_large.c;h=d247273efb2b9a89e905a5bcbc476040b5971f99;hp=719b5859c0199c154a2cc4a861f0a5be1ad00091;hb=eb0cafe05ab4cdf60878dbd81e4ff3712d5150f2;hpb=709c6948180356089680fd243927b22133ba64d0

diff --git a/bmw/bmw_large.c b/bmw/bmw_large.c
index 719b585..d247273 100644
--- a/bmw/bmw_large.c
+++ b/bmw/bmw_large.c
@@ -43,7 +43,7 @@
 #if DEBUG
  #include "cli.h"
 
- void ctx_dump(const bmw_large_ctx_t* ctx){
+ void ctx_dump(const bmw_large_ctx_t *ctx){
  	uint8_t i;
 	cli_putstr_P(PSTR("\r\n==== ctx dump ===="));
 	for(i=0; i<16;++i){
@@ -56,7 +56,7 @@
 	cli_hexdump(&(ctx->counter), 4);
  }
 
- void dump_x(const uint64_t* q, uint8_t elements, char x){
+ void dump_x(const uint64_t *q, uint8_t elements, char x){
 	uint8_t i;
  	cli_putstr_P(PSTR("\r\n==== "));
 	cli_putc(x);
@@ -203,7 +203,7 @@ uint64_t bmw_large_r7(uint64_t x){
 #define K    0x0555555555555555LL
 #define MASK 0xFFFFFFFFFFFFFFFFLL
 static
-uint64_t k_lut[] PROGMEM = {
+const uint64_t k_lut[] PROGMEM = {
 	16LL*K, 17LL*K, 18LL*K, 19LL*K,
 	20LL*K, 21LL*K, 22LL*K, 23LL*K,
 	24LL*K, 25LL*K, 26LL*K, 27LL*K,
@@ -211,7 +211,7 @@ uint64_t k_lut[] PROGMEM = {
 */
 /* the same as above but precomputed to avoid compiler warnings */
 static
-uint64_t k_lut[] PROGMEM = {
+const uint64_t k_lut[] PROGMEM = {
 	0x5555555555555550LL, 0x5aaaaaaaaaaaaaa5LL, 0x5ffffffffffffffaLL,
 	0x655555555555554fLL, 0x6aaaaaaaaaaaaaa4LL, 0x6ffffffffffffff9LL,
 	0x755555555555554eLL, 0x7aaaaaaaaaaaaaa3LL, 0x7ffffffffffffff8LL,
@@ -220,7 +220,7 @@ uint64_t k_lut[] PROGMEM = {
 	0xa55555555555554bLL };
 
 static
-uint64_t bmw_large_expand1(uint8_t j, const uint64_t* q, const void* m, const void* h){
+uint64_t bmw_large_expand1(uint8_t j, const uint64_t *q, const void *m, const void *h){
 	uint64_t(*s[])(uint64_t) = {bmw_large_s1, bmw_large_s2, bmw_large_s3, bmw_large_s0};
 	uint64_t a = 0;
 	union{
@@ -250,7 +250,7 @@ uint64_t bmw_large_expand1(uint8_t j, const uint64_t* q, const void* m, const vo
 }
 
 static
-uint64_t bmw_large_expand2(uint8_t j, const uint64_t* q, const void* m, const void* h){
+uint64_t bmw_large_expand2(uint8_t j, const uint64_t *q, const void *m, const void *h){
 	uint64_t(*rf[])(uint64_t) = {bmw_large_r1, bmw_large_r2, bmw_large_r3,
 	                             bmw_large_r4, bmw_large_r5, bmw_large_r6,
 							     bmw_large_r7};
@@ -308,12 +308,12 @@ uint64_t bmw_large_expand2(uint8_t j, const uint64_t* q, const void* m, const vo
 
 #if F0_HACK==2
 /* to understand this implementation take a look at f0-opt-table.txt */
-static uint16_t hack_table[5] PROGMEM = { 0x0311, 0xDDB3, 0x2A79, 0x07AA, 0x51C2 };
-static uint8_t  offset_table[5] PROGMEM = { 4+16, 6+16, 9+16, 12+16, 13+16 };
+static const uint16_t hack_table[5] PROGMEM = { 0x0311, 0xDDB3, 0x2A79, 0x07AA, 0x51C2 };
+static const uint8_t  offset_table[5] PROGMEM = { 4+16, 6+16, 9+16, 12+16, 13+16 };
 
 
 static
-void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
+void bmw_large_f0(uint64_t *q, const uint64_t *h, const void *m){
 	uint16_t hack_reg;
 	uint8_t i,j,c;
 	uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
@@ -355,7 +355,7 @@ void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
 
 #if F0_HACK==1
 static
-uint8_t f0_lut[] PROGMEM ={
+const uint8_t f0_lut[] PROGMEM ={
 	 5<<1, ( 7<<1)+1, (10<<1)+0, (13<<1)+0, (14<<1)+0,
 	 6<<1, ( 8<<1)+1, (11<<1)+0, (14<<1)+0, (15<<1)+1,
 	 0<<1, ( 7<<1)+0, ( 9<<1)+0, (12<<1)+1, (15<<1)+0,
@@ -375,7 +375,7 @@ uint8_t f0_lut[] PROGMEM ={
 };
 
 static
-void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
+void bmw_large_f0(uint64_t *q, const uint64_t *h, const void *m){
 	uint8_t i,j=-1,v,sign,l=0;
 	uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
 	                           bmw_large_s3, bmw_large_s4 };
@@ -417,7 +417,7 @@ void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
 
 #if F0_HACK==0
 static
-void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
+void bmw_large_f0(uint64_t *q, const uint64_t *h, const void *m){
 	uint8_t i;
 	uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
 	                           bmw_large_s3, bmw_large_s4 };
@@ -458,7 +458,7 @@ void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
 #endif /* F0_HACK==0 */
 
 static
-void bmw_large_f1(uint64_t* q, const void* m, const uint64_t* h){
+void bmw_large_f1(uint64_t *q, const void *m, const uint64_t *h){
 	uint8_t i;
 	q[16] = bmw_large_expand1(0, q, m, h);
 	q[17] = bmw_large_expand1(1, q, m, h);
@@ -468,7 +468,7 @@ void bmw_large_f1(uint64_t* q, const void* m, const uint64_t* h){
 }
 
 static
-void bmw_large_f2(uint64_t* h, const uint64_t* q, const void* m){
+void bmw_large_f2(uint64_t *h, const uint64_t *q, const void *m){
 	uint64_t xl=0, xh;
 	uint8_t i;
 	for(i=16;i<24;++i){
@@ -510,7 +510,7 @@ void bmw_large_f2(uint64_t* h, const uint64_t* q, const void* m){
 	h[15] += SHR64(xl, 2) ^ q[22] ^ q[15];
 }
 
-void bmw_large_nextBlock(bmw_large_ctx_t* ctx, const void* block){
+void bmw_large_nextBlock(bmw_large_ctx_t *ctx, const void *block){
 	uint64_t q[32];
 	dump_x(block, 16, 'M');
 	bmw_large_f0(q, ctx->h, block);
@@ -522,38 +522,41 @@ void bmw_large_nextBlock(bmw_large_ctx_t* ctx, const void* block){
 	ctx_dump(ctx);
 }
 
-void bmw_large_lastBlock(bmw_large_ctx_t* ctx, const void* block, uint16_t length_b){
-	uint8_t buffer[128];
+void bmw_large_lastBlock(bmw_large_ctx_t *ctx, const void *block, uint16_t length_b){
+	union {
+		uint8_t   v8[128];
+		uint64_t v64[ 16];
+	} buffer;
 	while(length_b >= BMW_LARGE_BLOCKSIZE){
 		bmw_large_nextBlock(ctx, block);
 		length_b -= BMW_LARGE_BLOCKSIZE;
 		block = (uint8_t*)block + BMW_LARGE_BLOCKSIZE_B;
 	}
-	memset(buffer, 0, 128);
-	memcpy(buffer, block, (length_b+7)/8);
-	buffer[length_b>>3] |= 0x80 >> (length_b&0x07);
+	memset(buffer.v8, 0, 128);
+	memcpy(buffer.v8, block, (length_b+7)/8);
+	buffer.v8[length_b>>3] |= 0x80 >> (length_b&0x07);
 	if(length_b+1>128*8-64){
-		bmw_large_nextBlock(ctx, buffer);
-		memset(buffer, 0, 128-8);
+		bmw_large_nextBlock(ctx, buffer.v8);
+		memset(buffer.v8, 0, 128-8);
 		ctx->counter -= 1;
 	}
-	*((uint64_t*)&(buffer[128-8])) = (uint64_t)(ctx->counter*1024LL)+(uint64_t)length_b;
-	bmw_large_nextBlock(ctx, buffer);
+	buffer.v64[15] = (uint64_t)(ctx->counter*1024LL)+(uint64_t)length_b;
+	bmw_large_nextBlock(ctx, buffer.v8);
 #if TWEAK
 	uint8_t i;
 	uint64_t q[32];
-	memset(buffer, 0xaa, 128);
+	memset(buffer.v8, 0xaa, 128);
 	for(i=0; i<16; ++i){
-		buffer[8*i] = i + 0xa0;
+		buffer.v8[8*i] = i + 0xa0;
 	}
-	bmw_large_f0(q, (uint64_t*)buffer, ctx->h);
-	bmw_large_f1(q, ctx->h, (uint64_t*)buffer);
-	bmw_large_f2((uint64_t*)buffer, q, ctx->h);
-	memcpy(ctx->h, buffer, 128);
+	bmw_large_f0(q, buffer.v64, ctx->h);
+	bmw_large_f1(q, ctx->h, buffer.v64);
+	bmw_large_f2(buffer.v64, q, ctx->h);
+	memcpy(ctx->h, buffer.v8, 128);
 #endif
 }
 
-void bmw384_init(bmw384_ctx_t* ctx){
+void bmw384_init(bmw384_ctx_t *ctx){
 	uint8_t i;
 	ctx->h[0] = 0x0001020304050607LL;
 	for(i=1; i<16; ++i){
@@ -566,7 +569,7 @@ void bmw384_init(bmw384_ctx_t* ctx){
 	ctx_dump(ctx);
 }
 
-void bmw512_init(bmw512_ctx_t* ctx){
+void bmw512_init(bmw512_ctx_t *ctx){
 	uint8_t i;
 	ctx->h[0] = 0x8081828384858687LL;
 	for(i=1; i<16; ++i){
@@ -576,31 +579,31 @@ void bmw512_init(bmw512_ctx_t* ctx){
 	ctx_dump(ctx);
 }
 
-void bmw384_nextBlock(bmw384_ctx_t* ctx, const void* block){
+void bmw384_nextBlock(bmw384_ctx_t *ctx, const void *block){
 	bmw_large_nextBlock(ctx, block);
 }
 
-void bmw512_nextBlock(bmw512_ctx_t* ctx, const void* block){
+void bmw512_nextBlock(bmw512_ctx_t *ctx, const void *block){
 	bmw_large_nextBlock(ctx, block);
 }
 
-void bmw384_lastBlock(bmw384_ctx_t* ctx, const void* block, uint16_t length_b){
+void bmw384_lastBlock(bmw384_ctx_t *ctx, const void *block, uint16_t length_b){
 	bmw_large_lastBlock(ctx, block, length_b);
 }
 
-void bmw512_lastBlock(bmw512_ctx_t* ctx, const void* block, uint16_t length_b){
+void bmw512_lastBlock(bmw512_ctx_t *ctx, const void *block, uint16_t length_b){
 	bmw_large_lastBlock(ctx, block, length_b);
 }
 
-void bmw384_ctx2hash(void* dest, const bmw384_ctx_t* ctx){
+void bmw384_ctx2hash(void *dest, const bmw384_ctx_t *ctx){
 	memcpy(dest, &(ctx->h[10]), 384/8);
 }
 
-void bmw512_ctx2hash(void* dest, const bmw512_ctx_t* ctx){
+void bmw512_ctx2hash(void *dest, const bmw512_ctx_t *ctx){
 	memcpy(dest, &(ctx->h[8]), 512/8);
 }
 
-void bmw384(void* dest, const void* msg, uint32_t length_b){
+void bmw384(void *dest, const void *msg, uint32_t length_b){
 	bmw_large_ctx_t ctx;
 	bmw384_init(&ctx);
 	while(length_b>=BMW_LARGE_BLOCKSIZE){
@@ -612,7 +615,7 @@ void bmw384(void* dest, const void* msg, uint32_t length_b){
 	bmw384_ctx2hash(dest, &ctx);
 }
 
-void bmw512(void* dest, const void* msg, uint32_t length_b){
+void bmw512(void *dest, const void *msg, uint32_t length_b){
 	bmw_large_ctx_t ctx;
 	bmw512_init(&ctx);
 	while(length_b>=BMW_LARGE_BLOCKSIZE){