.long 0x9555554c, 0x9aaaaaa1, 0x9ffffff6, 0xa555554b
/*******************************************************************************
-* uint32_t addelment(uint8_t j, const uint32_t* m, const uint32_t* h){
+* uint32_t addelment(uint8_t j, const uint32_t *m, const uint32_t *h){
* uint32_t r;
* r = pgm_read_dword(k_lut+j);
* r += rotl_addel(((uint32_t*)m)[j&0xf], j+0);
mov j, r24
movw h0, r20
movw m0, r22
- mov r25, r24
- lsl r25
- lsl r25
+ lsl r24
+ lsl r24
ldi r30, lo8(const_lut)
ldi r31, hi8(const_lut)
- add r30, r25
+ add r30, r24
adc r31, r1
lpm acc0, Z+
lpm acc1, Z+
ret
/*******************************************************************************
-* uint32_t bmw_small_expand1(uint8_t j, const void* m, const void* h, const uint32_t* q){
+* uint32_t bmw_small_expand1(uint8_t j, const void *m, const void *h, const uint32_t *q){
* uint32_t(*s[])(uint32_t) = {bmw_small_s1, bmw_small_s2, bmw_small_s3, bmw_small_s0};
* uint32_t r;
* uint8_t i;
ret
/*******************************************************************************
-* uint32_t bmw_small_expand2(uint8_t j, const void* m, const void* h, const uint32_t* q){
+* uint32_t bmw_small_expand2(uint8_t j, const void *m, const void *h, const uint32_t *q){
* uint32_t(*rf[])(uint32_t) = {bmw_small_r1, bmw_small_r2, bmw_small_r3,
* bmw_small_r4, bmw_small_r5, bmw_small_r6,
* bmw_small_r7};
rjmp expand1_exit
/*******************************************************************************
-* void bmw_small_f1(uint32_t* q, const void* m, const void* h){
+* void bmw_small_f1(uint32_t *q, const void *m, const void *h){
* uint8_t i;
* q[16] = bmw_small_expand1(0, m, h, q);
* q[17] = bmw_small_expand1(1, m, h, q);
* uint16_t hack_table[5] PROGMEM = { 0x0311, 0xDDB3, 0x2A79, 0x07AA, 0x51C2 };
* uint8_t offset_table[5] PROGMEM = { 4+16, 6+16, 9+16, 12+16, 13+16 };
*
-* void bmw_small_f0(uint32_t* h, const void* m, uint32_t* q){
+* void bmw_small_f0(uint32_t *h, const void *m, uint32_t *q){
* uint16_t hack_reg;
* uint8_t c,i,j;
* uint32_t(*s[])(uint32_t)={ bmw_small_s0, bmw_small_s1, bmw_small_s2,
ret
/*******************************************************************************
-* void bmw_small_f2(uint32_t* h, const uint32_t* q, const void* m){
+* void bmw_small_f2(uint32_t *h, const uint32_t *q, const void *m){
* uint32_t xl=0, xh;
* uint8_t i;
* for(i=16;i<24;++i){
#endif
/*******************************************************************************
-* void bmw_small_nextBlock(bmw_small_ctx_t* ctx, const void* block){
+* void bmw_small_nextBlock(bmw_small_ctx_t *ctx, const void *block){
* uint32_t q[32];
* dump_x(block, 16, 'M');
* bmw_small_f0(ctx->h, block, q);
/*******************************************************************************
-* void bmw224_init(bmw224_ctx_t* ctx){
+* void bmw224_init(bmw224_ctx_t *ctx){
* uint8_t i;
* ctx->h[0] = 0x00010203;
* for(i=1; i<16; ++i){
rjmp bmw_small_init
/*******************************************************************************
-* void bmw_small_lastBlock(bmw_small_ctx_t* ctx, const void* block, uint16_t length_b){
+* void bmw_small_lastBlock(bmw_small_ctx_t *ctx, const void *block, uint16_t length_b){
* struct {
* uint8_t buffer[64];
* uint32_t ctr;
ret
/*******************************************************************************
-* void bmw224_ctx2hash(void* dest, const bmw224_ctx_t* ctx){
+* void bmw224_ctx2hash(void *dest, const bmw224_ctx_t *ctx){
* memcpy(dest, &(ctx->h[9]), 224/8);
* }
*
rjmp 1f
/*******************************************************************************
-* void bmw256_ctx2hash(void* dest, const bmw256_ctx_t* ctx){
+* void bmw256_ctx2hash(void *dest, const bmw256_ctx_t *ctx){
* memcpy(dest, &(ctx->h[8]), 256/8);
* }
*
dec r22
brne 1b
ret
+
+/*******************************************************************************
+* void bmw256(void *dest, const void *msg, uint32_t length_b){
+* bmw_small_ctx_t ctx;
+* bmw256_init(&ctx);
+* while(length_b>=BMW_SMALL_BLOCKSIZE){
+* bmw_small_nextBlock(&ctx, msg);
+* length_b -= BMW_SMALL_BLOCKSIZE;
+* msg = (uint8_t*)msg + BMW_SMALL_BLOCKSIZE_B;
+* }
+* bmw_small_lastBlock(&ctx, msg, length_b);
+* bmw256_ctx2hash(dest, &ctx);
+* }
+*
+* param dest: r24:r25
+* param msg: r22:r23
+* param length_b: r18:r21
+*/
+ctx0 = 2
+ctx1 = 3
+msg0 = 4
+msg1 = 5
+len0 = 6
+len1 = 7
+len2 = 8
+len3 = 9
+dst0 = 10
+dst1 = 11
+.global bmw256
+bmw256:
+ push r16
+ ldi r16, 1
+ rjmp bmw_small_all
+
+/*******************************************************************************
+* void bmw224(void *dest, const void *msg, uint32_t length_b){
+* bmw_small_ctx_t ctx;
+* bmw224_init(&ctx);
+* while(length_b>=BMW_SMALL_BLOCKSIZE){
+* bmw_small_nextBlock(&ctx, msg);
+* length_b -= BMW_SMALL_BLOCKSIZE;
+* msg = (uint8_t*)msg + BMW_SMALL_BLOCKSIZE_B;
+* }
+* bmw_small_lastBlock(&ctx, msg, length_b);
+* bmw224_ctx2hash(dest, &ctx);
+* }
+*
+* param dest: r24:r25
+* param msg: r22:r23
+* param length_b: r18:r21
+*/
+ctx0 = 2
+ctx1 = 3
+msg0 = 4
+msg1 = 5
+len0 = 6
+len1 = 7
+len2 = 8
+len3 = 9
+dst0 = 10
+dst1 = 11
+.global bmw224
+bmw224:
+ push r16
+ clr r16
+
+bmw_small_all:
+ push_range 2, 11
+ stack_alloc_large 64+4
+ adiw r30, 1
+ movw ctx0, r30
+ movw dst0, r24
+ movw msg0, r22
+ movw len0, r18
+ movw len2, r20
+ movw r24, ctx0
+ ldi r30, pm_lo8(init_lut)
+ ldi r31, pm_hi8(init_lut)
+ add r30, r16
+ adc r31, r1
+ icall
+20:
+ mov r18, len2
+ or r18, len3
+ breq 50f
+ movw r24, ctx0
+ movw r22, msg0
+ rcall bmw_small_nextBlock
+ ldi r20, 2
+ sub len1, r20
+ sbc len2, r1
+ sbc len3, r1
+ ldi r20, 64
+ add msg0, r20
+ adc msg1, r1
+ rjmp 20b
+50:
+ movw r24, ctx0
+ movw r22, msg0
+ movw r20, len0
+ rcall bmw_small_lastBlock
+ movw r24, dst0
+ movw r22, ctx0
+ ldi r30, pm_lo8(c2h_lut)
+ ldi r31, pm_hi8(c2h_lut)
+ add r30, r16
+ adc r31, r1
+ icall
+ stack_free_large 64+4
+ pop_range 2, 11
+ pop r16
+ ret
+
+init_lut:
+ rjmp bmw224_init
+ rjmp bmw256_init
+c2h_lut:
+ rjmp bmw224_ctx2hash
+ rjmp bmw256_ctx2hash