* \email daniel.otte@rub.de
* \date 2009-05-08
* \license GPLv3 or later
- *
+ *
*/
#include <stdint.h>
#include "blake_large.h"
#include "blake_common.h"
-#define BUG_3 1 /* bug compatibility with reference code */
-#define BUG_4 1 /* bug compatibility with reference code */
-
-uint64_t pgm_read_qword(void* p){
+static
+uint64_t pgm_read_qword(const void* p){
union{
uint64_t v64;
uint32_t v32[2];
}
static
-uint64_t blake_c[] PROGMEM = {
+const uint64_t blake_c[] PROGMEM = {
0x243F6A8885A308D3LL, 0x13198A2E03707344LL,
0xA4093822299F31D0LL, 0x082EFA98EC4E6C89LL,
0x452821E638D01377LL, 0xBE5466CF34E90C6CLL,
0x2FFD72DBD01ADFB7LL, 0xB8E1AFED6A267E96LL,
0xBA7C9045F12C7F99LL, 0x24A19947B3916CF7LL,
0x0801F2E2858EFC16LL, 0x636920D871574E69LL
-
};
-#define ROTL64(a, n) (((a)<<(n))|((a)>>(64-(n))))
-#define ROTR64(a, n) (((a)>>(n))|((a)<<(64-(n))))
+#define ROTL64(a, n) (((a)<<(n))|((a)>>(64-(n))))
+#define ROTR64(a, n) (((a)>>(n))|((a)<<(64-(n))))
#define CHANGE_ENDIAN32(a) (((a)<<24)| \
((0x0000ff00&(a))<<8)| \
((0x00ff0000&(a))>>8)| \
(a)>>24 )
+static
void blake_large_expand(uint64_t* v, const blake_large_ctx_t* ctx){
uint8_t i;
memcpy(v, ctx->h, 8*8);
v[8+i] = pgm_read_qword(&(blake_c[i]));
}
memxor((uint8_t*)v+8, ctx->s, 4*8);
-
+
}
+static
void blake_large_changeendian(void* dest, const void* src){
uint8_t i;
uint32_t tmp;
}
}
+static
void blake_large_compress(uint64_t* v,const void* m){
uint8_t r,i;
- uint8_t a,b,c,d, s0, s1;
- for(r=0; r<14; ++r){
+ uint8_t a,b,c,d, s0, s1, sigma_idx=0;
+ for(r=0; r<16; ++r){
for(i=0; i<8; ++i){
- // blake_large_g(r%10, i, v, (uint64_t*)m);
a = pgm_read_byte(blake_index_lut+4*i+0);
b = pgm_read_byte(blake_index_lut+4*i+1);
c = pgm_read_byte(blake_index_lut+4*i+2);
d = pgm_read_byte(blake_index_lut+4*i+3);
- s0 = pgm_read_byte(blake_sigma+16*r+2*i+0);
- s1 = pgm_read_byte(blake_sigma+16*r+2*i+1);
+ s0 = pgm_read_byte(blake_sigma+sigma_idx);
+ s1 = s0&0x0f;
+ s0 >>= 4;
+ ++sigma_idx;
+ if(sigma_idx>=80){
+ sigma_idx-=80;
+ }
v[a] += v[b] + (((uint64_t*)m)[s0] ^ pgm_read_qword(&(blake_c[s1])));
v[d] = ROTR64(v[d]^v[a], 32);
v[c] += v[d];
- v[b] = ROTR64(v[b]^v[c], 25);
+ v[b] = ROTR64(v[b]^v[c], 25);
v[a] += v[b] + (((uint64_t*)m)[s1] ^ pgm_read_qword(&(blake_c[s0])));
v[d] = ROTR64(v[d]^v[a], 16);
v[c] += v[d];
}
}
+static
void blake_large_collapse(blake_large_ctx_t* ctx, uint64_t* v){
uint8_t i;
for(i=0; i<8; ++i){
ctx->h[i] ^= ctx->s[i%4] ^ v[i] ^ v[8+i];
}
-}
+}
void blake_large_nextBlock(blake_large_ctx_t* ctx, const void* msg){
uint64_t v[16];
ctr = ctx->counter*1024+length_b;
memset(buffer, 0, 128);
memcpy(buffer, msg, (length_b+7)/8);
- buffer[length_b/8] |= 0x80 >> (length_b%8);
+ buffer[length_b/8] |= 0x80 >> (length_b&0x7);
blake_large_changeendian(buffer, buffer);
blake_large_expand(v, ctx);
-#if BUG_3
- uint8_t x=0;
- if(length_b%1024<895 && length_b%8)
- x=0x40;
- v[12] ^= ctr + x;
- v[13] ^= ctr + x;
-
-#else
- v[12] ^= ctr;
- v[13] ^= ctr;
-#endif
if(length_b>1024-128-2){
-#if BUG_4
- if(length_b<1017){
- blake_large_compress(v, buffer);
- blake_large_collapse(ctx, v);
- }
-#else
+ v[12] ^= ctr;
+ v[13] ^= ctr;
blake_large_compress(v, buffer);
blake_large_collapse(ctx, v);
-#endif
memset(buffer, 0, 128-8);
blake_large_expand(v, ctx);
+ } else {
+ if(length_b){
+ v[12] ^= ctr;
+ v[13] ^= ctr;
+ }
}
if(ctx->appendone)
- buffer[128-16-8] |= 0x01;
+ buffer[128-16-8] |= 0x01;
*((uint64_t*)(&(buffer[128-8]))) = ctr;
blake_large_compress(v, buffer);
blake_large_collapse(ctx, v);
-
+
}
-uint64_t blake64_iv[] PROGMEM = {
+const uint64_t blake512_iv[] PROGMEM = {
0x6A09E667F3BCC908LL, 0xBB67AE8584CAA73BLL,
0x3C6EF372FE94F82BLL, 0xA54FF53A5F1D36F1LL,
0x510E527FADE682D1LL, 0x9B05688C2B3E6C1FLL,
0x1F83D9ABFB41BD6BLL, 0x5BE0CD19137E2179LL
};
-void blake64_init(blake64_ctx_t* ctx){
+void blake512_init(blake512_ctx_t* ctx){
uint8_t i;
for(i=0; i<8; ++i){
- ctx->h[i] = pgm_read_qword(&(blake64_iv[i]));
+ ctx->h[i] = pgm_read_qword(&(blake512_iv[i]));
}
memset(ctx->s, 0, 4*8);
ctx->counter = 0;
ctx->appendone = 1;
}
-uint64_t blake48_iv[] PROGMEM = {
+const uint64_t blake384_iv[] PROGMEM = {
0xCBBB9D5DC1059ED8LL, 0x629A292A367CD507LL,
0x9159015A3070DD17LL, 0x152FECD8F70E5939LL,
0x67332667FFC00B31LL, 0x8EB44A8768581511LL,
0xDB0C2E0D64F98FA7LL, 0x47B5481DBEFA4FA4LL
};
-void blake48_init(blake48_ctx_t* ctx){
+void blake384_init(blake384_ctx_t* ctx){
uint8_t i;
for(i=0; i<8; ++i){
- ctx->h[i] = pgm_read_qword(&(blake48_iv[i]));
+ ctx->h[i] = pgm_read_qword(&(blake384_iv[i]));
}
memset(ctx->s, 0, 4*8);
ctx->counter = 0;
ctx->appendone = 0;
}
-void blake64_ctx2hash(void* dest, const blake64_ctx_t* ctx){
+void blake512_ctx2hash(void* dest, const blake512_ctx_t* ctx){
uint8_t i;
for(i=0; i<8; ++i){
((uint32_t*)dest)[2*i+0] = CHANGE_ENDIAN32((ctx->h[i])>>32);
}
}
-void blake48_ctx2hash(void* dest, const blake48_ctx_t* ctx){
+void blake384_ctx2hash(void* dest, const blake384_ctx_t* ctx){
uint8_t i;
for(i=0; i<6; ++i){
((uint32_t*)dest)[2*i+0] = CHANGE_ENDIAN32((ctx->h[i])>>32);
}
}
-void blake64_nextBlock(blake64_ctx_t* ctx, const void* block){
+void blake512_nextBlock(blake512_ctx_t* ctx, const void* block){
blake_large_nextBlock(ctx, block);
}
-void blake48_nextBlock(blake48_ctx_t* ctx, const void* block){
+void blake384_nextBlock(blake384_ctx_t* ctx, const void* block){
blake_large_nextBlock(ctx, block);
}
-void blake64_lastBlock(blake64_ctx_t* ctx, const void* block, uint16_t length_b){
+void blake512_lastBlock(blake512_ctx_t* ctx, const void* block, uint16_t length_b){
blake_large_lastBlock(ctx, block, length_b);
}
-void blake48_lastBlock(blake48_ctx_t* ctx, const void* block, uint16_t length_b){
+void blake384_lastBlock(blake384_ctx_t* ctx, const void* block, uint16_t length_b){
blake_large_lastBlock(ctx, block, length_b);
}
-void blake64(void* dest, const void* msg, uint32_t length_b){
+void blake512(void* dest, const void* msg, uint32_t length_b){
blake_large_ctx_t ctx;
- blake64_init(&ctx);
+ blake512_init(&ctx);
while(length_b>=BLAKE_LARGE_BLOCKSIZE){
blake_large_nextBlock(&ctx, msg);
msg = (uint8_t*)msg + BLAKE_LARGE_BLOCKSIZE_B;
length_b -= BLAKE_LARGE_BLOCKSIZE;
}
blake_large_lastBlock(&ctx, msg, length_b);
- blake64_ctx2hash(dest, &ctx);
+ blake512_ctx2hash(dest, &ctx);
}
-void blake48(void* dest, const void* msg, uint32_t length_b){
+void blake384(void* dest, const void* msg, uint32_t length_b){
blake_large_ctx_t ctx;
- blake48_init(&ctx);
+ blake384_init(&ctx);
while(length_b>=BLAKE_LARGE_BLOCKSIZE){
blake_large_nextBlock(&ctx, msg);
msg = (uint8_t*)msg + BLAKE_LARGE_BLOCKSIZE_B;
length_b -= BLAKE_LARGE_BLOCKSIZE;
}
blake_large_lastBlock(&ctx, msg, length_b);
- blake48_ctx2hash(dest, &ctx);
+ blake384_ctx2hash(dest, &ctx);
}
projects / avr-crypto-lib.git / blobdiff