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mickey_kernel.cu
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#ifndef __D_MICKEY_KERNEL__
#define __D_MICKEY_KERNEL__
#include "mickey.h"
#define R_Mask0 0x1279327b
#define R_Mask1 0xb5546660
#define R_Mask2 0xdf87818f
#define R_Mask3 0x00000003
#define Comp00 0x6aa97a30
#define Comp01 0x7942a809
#define Comp02 0x057ebfea
#define Comp03 0x00000006
#define Comp10 0xdd629e9a
#define Comp11 0xe3a21d63
#define Comp12 0x91c23dd7
#define Comp13 0x00000001
#define S_Mask00 0x9ffa7faf
#define S_Mask01 0xaf4a9381
#define S_Mask02 0x9cec5802
#define S_Mask03 0x00000001
#define S_Mask10 0x4c8cb877
#define S_Mask11 0x4911b063
#define S_Mask12 0x40fbc52b
#define S_Mask13 0x00000008
#define d_mickey_state(R,S) \
R##0,R##1,R##2,R##3,S##0,S##1,S##2,S##3
#define state(X,a) X##a
#define CLOCK_R(R,input_bit,control_bit) \
{ \
int Feedback_bit; \
int Carry0, Carry1, Carry2; \
\
Feedback_bit = ((state(R,3) >> 3) & 1) ^ (input_bit); \
Carry0 = (state(R,0) >> 31) & 1; \
Carry1 = (state(R,1) >> 31) & 1; \
Carry2 = (state(R,2) >> 31) & 1; \
\
if ((control_bit)) { \
state(R,0) ^= (state(R,0) << 1); \
state(R,1) ^= (state(R,1) << 1) ^ Carry0; \
state(R,2) ^= (state(R,2) << 1) ^ Carry1; \
state(R,3) ^= (state(R,3) << 1) ^ Carry2; \
} else { \
state(R,0) = (state(R,0) << 1); \
state(R,1) = (state(R,1) << 1) ^ Carry0; \
state(R,2) = (state(R,2) << 1) ^ Carry1; \
state(R,3) = (state(R,3) << 1) ^ Carry2; \
} \
\
if (Feedback_bit) { \
state(R,0) ^= R_Mask0; \
state(R,1) ^= R_Mask1; \
state(R,2) ^= R_Mask2; \
state(R,3) ^= R_Mask3; \
} \
}
#define CLOCK_S(S,input_bit,control_bit) \
{ \
int Feedback_bit; \
int Carry0, Carry1, Carry2; \
\
Feedback_bit = ((state(S,3) >> 3) & 1) ^ (input_bit); \
Carry0 = (state(S,0) >> 31) & 1; \
Carry1 = (state(S,1) >> 31) & 1; \
Carry2 = (state(S,2) >> 31) & 1; \
\
state(S,0) = (state(S,0) << 1) ^ ((state(S,0) ^ Comp00) & \
((state(S,0) >> 1) ^ (state(S,1) << 31) ^ Comp10) & 0xfffffffe); \
state(S,1) = (state(S,1) << 1) ^ ((state(S,1) ^ Comp01) & \
((state(S,1) >> 1) ^ (state(S,2) << 31) ^ Comp11)) ^ Carry0; \
state(S,2) = (state(S,2) << 1) ^ ((state(S,2) ^ Comp02) & \
((state(S,2) >> 1) ^ (state(S,3) << 31) ^ Comp12)) ^ Carry1; \
state(S,3) = (state(S,3) << 1) ^ ((state(S,3) ^ Comp03) & \
((state(S,3) >> 1) ^ Comp13) & 0x7) ^ Carry2; \
\
if (Feedback_bit) { \
if ((control_bit)) { \
state(S,0) ^= S_Mask10; \
state(S,1) ^= S_Mask11; \
state(S,2) ^= S_Mask12; \
state(S,3) ^= S_Mask13; \
} else { \
state(S,0) ^= S_Mask00; \
state(S,1) ^= S_Mask01; \
state(S,2) ^= S_Mask02; \
state(S,3) ^= S_Mask03; \
} \
} \
}
#define CLOCK_KG_INIT(R,S,input_bit) \
{ \
int control_bit_r; \
int control_bit_s; \
\
control_bit_r = ((state(S,1) >> 2) ^ (state(R,2) >> 3)) & 1; \
control_bit_s = ((state(R,1) >> 1) ^ (state(S,2) >> 3)) & 1; \
\
CLOCK_R(R, ((state(S,1) >> 18) & 1) ^ (input_bit), control_bit_r); \
CLOCK_S(S, (input_bit), control_bit_s); \
\
}
#define CLOCK_KG_KS(ks,R,S) \
{ \
int control_bit_r; \
int control_bit_s; \
\
ks = (state(R,0) ^ state(S,0)) & 1; \
control_bit_r = ((state(S,1) >> 2) ^ (state(R,2) >> 3)) & 1; \
control_bit_s = ((state(R,1) >> 1) ^ (state(S,2) >> 3)) & 1; \
\
CLOCK_R(R, 0, control_bit_r); \
CLOCK_S(S, 0, control_bit_s); \
}
#define min(a,b) ((a)<(b))?(a):(b)
__device__ __host__ u32 d_mickey(u32 key0, u32 key1, u32 key2,
u32 iv0, u32 iv1, u32 iv2,
u32 nr_output_bits) {
int i,z;
int iv_size=MICKEY_IV_SIZE;
u32 output=0;
/* define state */
u32 d_mickey_state(R,S);
/* initialize R and S */
state(R,0)=state(R,1)=state(R,2)=state(R,3)=0;
state(S,0)=state(S,1)=state(S,2)=state(S,3)=0;
/* - load IV ----------------------------------------------------- */
{
int nr_iv_clks=min(iv_size,32);
#if (MICKEY_IV_SIZE>=32)
#pragma unroll 32
#endif
for(i=0;i<nr_iv_clks;i++) { CLOCK_KG_INIT(R,S,(iv0>>(31-i))&1); }
iv_size-=nr_iv_clks; nr_iv_clks=min(iv_size,32);
#if (MICKEY_IV_SIZE>=64)
#pragma unroll 32
#endif
for(i=0;i<nr_iv_clks;i++) { CLOCK_KG_INIT(R,S,(iv1>>(31-i))&1); }
iv_size-=nr_iv_clks; nr_iv_clks=min(iv_size,32);
#if (MICKEY_IV_SIZE==80)
#pragma unroll 16
#endif
for(i=0;i<nr_iv_clks;i++) { CLOCK_KG_INIT(R,S,(iv2>>(31-i))&1); }
}
/* --------------------------------------------------------------- */
/* - load key ---------------------------------------------------- */
{
#pragma unroll 32
for(i=0;i<32;i++) { CLOCK_KG_INIT(R,S,(key0>>(31-i))&1); }
#pragma unroll 32
for(i=0;i<32;i++) { CLOCK_KG_INIT(R,S,(key1>>(31-i))&1); }
#pragma unroll 16
for(i=0;i<16;i++) { CLOCK_KG_INIT(R,S,(key2>>(31-i))&1); }
}
/* --------------------------------------------------------------- */
/* - preclock ---------------------------------------------------- */
#if ((NR_INIT_ROUNDS%100)==0)
#pragma unroll 100
#elif ((NR_INIT_ROUNDS%32)==0)
#pragma unroll 32
#elif ((NR_INIT_ROUNDS%16)==0)
#pragma unroll 16
#elif ((NR_INIT_ROUNDS%8)==0)
#pragma unroll 8
#elif ((NR_INIT_ROUNDS%4)==0)
#pragma unroll 4
#elif ((NR_INIT_ROUNDS%2)==0)
#pragma unroll 2
#endif
for(i=0;i<NR_INIT_ROUNDS;i++) { CLOCK_KG_INIT(R,S,0); }
/* --------------------------------------------------------------- */
/* - generate keystream ------------------------------------------ */
#if (NR_TEST_ITERATIONS>1)
#pragma unroll 1
for(int nr_test_iter=0;nr_test_iter<NR_TEST_ITERATIONS;nr_test_iter++) {
output=0;
#endif
#ifdef NR_OUTPUT_BITS
#if NR_OUTPUT_BITS==32
#pragma unroll 32
#elif NR_OUTPUT_BITS==16
#pragma unroll 16
#elif NR_OUTPUT_BITS==8
#pragma unroll 8
#elif NR_OUTPUT_BITS==4
#pragma unroll 4
#elif NR_OUTPUT_BITS==2
#pragma unroll 2
#endif
#endif
for(i=0;i<nr_output_bits-1;i++) {
CLOCK_KG_KS(z,R,S)
output|=(z<<(31-i));
}
z=(state(R,0) ^ state(S,0)) & 1;
output|=(z<<(31-i));
#if (NR_TEST_ITERATIONS>1)
}
#endif
/* --------------------------------------------------------------- */
return output;
}
/*
For our application we a only care about the word-length on
the GPU, which is 32-bits, so this implementation is slightly
limited though it's quite easy to extend.
*/
int d_mickey_test(char *fname) {
u32 z;
FILE *fp;
int i,nr_tests;
u32 test_key[3],test_iv[3],test_z;
if(!(fp=fopen(fname,"r"))) {
fprintf(stderr,"d_mickey_test: Failed to open \'%s\'\n", fname);
return -1;
}
fscanf(fp,"%u\n",&nr_tests);
debug("nr_tests=%d\n",nr_tests);
for(i=0;i<nr_tests;i++) {
fscanf(fp,"%x,%x,%x,%x,%x,%x,%x,\n",&test_key[0],&test_key[1],&test_key[2],
&test_iv[0],&test_iv[1],&test_iv[2],
&test_z);
#define ch_endianess(a) \
{ \
a=(((a>>24)&0x000000ff) | ((a>> 8)&0x0000ff00) \
| ((a<< 8)&0x00ff0000) | ((a<<24)&0xff000000)); \
}
ch_endianess(test_key[0]); ch_endianess(test_iv[0]);
ch_endianess(test_key[1]); ch_endianess(test_iv[1]);
ch_endianess(test_key[2]); ch_endianess(test_iv[2]);
ch_endianess(test_z);
#undef ch_endianess
z=d_mickey(test_key[0],test_key[1],test_key[2],
test_iv[0],test_iv[1],test_iv[2],NR_OUTPUT_BITS);
if(z^( test_z & (0xFFFFFFFF>>(32-NR_OUTPUT_BITS)))) {
fprintf(stderr,"d_mickey_test: Failed test number %2d:"
"%08x!=%08x\n",i,z,test_z);
fclose(fp);
return -1;
}
}
fclose(fp);
return 0;
}
/*
int main() {
d_mickey_test("mickey.long.test.32");
return 0;
}
*/
#define black_box_key(key) \
key##0,key##1,key##2
#define black_box_iv(iv) \
iv##0,iv##1,iv##2
#define black_box_clear_key(key) \
key##0=key##1=key##2=0; \
#define black_box_clear_iv(iv) \
iv##0=iv##1=iv##2=0; \
#define black_box_id2iv(iv,I,nr_idx,threadID) \
{ \
u32 _i; \
u64 tid=(threadID); \
black_box_clear_iv(iv); \
for(_i=0;_i<(nr_idx);_i++) { \
u32 mask = (tid&0x1)<<((I)[_i]-32*((I)[_i]/32)); \
switch(((I)[_i]/32)) { \
case 0: iv##0 |= mask; break; \
case 1: iv##1 |= mask; break; \
case 2: iv##2 |= mask; break; \
} \
tid>>=1; \
} \
}
#define black_box_key_set_bitpos(key,bitpos) \
{ \
u32 mask=(0x1)<<((bitpos)-32*((bitpos)/32)); \
switch(((bitpos)/32)) { \
case 0: key##0 |= mask; break; \
case 1: key##1 |= mask; break; \
case 2: key##2 |= mask; break; \
} \
}
#define black_box_key_random(key,rand) \
{ \
key##0=rand(); \
key##1=rand(); \
key##2=rand(); \
}
#define black_box_add_keys(keyD,key0,key1) \
{ \
keyD##0=key0##0^key1##0; \
keyD##1=key0##1^key1##1; \
keyD##2=key0##2^key1##2; \
}
/* - general macros ------------------------------------------ */
#define black_box_def_key(key) \
u32 black_box_key(key);
#define black_box_def_iv(iv) \
u32 black_box_iv(iv);
#define black_box_def_state(key,iv) \
black_box_def_key(key); \
black_box_def_iv(iv); \
black_box_clear_key(key); \
black_box_clear_iv(iv);
#define black_box_test(fname) \
d_mickey_test(fname)
#define black_box_query(key,iv,nr_output_bits) \
d_mickey(black_box_key(key),black_box_iv(iv),nr_output_bits)
/* ----------------------------------------------------------- */
#endif