#include <stdint.h>
#include <string.h>
#include "bmw_small.h"
-#include "memxor.h"
#define SHL32(a,n) ((a)<<(n))
#define SHR32(a,n) ((a)>>(n))
#include "f1_autogen.i"
-static inline
+/* static inline */
void bmw_small_f0(uint32_t* q, uint32_t* h, const uint32_t* m){
uint32_t t[16];
- uint32_t tr0, tr1, tr2;
+ uint32_t tr0, tr1, tr2, tmp;
t[ 0] = h[ 0] ^ m[ 0];
t[ 1] = h[ 1] ^ m[ 1];
t[ 2] = h[ 2] ^ m[ 2];
t[ 3] = h[ 3] ^ m[ 3];
t[ 4] = h[ 4] ^ m[ 4];
- t[ 5] = h[ 5] ^ m[ 5];
t[ 6] = h[ 6] ^ m[ 6];
- t[ 7] = h[ 7] ^ m[ 7];
t[ 8] = h[ 8] ^ m[ 8];
t[ 9] = h[ 9] ^ m[ 9];
- t[10] = h[10] ^ m[10];
t[11] = h[11] ^ m[11];
t[12] = h[12] ^ m[12];
+ t[15] = h[15] ^ m[15];
+ t[ 5] = h[ 5] ^ m[ 5];
+ t[10] = h[10] ^ m[10];
t[13] = h[13] ^ m[13];
+ t[ 7] = h[ 7] ^ m[ 7];
t[14] = h[14] ^ m[14];
- t[15] = h[15] ^ m[15];
dump_x(t, 16, 'T');
/*
q[10] = (t[ 8] - t[ 1] - t[ 4] - t[ 7] + t[15]);
q[13] = (t[ 2] + t[ 4] + t[ 7] + t[10] + t[11]);
*/
- q[ 0] = +t[ 5] +t[10] +t[13] +(tr1=-t[ 7]+t[14]) ;
- q[ 0] = S32_0(q[ 0]) + h[ 1];
- q[ 3] = +t[ 8] +t[13] +t[ 0] +(tr2=-t[ 1]-t[10]) ;
- q[ 3] = S32_3(q[ 3]) + h[ 4];
- q[ 6] = -t[11] +t[13] -t[ 0] -t[ 3] +t[ 4] ;
- q[ 6] = S32_1(q[ 6]) + h[ 7];
- q[ 9] = +t[ 0] +(tr0=-t[ 3]+t[ 6]) +(tr1) ;
- q[ 9] = S32_4(q[ 9]) + h[10];
- q[12] = -t[ 9] -(tr0) -(tr2) ;
- q[12] = S32_2(q[12]) + h[13];
- q[15] = -t[ 4] +(tr0=-t[ 9]+t[12]) +(tr1=-t[ 6]+t[13]) ;
- q[15] = S32_0(q[15]) + h[ 0];
- q[ 2] = +t[ 7] +t[15] +t[ 0] -(tr0) ;
- q[ 2] = S32_2(q[ 2]) + h[ 3];
- q[ 5] = +t[10] +(tr0=-t[ 2]+t[15]) +(tr2=+t[ 3]-t[12]) ;
- q[ 5] = S32_0(q[ 5]) + h[ 6];
- q[ 8] = -t[ 5] -(tr0) +(tr1) ;
- q[ 8] = S32_3(q[ 8]) + h[ 9];
- q[11] = -t[ 0] -t[ 2] +t[ 9] +(tr0=-t[ 5]+t[ 8]) ;
- q[11] = S32_1(q[11]) + h[12];
- q[14] = -t[11] +(tr0) +(tr2) ;
- q[14] = S32_4(q[14]) + h[15];
- q[ 1] = +t[ 6] +(tr0=+t[11]+t[14]) +(tr1=-t[ 8]-t[15]) ;
- q[ 1] = S32_1(q[ 1]) + h[ 2];
- q[ 4] = +t[ 9] +t[ 1] +t[ 2] -(tr0) ;
- q[ 4] = S32_4(q[ 4]) + h[ 5];
- q[ 7] = -t[12] -t[14] +t[ 1] -t[ 4] -t[ 5] ;
- q[ 7] = S32_2(q[ 7]) + h[ 8];
- q[10] = -t[ 1] +(tr0=-t[ 4]-t[ 7]) -(tr1) ;
- q[10] = S32_0(q[10]) + h[11];
- q[13] = +t[ 2] +t[10] +t[11] -(tr0) ;
- q[13] = S32_3(q[13]) + h[14];
+ tmp = +t[ 5] +t[10] +t[13] +(tr1=-t[ 7]+t[14]) ;
+ q[ 0] = S32_0(tmp) + h[ 1];
+ tmp = +t[ 8] +t[13] +t[ 0] -(tr2=+t[ 1]+t[10]) ;
+ q[ 3] = S32_3(tmp) + h[ 4];
+ tmp = -t[11] +t[13] -t[ 0] -t[ 3] +t[ 4] ;
+ q[ 6] = S32_1(tmp) + h[ 7];
+ tmp = +t[ 0] +(tr0=-t[ 3]+t[ 6]) +(tr1) ;
+ q[ 9] = S32_4(tmp) + h[10];
+ tmp = -t[ 9] -(tr0) +(tr2) ;
+ q[12] = S32_2(tmp) + h[13];
+ tmp = -t[ 4] +(tr0=-t[ 9]+t[12]) +(tr1=-t[ 6]+t[13]) ;
+ q[15] = S32_0(tmp) + h[ 0];
+ tmp = +t[ 7] +t[15] +t[ 0] -(tr0) ;
+ q[ 2] = S32_2(tmp) + h[ 3];
+ tmp = +t[10] +(tr0=-t[ 2]+t[15]) +(tr2=+t[ 3]-t[12]) ;
+ q[ 5] = S32_0(tmp) + h[ 6];
+ tmp = -t[ 5] -(tr0) +(tr1) ;
+ q[ 8] = S32_3(tmp) + h[ 9];
+ tmp = -t[ 0] -t[ 2] +t[ 9] +(tr0=-t[ 5]+t[ 8]) ;
+ q[11] = S32_1(tmp) + h[12];
+ tmp = -t[11] +(tr0) +(tr2) ;
+ q[14] = S32_4(tmp) + h[15];
+ tmp = +t[ 6] +(tr0=+t[11]+t[14]) -(tr1=+t[ 8]+t[15]) ;
+ q[ 1] = S32_1(tmp) + h[ 2];
+ tmp = +t[ 9] +t[ 1] +t[ 2] -(tr0) ;
+ q[ 4] = S32_4(tmp) + h[ 5];
+ tmp = -t[12] -t[14] +t[ 1] -t[ 4] -t[ 5] ;
+ q[ 7] = S32_2(tmp) + h[ 8];
+ tmp = -t[ 1] -(tr0=+t[ 4]+t[ 7]) +(tr1) ;
+ q[10] = S32_0(tmp) + h[11];
+ tmp = +t[ 2] +t[10] +t[11] +(tr0) ;
+ q[13] = S32_3(tmp) + h[14];
dump_x(q, 16, 'W');
}
}
void bmw_small_lastBlock(bmw_small_ctx_t* ctx, const void* block, uint16_t length_b){
- uint8_t buffer[64];
+ union {
+ uint8_t v8[64];
+ uint32_t v32[16];
+ uint64_t v64[ 8];
+ } buffer;
while(length_b >= BMW_SMALL_BLOCKSIZE){
bmw_small_nextBlock(ctx, block);
length_b -= BMW_SMALL_BLOCKSIZE;
block = (uint8_t*)block + BMW_SMALL_BLOCKSIZE_B;
}
- memset(buffer, 0, 64);
- memcpy(buffer, block, (length_b+7)/8);
- buffer[length_b>>3] |= 0x80 >> (length_b&0x07);
+ memset(buffer.v8, 0, 64);
+ memcpy(buffer.v8, block, (length_b+7)/8);
+ buffer.v8[length_b>>3] |= 0x80 >> (length_b&0x07);
if(length_b+1>64*8-64){
- bmw_small_nextBlock(ctx, buffer);
- memset(buffer, 0, 64-8);
+ bmw_small_nextBlock(ctx, buffer.v8);
+ memset(buffer.v8, 0, 64-8);
ctx->counter -= 1;
}
- *((uint64_t*)&(buffer[64-8])) = (uint64_t)(ctx->counter*512LL)+(uint64_t)length_b;
- bmw_small_nextBlock(ctx, buffer);
+ buffer.v64[7] = (uint64_t)(ctx->counter*512LL)+(uint64_t)length_b;
+ bmw_small_nextBlock(ctx, buffer.v8);
uint8_t i;
uint32_t q[32];
- memset(buffer, 0xaa, 64);
+ memset(buffer.v8, 0xaa, 64);
for(i=0; i<16;++i){
- buffer[i*4] = i+0xa0;
+ buffer.v8[i*4] = i+0xa0;
}
-// dump_x(buffer, 16, 'A');
+// dump_x(buffer.v8, 16, 'A');
dump_x(ctx->h, 16, 'M');
- bmw_small_f0(q, (uint32_t*)buffer, ctx->h);
- dump_x(buffer, 16, 'a');
+ bmw_small_f0(q, buffer.v32, ctx->h);
+ dump_x(buffer.v8, 16, 'a');
dump_x(q, 16, 'Q');
- bmw_small_f1(q, ctx->h, (uint32_t*)buffer);
+ bmw_small_f1(q, ctx->h, buffer.v32);
dump_x(q, 32, 'Q');
- bmw_small_f2((uint32_t*)buffer, q, ctx->h);
- memcpy(ctx->h, buffer, 64);
+ bmw_small_f2(buffer.v32, q, ctx->h);
+ memcpy(ctx->h, buffer.v8, 64);
}
void bmw224_init(bmw224_ctx_t* ctx){
projects / arm-crypto-lib.git / blobdiff