6 #include "twister-small.h"
9 void maxi_round3(twister_state_t* ctx, void* msg, uint8_t last_null){
11 msg = ((uint8_t*)msg) + 8;
16 msg = ((uint8_t*)msg) + 8;
21 void twister_small_nextBlock(twister_state_t* ctx, void* msg){
24 memcpy(tmp, ctx->s, 64);
25 maxi_round3(ctx, msg, 0);
26 memxor(ctx->s, tmp, 64);
27 msg = ((uint8_t*)msg) + 3*8;
29 memcpy(tmp, ctx->s, 64);
30 maxi_round3(ctx, msg, 0);
31 memxor(ctx->s, tmp, 64);
32 msg = ((uint8_t*)msg) + 3*8;
34 memcpy(tmp, ctx->s, 64);
35 maxi_round3(ctx, msg, 1);
36 memxor(ctx->s, tmp, 64);
37 ctx->length_counter_b += 512;
40 void twister_small_init(twister_state_t* ctx, uint16_t hashsize_b){
41 memset(ctx->s, 0, 64);
42 ctx->counter=0xffffffffffffffffLL;
43 ctx->s[0][7] = hashsize_b>>8;
44 ctx->s[1][7] = hashsize_b&0xff;
45 ctx->length_counter_b = 0;
48 void twister_small_lastBlock(twister_state_t* ctx, void* msg, uint16_t length_b){
51 twister_small_nextBlock(ctx, msg);
52 msg = ((uint8_t*)msg)+64;
56 memcpy(tmp, msg, (length_b+7)/8);
57 tmp[length_b/8] |= 0x80 >> (length_b&0x07);
58 twister_small_nextBlock(ctx, tmp);
59 ctx->length_counter_b -= 512 - length_b;
60 mini_round(ctx, &(ctx->length_counter_b));
64 void twister_small_ctx2hash(void* dest, twister_state_t* ctx, uint16_t hashsize_b){
67 uint16_t i=hashsize_b;
70 memcpy(tmp,ctx->s, 64);
72 memxor(ctx->s, tmp, 64);
75 *((uint8_t*)dest) = ctx->s[7-j][0] ^ tmp[7-j][0];
76 dest = (uint8_t*)dest + 1;
80 memcpy(tmp,ctx->s, 64);
82 memxor(ctx->s, tmp, 64);
85 *((uint8_t*)dest) = ctx->s[3-j][0] ^ tmp[3-j][0];
86 dest = (uint8_t*)dest + 1;
91 #ifndef NO_TWISTER_256
93 void twister256_init(twister256_ctx_t* ctx){
94 twister_small_init(ctx, 256);
97 void twister256_nextBlock(twister256_ctx_t* ctx, void* msg){
98 twister_small_nextBlock(ctx, msg);
101 void twister256_lastBlock(twister256_ctx_t* ctx, void* msg, uint16_t length_b){
102 twister_small_lastBlock(ctx, msg, length_b);
105 void twister256_ctx2hash(void* dest, twister256_ctx_t* ctx){
106 twister_small_ctx2hash(dest, ctx, 256);
109 void twister256(void* dest, void* msg, uint32_t msg_length_b){
111 twister_small_init(&ctx, 256);
112 while(msg_length_b >=512){
113 twister_small_nextBlock(&ctx, msg);
114 msg = (uint8_t*)msg + 512/8;
117 twister_small_lastBlock(&ctx, msg, msg_length_b);
118 twister_small_ctx2hash(dest, &ctx, 256);
123 #ifndef NO_TWISTER_224
125 void twister224_init(twister224_ctx_t* ctx){
126 twister_small_init(ctx, 224);
129 void twister224_nextBlock(twister224_ctx_t* ctx, void* msg){
130 twister_small_nextBlock(ctx, msg);
133 void twister224_lastBlock(twister224_ctx_t* ctx, void* msg, uint16_t length_b){
134 twister_small_lastBlock(ctx, msg, length_b);
137 void twister224_ctx2hash(void* dest, twister224_ctx_t* ctx){
138 twister_small_ctx2hash(dest, ctx, 224);
141 void twister224(void* dest, void* msg, uint32_t msg_length_b){
143 twister_small_init(&ctx, 224);
144 while(msg_length_b >=512){
145 twister_small_nextBlock(&ctx, msg);
146 msg = (uint8_t*)msg + 512/8;
149 twister_small_lastBlock(&ctx, msg, msg_length_b);
150 twister_small_ctx2hash(dest, &ctx, 224);