6 #include "twister-small.h"
8 /*********************************************************************/
10 void twister_small_init(twister_state_t* ctx, uint16_t hashsize_b){
11 memset(ctx->s, 0, 64);
12 ctx->counter=0xffffffffffffffffLL;
13 ctx->s[0][7] = hashsize_b>>8;
14 ctx->s[1][7] = hashsize_b&0xff;
15 ctx->length_counter_b = 0;
18 /*********************************************************************/
20 void twister_small_nextBlock(twister_state_t* ctx, void* msg){
23 memcpy(tmp, ctx->s, 64);
24 twister_mini_round(ctx, msg);
25 msg = ((uint8_t*)msg) + 8;
26 twister_mini_round(ctx, msg);
27 msg = ((uint8_t*)msg) + 8;
28 twister_mini_round(ctx, msg);
29 msg = ((uint8_t*)msg) + 8;
30 memxor(ctx->s, tmp, 64);
33 memcpy(tmp, ctx->s, 64);
34 twister_mini_round(ctx, msg);
35 msg = ((uint8_t*)msg) + 8;
36 twister_mini_round(ctx, msg);
37 msg = ((uint8_t*)msg) + 8;
38 twister_mini_round(ctx, msg);
39 msg = ((uint8_t*)msg) + 8;
40 memxor(ctx->s, tmp, 64);
43 memcpy(tmp, ctx->s, 64);
44 twister_mini_round(ctx, msg);
45 msg = ((uint8_t*)msg) + 8;
46 twister_mini_round(ctx, msg);
47 twister_blank_round(ctx);
48 memxor(ctx->s, tmp, 64);
49 ctx->length_counter_b += 512;
52 /*********************************************************************/
54 void twister_small_lastBlock(twister_state_t* ctx, void* msg, uint16_t length_b){
57 twister_small_nextBlock(ctx, msg);
58 msg = ((uint8_t*)msg)+64;
62 memcpy(tmp, msg, (length_b+7)/8);
63 tmp[length_b/8] |= 0x80 >> (length_b&0x07);
64 twister_small_nextBlock(ctx, tmp);
65 ctx->length_counter_b -= 512 - length_b;
66 twister_mini_round(ctx, &(ctx->length_counter_b));
67 twister_blank_round(ctx);
70 /*********************************************************************/
72 void twister_small_ctx2hash(void* dest, twister_state_t* ctx, uint16_t hashsize_b){
73 twister_ctx2hash(dest, ctx, hashsize_b);
76 /*********************************************************************/
77 /*********************************************************************/
79 #ifndef NO_TWISTER_256
81 void twister256_init(twister256_ctx_t* ctx){
82 twister_small_init(ctx, 256);
85 /*********************************************************************/
87 void twister256_nextBlock(twister256_ctx_t* ctx, void* msg){
88 twister_small_nextBlock(ctx, msg);
91 /*********************************************************************/
93 void twister256_lastBlock(twister256_ctx_t* ctx, void* msg, uint16_t length_b){
94 twister_small_lastBlock(ctx, msg, length_b);
97 /*********************************************************************/
99 void twister256_ctx2hash(void* dest, twister256_ctx_t* ctx){
100 twister_ctx2hash(dest, ctx, 256);
103 /*********************************************************************/
105 void twister256(void* dest, void* msg, uint32_t msg_length_b){
107 twister_small_init(&ctx, 256);
108 while(msg_length_b >=512){
109 twister_small_nextBlock(&ctx, msg);
110 msg = (uint8_t*)msg + 512/8;
113 twister_small_lastBlock(&ctx, msg, msg_length_b);
114 twister_ctx2hash(dest, &ctx, 256);
117 /*********************************************************************/
121 /*********************************************************************/
122 /*********************************************************************/
124 #ifndef NO_TWISTER_224
126 void twister224_init(twister224_ctx_t* ctx){
127 twister_small_init(ctx, 224);
130 /*********************************************************************/
132 void twister224_nextBlock(twister224_ctx_t* ctx, void* msg){
133 twister_small_nextBlock(ctx, msg);
136 /*********************************************************************/
138 void twister224_lastBlock(twister224_ctx_t* ctx, void* msg, uint16_t length_b){
139 twister_small_lastBlock(ctx, msg, length_b);
142 /*********************************************************************/
144 void twister224_ctx2hash(void* dest, twister224_ctx_t* ctx){
145 twister_ctx2hash(dest, ctx, 224);
148 /*********************************************************************/
150 void twister224(void* dest, void* msg, uint32_t msg_length_b){
152 twister_small_init(&ctx, 224);
153 while(msg_length_b >=512){
154 twister_small_nextBlock(&ctx, msg);
155 msg = (uint8_t*)msg + 512/8;
158 twister_small_lastBlock(&ctx, msg, msg_length_b);
159 twister_ctx2hash(dest, &ctx, 224);